{"product_id":"q8814-1454","title":"Tetraethoxysilane, TEOS (99.999%-Si) PURATREM | 78-10-4","description":"\u003cstyle\u003e\n  \/* isQuote *\/\n  div.swatch.clearfix {\n    display:  unset ;\n  }\n\n  \/* Hide sku *\/\n  .product-sku, \n  #leadtimetext {\n    display: none !important;\n  }\n\n  \/* Square brackets *\/\n  span.l_bracket:before {\n    content: \"[\";\n  }\n  span.r_bracket:after {\n    content: \"]\";\n  }\n\n  \/* Hazard Symbols *\/\n  .ghs-symbols-row {\n    display: flex;\n    flex-wrap: wrap;\n    gap: 10px;\n  }\n\n  .hazard-symbol-container {\n    width: 50px;\n  }\n\n  .hazard-symbol {\n    object-fit: contain;\n    aspect-ratio: 1 \/ 1;\n    width: 100%;\n  }\n\n  \/* Section *\/\n  .section-header {\n    font-size: 2rem;\n    font-weight: bold;\n    color: #239ab7;\n    background-color: #f2f2f2;\n    padding: 10px;\n    border-radius: 4px;\n  }\n\n  .section-row {\n    display: grid;\n    grid-template-columns: repeat(8, 1fr);\n    padding: 6px 10px;\n    border-bottom: 1px solid #e0e0e0;\n  }\n\n  .section-content {\n    padding-bottom: 6px;\n  }\n\n  .section-content .section-row:last-child {\n    border-bottom: none;\n  }\n\n  .section-row .row-key {\n    grid-column: 1 \/ 3;\n    font-weight: bold;\n    align-self: center;\n  }\n\n  .section-row .row-value {\n    grid-column: 3 \/ 9;\n  }\n\n  .section-row ul li {\n    line-height: 2rem !important;\n    font-size: 1.3rem;\n  }\n\n  .html-area {\n    padding: 10px;\n    width: 100%;\n    overflow-x: auto;\n  }\n\n  .html-area {\n    padding: 10px;\n  }\n\n  .html-area p {\n    margin: 0 !important;\n  }\n\n  .hazard-grid {\n    display: grid;\n    grid-template-columns: repeat(6, 1fr);\n    gap: 0 10px;\n    font-size: 1.3rem;\n  }\n\n  .reference-item {\n    padding: 10px 10px;\n    border-bottom: 1px solid #e0e0e0;\n  }\n\n  .section-content .reference-item:last-child {\n    border-bottom: none;\n  }\n\n  .reference-item h3 {\n    font-size: 1.5rem !important;\n  }\n\n  .reference-item .publication-item {\n    font-size: 1.3rem !important;\n    line-height: 1.5rem !important;\n  }\n\n  \/* SDS Search *\/\n  .section-row .coa-search-container {\n    display: flex;\n    align-items: center;\n    margin-top: 6px;\n  }\n\n  .section-row .coa-search-container input {\n    border: 1px solid #e0e0e0;\n    height: 2.5rem;\n    border-top-left-radius: 0.5rem !important;\n    border-bottom-left-radius: 0.5rem !important;\n    padding: 3px 5px;\n  }\n\n  .section-row .coa-search-container button {\n    height: 2.5rem;\n    line-height: 2.5rem;\n    border-radius: 0 0.5rem 0.5rem 0;\n  }\n\n  .section-row .coa-search-container button .coa-search-button-content {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    gap: 3px;\n  }\n\n  .section-row .coa-search-container button .coa-search-button-content .search-spin {\n    display: none;\n    width: 2rem;\n  }\n\n  .section-row .coa-search-container .coa-not-found {\n    display: none;\n    margin: 0 0 0 2rem;\n    color: #ad2031;\n    font-size: 1.3rem;\n  }\n\n  \/* Table *\/\n  .html-area table {\n    width: 100%;\n    border-collapse: collapse;\n    margin: 15px 0;\n  }\n\n  .html-area table th,\n  .html-area table td {\n    border: 1px solid #e0e0e0;\n    padding: 5px 8px;\n  }\n\n  @media (max-width: 600px) {\n    .section-row {\n      grid-template-columns: repeat(1, 1fr);\n    }\n\n    .section-row .row-key {\n      grid-column: 1 \/ 2;\n    }\n\n    .section-row .row-value {\n      grid-column: 1 \/ 2;\n    }\n\n    .hazard-grid {\n      grid-template-columns: repeat(2, 1fr);\n      gap: 0 20px;\n    }\n  }\n  \n\u003c\/style\u003e\n\n\u003cdiv class=\"section\"\u003e\n  \n\n    \u003c!-- Order Info --\u003e\n    \u003ch2 class=\"section-header\"\u003eProduct Information\u003c\/h2\u003e\n    \u003cdiv class=\"section-content\"\u003e\n        \n        \u003cdiv class=\"section-row\"\u003e\n            \u003cdiv class=\"row-key\"\u003eProduct Name\u003c\/div\u003e\n            \u003cdiv class=\"row-value\"\u003eTetraethoxysilane, TEOS (99.999%-Si) PURATREM\u003c\/div\u003e\n        \u003c\/div\u003e\n        \n        \n        \n        \u003cdiv class=\"section-row\"\u003e\n            \u003cdiv class=\"row-key\"\u003eBrand Name\u003c\/div\u003e\n            \u003cdiv class=\"row-value\"\u003eUS-Strem\u003c\/div\u003e\n        \u003c\/div\u003e\n        \n\n        \n        \u003cdiv class=\"section-row\"\u003e\n            \u003cdiv class=\"row-key\"\u003eProduct Number\u003c\/div\u003e\n            \u003cdiv class=\"row-value\"\u003e14-1454\u003c\/div\u003e\n        \u003c\/div\u003e\n        \n\n        \n        \u003cdiv class=\"section-row\"\u003e\n            \u003cdiv class=\"row-key\"\u003eCAS\u003c\/div\u003e\n            \u003cdiv class=\"row-value\"\u003e78-10-4\u003c\/div\u003e\n        \u003c\/div\u003e\n        \n\n        \n\n        \n\n        \n\n        \u003cdiv class=\"section-row\"\u003e\n            \u003cdiv class=\"row-key\"\u003eCertificate of Analysis (COA)​\u003c\/div\u003e\n            \u003cdiv class=\"row-value\"\u003e\n                \u003cdiv class=\"coa-search-container\"\u003e\n                    \u003cinput id=\"coa-link-input\" type=\"text\" placeholder=\"Enter Lot No.\"\u003e\n                    \u003cbutton id=\"coa-search-button\"\u003e\n                        \u003cdiv class=\"coa-search-button-content\"\u003e\n                            \u003csvg class=\"search-spin\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 200 200\"\u003e\u003cradialgradient id=\"a7\" cx=\".66\" fx=\".66\" cy=\".3125\" fy=\".3125\" gradienttransform=\"scale(1.5)\"\u003e\u003cstop offset=\"0\" stop-color=\"#FFFFFF\"\u003e\u003c\/stop\u003e\u003cstop offset=\".3\" stop-color=\"#FFFFFF\" stop-opacity=\".9\"\u003e\u003c\/stop\u003e\u003cstop offset=\".6\" stop-color=\"#FFFFFF\" stop-opacity=\".6\"\u003e\u003c\/stop\u003e\u003cstop offset=\".8\" stop-color=\"#FFFFFF\" stop-opacity=\".3\"\u003e\u003c\/stop\u003e\u003cstop offset=\"1\" stop-color=\"#FFFFFF\" stop-opacity=\"0\"\u003e\u003c\/stop\u003e\u003c\/radialgradient\u003e\u003ccircle transform-origin=\"center\" fill=\"none\" stroke=\"url(#a7)\" stroke-width=\"15\" stroke-linecap=\"round\" stroke-dasharray=\"200 1000\" stroke-dashoffset=\"0\" cx=\"100\" cy=\"100\" r=\"70\"\u003e\u003canimatetransform type=\"rotate\" attributename=\"transform\" calcmode=\"spline\" dur=\"2\" values=\"360;0\" keytimes=\"0;1\" keysplines=\"0 0 1 1\" repeatcount=\"indefinite\"\u003e\u003c\/animatetransform\u003e\u003c\/circle\u003e\u003ccircle transform-origin=\"center\" fill=\"none\" opacity=\".2\" stroke=\"#FFFFFF\" stroke-width=\"15\" stroke-linecap=\"round\" cx=\"100\" cy=\"100\" r=\"70\"\u003e\u003c\/circle\u003e\u003c\/svg\u003e\n                            \u003cspan\u003eSearch\u003c\/span\u003e\n                        \u003c\/div\u003e\n                    \u003c\/button\u003e\n                    \u003cspan class=\"coa-not-found\"\u003eCOA not found\u003c\/span\u003e\n                \u003c\/div\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n\n    \u003c\/div\u003e\n\n    \u003c!-- General Info --\u003e\n    \n        \u003ch2 class=\"section-header\"\u003eGeneral Information\u003c\/h2\u003e\n        \u003cdiv class=\"section-content\"\u003e\n            \n\n            \n            \u003cdiv class=\"section-row\"\u003e\n                \u003cdiv class=\"row-key\"\u003ePubChem CID\u003c\/div\u003e\n                \u003cdiv class=\"row-value\"\u003e6517\u003c\/div\u003e\n            \u003c\/div\u003e\n            \n\n            \n                \u003cdiv class=\"section-row\"\u003e\n                    \u003cdiv class=\"row-key\"\u003eIUPAC Name\u003c\/div\u003e\n                    \u003cdiv class=\"row-value\"\u003etetraethyl silicate\u003c\/div\u003e\n                \u003c\/div\u003e\n            \n\n            \n                \u003cdiv class=\"section-row\"\u003e\n                    \u003cdiv class=\"row-key\"\u003eInChI Key\u003c\/div\u003e\n                    \u003cdiv class=\"row-value\"\u003eBOTDANWDWHJENH-UHFFFAOYSA-N\u003c\/div\u003e\n                \u003c\/div\u003e\n            \n\n            \n                \u003cdiv class=\"section-row\"\u003e\n                    \u003cdiv class=\"row-key\"\u003eSMILES\u003c\/div\u003e\n                    \u003cdiv class=\"row-value\"\u003eCCO\u003cspan class=\"l_bracket\"\u003e\u003c\/span\u003eSi\u003cspan class=\"r_bracket\"\u003e\u003c\/span\u003e(OCC)(OCC)OCC\u003c\/div\u003e\n                \u003c\/div\u003e\n            \n        \u003c\/div\u003e\n    \n\n    \u003c!-- Properties --\u003e\n    \n\n    \u003c!-- Safety Info --\u003e\n    \n\n    \u003c!-- Description --\u003e\n    \n    \u003ch2 class=\"section-header\"\u003eDescription\u003c\/h2\u003e\n    \u003cdiv class=\"html-area\"\u003e\n        \u003ch2\u003eProduct Introduction\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eTetraethoxysilane (CAS No. 78-10-4)\u003c\/strong\u003e, also commonly known as \u003cstrong\u003eTetraethyl orthosilicate (TEOS)\u003c\/strong\u003e, is an important silicon alkoxide and widely used \u003cstrong\u003esilica precursor, sol-gel reagent, and silicon source\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIts molecular structure contains four ethoxy groups bonded to silicon. Tetraethoxysilane readily undergoes hydrolysis and condensation reactions, making it particularly useful for preparing \u003cstrong\u003esilica, siloxane networks, porous materials, coatings, nanoparticles, and silicon-containing thin films\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eBecause of its controllable sol-gel chemistry and high silicon content, Tetraethoxysilane is widely used in \u003cstrong\u003ematerials science, nanotechnology, semiconductor processing, surface engineering, and inorganic synthesis\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003e \u003c\/h2\u003e\n\u003ch2\u003eMechanism \/ Principle\u003c\/h2\u003e\n\u003ch3\u003eHydrolysis\u003c\/h3\u003e\n\u003cp\u003eTetraethoxysilane reacts with water under suitable acidic or basic conditions to form silanol groups:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSi(OC₂H₅)₄ + H₂O → Si–OH + C₂H₅OH\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe degree and rate of hydrolysis depend on factors such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWater-to-silane ratio\u003c\/li\u003e\n\u003cli\u003epH\u003c\/li\u003e\n\u003cli\u003eSolvent\u003c\/li\u003e\n\u003cli\u003eTemperature\u003c\/li\u003e\n\u003cli\u003eCatalyst\u003c\/li\u003e\n\u003cli\u003eReaction time\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCondensation\u003c\/h3\u003e\n\u003cp\u003eThe generated silanol groups undergo condensation to form Si–O–Si bonds:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSi–OH + HO–Si → Si–O–Si + H₂O\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eor:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSi–OH + Si–OR → Si–O–Si + ROH\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eContinuous hydrolysis and condensation ultimately generate a three-dimensional \u003cstrong\u003esiloxane\/silica network\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis reaction mechanism is the basis for many \u003cstrong\u003esol-gel synthesis and silica-material fabrication processes\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003e \u003c\/h2\u003e\n\u003ch2\u003eKey Research Applications\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003e1. Sol-Gel Synthesis\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eTetraethoxysilane is one of the most commonly used precursors for sol-gel processing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSilica gel synthesis\u003c\/li\u003e\n\u003cli\u003eXerogel preparation\u003c\/li\u003e\n\u003cli\u003eAerogel preparation\u003c\/li\u003e\n\u003cli\u003ePorous silica materials\u003c\/li\u003e\n\u003cli\u003eSilica coatings\u003c\/li\u003e\n\u003cli\u003eHybrid sol-gel materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e2. Silica Nanoparticle Synthesis\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eTetraethoxysilane is widely used as a silicon precursor for preparing silica nanoparticles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSiO₂ nanoparticles\u003c\/li\u003e\n\u003cli\u003eMesoporous silica\u003c\/li\u003e\n\u003cli\u003eCore-shell particles\u003c\/li\u003e\n\u003cli\u003eFunctionalized silica\u003c\/li\u003e\n\u003cli\u003eNanostructured silica\u003c\/li\u003e\n\u003cli\u003eDrug-delivery materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e3. Semiconductor Materials\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eHigh-purity Tetraethoxysilane can serve as a precursor for silicon oxide deposition and other silicon-containing materials.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSiO₂ thin films\u003c\/li\u003e\n\u003cli\u003eDielectric layers\u003c\/li\u003e\n\u003cli\u003eSemiconductor processing\u003c\/li\u003e\n\u003cli\u003eMicroelectronics\u003c\/li\u003e\n\u003cli\u003eWafer processing\u003c\/li\u003e\n\u003cli\u003eThin-film deposition\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTEOS-based deposition processes are used to produce silicon oxide films in semiconductor and microelectronics applications.\u003c\/p\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e4. Surface Coatings\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eTetraethoxysilane can form silica-based networks on various substrates.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProtective coatings\u003c\/li\u003e\n\u003cli\u003eGlass coatings\u003c\/li\u003e\n\u003cli\u003eOptical coatings\u003c\/li\u003e\n\u003cli\u003eAnti-corrosion coatings\u003c\/li\u003e\n\u003cli\u003eHard coatings\u003c\/li\u003e\n\u003cli\u003eFunctional surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e5. Organic–Inorganic Hybrid Materials\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eTetraethoxysilane can be combined with organic precursors to prepare hybrid materials.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOrganic–inorganic hybrids\u003c\/li\u003e\n\u003cli\u003eHybrid coatings\u003c\/li\u003e\n\u003cli\u003eFunctional nanocomposites\u003c\/li\u003e\n\u003cli\u003eSol-gel polymers\u003c\/li\u003e\n\u003cli\u003eAdvanced materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e6. Porous Materials\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eBy controlling hydrolysis and condensation conditions, Tetraethoxysilane can be used to prepare silica materials with tailored porosity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMesoporous silica\u003c\/li\u003e\n\u003cli\u003ePorous coatings\u003c\/li\u003e\n\u003cli\u003eAdsorbent materials\u003c\/li\u003e\n\u003cli\u003eCatalytic supports\u003c\/li\u003e\n\u003cli\u003eSeparation materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e7. Surface Functionalization\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eTetraethoxysilane can provide a silica-based platform for subsequent surface functionalization.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSilica surface engineering\u003c\/li\u003e\n\u003cli\u003eFunctional nanoparticle preparation\u003c\/li\u003e\n\u003cli\u003eBiomaterial modification\u003c\/li\u003e\n\u003cli\u003eChemical sensors\u003c\/li\u003e\n\u003cli\u003eCatalytic interfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e \u003c\/h2\u003e\n\u003ch2\u003eAdvantages\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-purity \u003cstrong\u003esilicon precursor\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eExcellent precursor for SiO₂ formation\u003c\/li\u003e\n\u003cli\u003eWell-established sol-gel chemistry\u003c\/li\u003e\n\u003cli\u003eSuitable for silica nanoparticle synthesis\u003c\/li\u003e\n\u003cli\u003eApplicable to porous silica materials\u003c\/li\u003e\n\u003cli\u003eUseful for thin-film deposition\u003c\/li\u003e\n\u003cli\u003eSuitable for semiconductor research\u003c\/li\u003e\n\u003cli\u003eCompatible with organic–inorganic hybrid systems\u003c\/li\u003e\n\u003cli\u003eUseful for surface and coating applications\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple research and electronic-material grades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e \u003c\/h2\u003e\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eStore in a \u003cstrong\u003etightly closed container\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eProtect from excessive moisture and water.\u003c\/li\u003e\n\u003cli\u003eStore in a cool, dry and well-ventilated area.\u003c\/li\u003e\n\u003cli\u003eMinimize exposure to atmospheric humidity.\u003c\/li\u003e\n\u003cli\u003eUse dry equipment and containers when appropriate.\u003c\/li\u003e\n\u003cli\u003eFollow the supplier-recommended storage conditions.\u003c\/li\u003e\n\u003cli\u003eHandle in a suitable fume hood.\u003c\/li\u003e\n\u003cli\u003eAvoid contact with skin and eyes.\u003c\/li\u003e\n\u003cli\u003eWear appropriate gloves, protective clothing, and eye protection.\u003c\/li\u003e\n\u003cli\u003eKeep away from heat and ignition sources.\u003c\/li\u003e\n\u003cli\u003eFollow the product-specific SDS for detailed storage, handling, transportation, and disposal requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTetraethoxysilane can undergo hydrolysis in the presence of water. TCI recommends storing the material under inert gas in a cool and dark location. (\u003ca target=\"_new\"\u003e\u003c\/a\u003e\u003ca target=\"_blank\" href=\"https:\/\/www.tcichemicals.com\/US\/en\/p\/T0100?utm_source=chatgpt.com\"\u003etcichemicals.com\u003c\/a\u003e)\u003c\/p\u003e\n\u003ch2\u003e \u003c\/h2\u003e\n\u003ch2\u003eResearch Areas\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eTetraethoxysilane (CAS No. 78-10-4)\u003c\/strong\u003e is widely used in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaterials science\u003c\/li\u003e\n\u003cli\u003eSol-gel chemistry\u003c\/li\u003e\n\u003cli\u003eNanotechnology\u003c\/li\u003e\n\u003cli\u003eSemiconductor manufacturing\u003c\/li\u003e\n\u003cli\u003eMicroelectronics\u003c\/li\u003e\n\u003cli\u003eSurface chemistry\u003c\/li\u003e\n\u003cli\u003eSilica synthesis\u003c\/li\u003e\n\u003cli\u003eNanoparticle research\u003c\/li\u003e\n\u003cli\u003eThin-film deposition\u003c\/li\u003e\n\u003cli\u003eCoatings\u003c\/li\u003e\n\u003cli\u003ePhotonics\u003c\/li\u003e\n\u003cli\u003eCatalysis\u003c\/li\u003e\n\u003cli\u003eBiomaterials\u003c\/li\u003e\n\u003cli\u003ePolymer and hybrid materials\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003c\/div\u003e\n    \n\n    \u003c!-- Faq --\u003e\n    \n    \u003ch2 class=\"section-header\"\u003eFAQ\u003c\/h2\u003e\n    \u003cdiv class=\"html-area\"\u003e\n        \u003ch3\u003eQ1: What is Tetraethoxysilane?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Tetraethoxysilane is a silicon alkoxide with \u003cstrong\u003eCAS No. 78-10-4\u003c\/strong\u003e, molecular formula \u003cstrong\u003eC₈H₂₀O₄Si\u003c\/strong\u003e, and molecular weight \u003cstrong\u003e208.33 g\/mol\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003eQ2: Is Tetraethoxysilane the same as TEOS?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. \u003cstrong\u003eTetraethoxysilane\u003c\/strong\u003e and \u003cstrong\u003eTetraethyl orthosilicate (TEOS)\u003c\/strong\u003e are names for the same compound, CAS 78-10-4.\u003c\/p\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003eQ3: What is Tetraethoxysilane used for?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It is primarily used as a \u003cstrong\u003esilicon and silica precursor\u003c\/strong\u003e for sol-gel synthesis, silica nanoparticles, porous silica, coatings, thin films, and semiconductor materials.\u003c\/p\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003eQ4: What is the molecular formula of Tetraethoxysilane?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The molecular formula is \u003cstrong\u003eC₈H₂₀O₄Si\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003eQ5: What is the molecular weight of Tetraethoxysilane?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The molecular weight is \u003cstrong\u003e208.33 g\/mol\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003eQ6: Can Tetraethoxysilane be used to prepare silica nanoparticles?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. Tetraethoxysilane is one of the most widely used silicon precursors for preparing \u003cstrong\u003esilica nanoparticles and mesoporous silica\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003eQ7: Is Tetraethoxysilane used in semiconductor manufacturing?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. High-purity Tetraethoxysilane can be used as a silicon precursor for \u003cstrong\u003esilicon oxide thin films and dielectric materials\u003c\/strong\u003e in semiconductor processing.\u003c\/p\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003eQ8: Is Tetraethoxysilane moisture sensitive?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Tetraethoxysilane undergoes hydrolysis in the presence of water, so exposure to moisture should be minimized during storage and handling.\u003c\/p\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003eQ9: What is the difference between Tetraethoxysilane and Tetramethoxysilane?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Tetraethoxysilane contains four \u003cstrong\u003eethoxy groups\u003c\/strong\u003e, while Tetramethoxysilane contains four \u003cstrong\u003emethoxy groups\u003c\/strong\u003e. Both are silicon alkoxide precursors, but their hydrolysis and condensation behavior can differ.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n\n    \u003c!-- References --\u003e\n    \n    \u003ch2 class=\"section-header\"\u003e\n        \u003cspan style=\"display: block;\"\u003eReferences\u003c\/span\u003e\n        \u003cspan style=\"display: block; font-size: 1.2rem; color: #777; font-weight: lighter;\"\u003eData Source From Pubchem\u003c\/span\u003e\n    \u003c\/h2\u003e\n    \u003cdiv class=\"section-content\"\u003e\n        \n            \u003cdiv class=\"reference-item\"\u003e\n                \n                    \n                    \u003ca href=\"https:\/\/doi.org\/10.1186\/s42483-026-00413-0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\n                        \u003ch3\u003eA novel nano-fungicide for Botrytis cinerea control: in planta efficacy and mechanistic insights of silver nanoparticles on a thiolated dendritic mesoporous silica framework\u003c\/h3\u003e\n                    \u003c\/a\u003e\n                    \n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003ePublication Name: Phytopathology Research\u003c\/div\u003e\n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003ePublication Date: 2026-03-19\u003c\/div\u003e\n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003eDOI: 10.1186\/s42483-026-00413-0\u003c\/div\u003e\n                \n            \u003c\/div\u003e\n        \n            \u003cdiv class=\"reference-item\"\u003e\n                \n                    \n                    \u003ca href=\"https:\/\/doi.org\/10.1007\/s10337-026-04485-0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\n                        \u003ch3\u003eChemoselective Probes for Profiling of Carboxylic Acid Metabolites in Biological Tissue\u003c\/h3\u003e\n                    \u003c\/a\u003e\n                    \n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003ePublication Name: Chromatographia\u003c\/div\u003e\n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003ePublication Date: 2026-03-04\u003c\/div\u003e\n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003eDOI: 10.1007\/s10337-026-04485-0\u003c\/div\u003e\n                \n            \u003c\/div\u003e\n        \n            \u003cdiv class=\"reference-item\"\u003e\n                \n                    \n                    \u003ca href=\"https:\/\/doi.org\/10.1007\/s10971-026-07120-4\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\n                        \u003ch3\u003eOptimisation of silica-cork aerogel composites for efficient fire-retardant thermoacoustic barrier\u003c\/h3\u003e\n                    \u003c\/a\u003e\n                    \n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003ePublication Name: Journal of Sol-Gel Science and Technology\u003c\/div\u003e\n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003ePublication Date: 2026-03-04\u003c\/div\u003e\n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003eDOI: 10.1007\/s10971-026-07120-4\u003c\/div\u003e\n                \n            \u003c\/div\u003e\n        \n            \u003cdiv class=\"reference-item\"\u003e\n                \n                    \n                    \u003ca href=\"https:\/\/doi.org\/10.1007\/s10562-026-05319-2\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\n                        \u003ch3\u003eConstruction of Ni-GaOx Sites on Hierarchical Porous SBA-15 Support for Propane Dehydrogenation\u003c\/h3\u003e\n                    \u003c\/a\u003e\n                    \n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003ePublication Name: Catalysis Letters\u003c\/div\u003e\n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003ePublication Date: 2026-03-04\u003c\/div\u003e\n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003eDOI: 10.1007\/s10562-026-05319-2\u003c\/div\u003e\n                \n            \u003c\/div\u003e\n        \n            \u003cdiv class=\"reference-item\"\u003e\n                \n                    \n                    \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/41775855\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\n                        \u003ch3\u003eIntegration of magnetic dispersive solid-phase extraction and deep eutectic solvent-based dispersive liquid-liquid microextraction for the extraction and preconcentration of phenethylamines in sport and bodybuilding supplements\u003c\/h3\u003e\n                    \u003c\/a\u003e\n                    \n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003ePublication Name: Microchimica Acta\u003c\/div\u003e\n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003ePublication Date: 2026-03-03\u003c\/div\u003e\n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003eDOI: 10.1007\/s00604-026-07945-4\u003c\/div\u003e\n                \n            \u003c\/div\u003e\n        \n    \u003c\/div\u003e\n    \n\n\n    \u003cscript\u003e\n        const coaSearchButton = document.getElementById('coa-search-button');\n        coaSearchButton.addEventListener('click', async function() {\n            const coaLinkInput = document.getElementById('coa-link-input');\n            const spinElement = document.querySelector('.search-spin');\n            const notFoundElement = document.querySelector('.coa-not-found');\n\n            const lot = coaLinkInput.value.trim().toUpperCase();\n            if (lot.length \u003e 0) {\n                spinElement.style.display = 'block';\n                notFoundElement.style.display = 'none';\n\n                const url = `https:\/\/web.jkchemical.com\/partial\/coaFileLotNumber\/${lot}`;\n                await fetch(url).then((res) =\u003e {\n                    if (res.status === 200) {\n                        window.open(url, '_blank');\n                    } else {\n                        notFoundElement.style.display = 'block';\n                    }\n                }).finally(() =\u003e {\n                    spinElement.style.display = 'none';\n                });\n            }\n        });\n    \u003c\/script\u003e\n\n\n\u003c\/div\u003e","brand":"US-Strem","offers":[{"title":"1×25g","offer_id":45722373882046,"sku":"SC14-1454_25_G","price":130.0,"currency_code":"USD","in_stock":true},{"title":"1×500g","offer_id":45722373980350,"sku":"SC14-1454_500_G","price":1538.0,"currency_code":"USD","in_stock":true},{"title":"1×100g","offer_id":45722374045886,"sku":"SC14-1454_100_G","price":386.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0506\/0005\/0878\/files\/1e6f43c161478446874f88cc47a45229_7a316172-5cd3-40aa-85b9-84bad1b7dfea.jpg?v=1788908598","url":"https:\/\/www.jk-sci.com\/products\/q8814-1454","provider":"J\u0026K Scientific LLC","version":"1.0","type":"link"}