Chemical · Product Detail
n-Octyltriethoxysilane
Alkylsilane for hydrophobic mineral-surface treatments and qualified filler modification.
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n-Octyltriethoxysilane at a Glance
ZXCHEM is an N-octyltriethoxysilane supplier and exporter in China. n-Octyltriethoxysilane, also called triethoxycaprylylsilane, is an alkyltriethoxysilane identified by CAS 2943-75-1. It is supplied as colourless transparent liquid with purity >98.0%.
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Standard lead time is approximately 14 days from order confirmation.
n-Octyltriethoxysilane Specifications
Grade-specific supply limits. The agreed specification and batch COA govern delivery.
Commercial Information
Storage & Shipping
Storage Conditions
Keep tightly sealed, cool and ventilated in dry compatible containers. Protect from moisture, heat and strong oxidizing agents. Use dedicated dry tools or transfer lines.
Shelf life
One year in sealed original packaging under the specified storage conditions.
Packaging
210 L drums (180 kg net) or 25 L drums (20 kg net)
Handling & Protection
Use controlled dry transfer with local extraction when mist or vapour may be generated. Avoid skin and eye contact; wear chemical-resistant gloves, goggles and protective clothing. Control alcohol vapour during qualified hydrolysis.
What Is n-Octyltriethoxysilane?
n-Octyltriethoxysilane (triethoxycaprylylsilane), CAS 2943-75-1, C14H32O3Si, is an alkyl silane. It is used as a penetrating water repellent for concrete, stone and brick, and to make cosmetic pigments such as TiO2 and iron oxides hydrophobic.
The supply grade has purity above 98.0% and refractive index n25D 1.4170–1.4200; typical density is 0.879 g/mL at 25°C.
It is not regulated as dangerous goods. It hydrolyses with moisture, releasing ethanol, so keep drums sealed.
As an octyltriethoxysilane supplier and exporter in China, ZXCHEM packs the colourless liquid in 210 L drums (180 kg net) or 25 L drums (20 kg net).
See all surface treatment chemicals in our catalog.
n-Octyltriethoxysilane Applications
Construction water repellent
Penetrating sealer for concrete, stone and brick.
Cosmetic pigments
Hydrophobic treatment for TiO2 and iron oxides.
Filler treatment
Surface treatment for mineral fillers.
Why Source n-Octyltriethoxysilane from ZXCHEM
Combined chemical orders
Source several chemical raw materials through one ZXCHEM contact. We coordinate product selection, quotations and suitable consolidated shipments so you can plan the order with one team.
Dedicated R&D Laboratory
Discuss specifications, sample results and application questions with our technical team. Our dedicated R&D laboratory supports product testing and helps clarify material selection.
Experienced Chemical Logistics
ZXCHEM has more than 30 years of experience in dangerous-goods transportation. We coordinate suitable shipments through logistics companies in which we hold equity interests in Qingdao, Shanghai, Guangzhou and Tianjin.
Dedicated Purchasing Support
Your account manager follows the order from quotation and contract signing through shipment and after-sales support. One contact coordinates technical documents, commercial details and delivery updates.
n-Octyltriethoxysilane FAQ
Which n-Octyltriethoxysilane grade should I choose?
Select purity >98.0% and refractive index n25D 1.4170–1.4200 against the required surface-treatment process. Compare sample performance, substrate preparation and the agreed specification.
Can I request a n-Octyltriethoxysilane sample for testing?
Yes. We can provide free samples for testing. Tell us the application, the grade you need and the tests you plan to run.
How is n-Octyltriethoxysilane packed and shipped?
Standard packing is 210 L drums (180 kg net) or 25 L drums (20 kg net). The usual minimum order quantity is 100 kg and standard lead time is approximately 14 days from order confirmation. It ships as non-dangerous goods.
Which documents are available for n-Octyltriethoxysilane?
The TDS lists the supply specification and the SDS covers safety and transport; both can be downloaded on this page. Each shipment comes with a batch COA.
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