Products Description
Product Name: Trimethoxyoctylsilane
CAS: 3069-40-7
EINECS: 221-338-7
Boiling point: 75 °C
Density: 0.907 g/mL at 25 °C(lit.)
Vapor pressure: 0-12790Pa at 20-25℃
Refractive index: n20/D 1.416(lit.)
Specification
| Items | Specifications |
| Appearance | Colorless and transparent liquid |
| Purity | 99% |
| Storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| Package | 1 kg/bag, 20 kg/drum, 25 kg/drum |
Application
1. Trimethoxyoctylsilane is a long-chain alkyl silane coupling agent primarily used for surface modification to impart hydrophobicity and oleophobicity to inorganic substrates such as glass, silica, metals, and minerals .
2. Trimethoxyoctylsilane CAS 3069-40-7 serves as a water repellent and anti-corrosion coating agent for construction materials, textiles, and automotive applications .
3. Trimethoxyoctylsilane is employed as a dispersing agent and surface modifier for nanoparticles and fillers to improve compatibility with organic polymer matrices in composite materials .
4. In material science research, trimethoxyoctylsilane is utilized to create superhydrophobic surfaces, self-cleaning coatings, and corrosion-resistant layers through self-assembled monolayer formation .
Storage and Precautions
1. Trimethoxyoctylsilane must be stored in a tightly sealed container in a cool, dry, and well-ventilated environment, protected from moisture as it is moisture sensitive; recommended storage at 2-8°C under inert gas .
2. Trimethoxyoctylsilane CAS 3069-40-7 is classified with GHS hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation), with signal word "Warning" .
3. Personnel must wear chemical-resistant gloves, safety goggles with side-shields, and protective clothing when handling this substance, ensuring adequate ventilation in work areas .
4. Keep Trimethoxyoctylsilane CAS 3069-40-7 away from incompatible materials such as strong oxidizing agents, strong acids, and strong bases to prevent decomposition; avoid release to the environment .
Emergency response to leakage
1. Isolate the spill area, ensure adequate ventilation, and wear full personal protective equipment including chemical-resistant gloves, safety goggles, and suitable dust respirator when Trimethoxyoctylsilane is released .
2. For Trimethoxyoctylsilane CAS 3069-40-7 spills, contain and collect the product using inert absorbent materials such as sand, diatomite, or universal binders with non-sparking tools, and place into suitable closed containers for disposal .
3. Avoid creating vapors or mists during cleanup to prevent respiratory exposure; prevent the product from entering drains or water courses .
4. Dispose of collected material according to local, state, and federal environmental regulations through licensed chemical destruction or controlled incineration .
Fire prevention measures
1. Trimethoxyoctylsilane is a combustible liquid with a flash point of 66-84°C and may decompose under fire conditions, emitting toxic fumes including carbon monoxide, carbon dioxide, and silicon oxides .
2. Use dry chemical powder, carbon dioxide, alcohol-resistant foam, or water spray to extinguish fires involving the product; do NOT use a direct water jet as Trimethoxyoctylsilane CAS 3069-40-7 may scatter burning material .
3. Firefighters should wear self-contained breathing apparatus in pressure-demand, MSHA/NIOSH approved, and full protective gear when handling burning Trimethoxyoctylsilane due to hazardous decomposition gases generated by thermal decomposition .
4. During combustion, may emit irritant and toxic fumes; contain fire runoff to prevent environmental contamination .
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| 10 | If you want to need more information,welcome to contact us at any time.
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Packaging




Transportation & Payment

About Transportation
Depending on the requirements of our clients, we can give a variety of transportation options.
For smaller orders, we offer air shipping or international courier services like FedEx, DHL, TNT, EMS, and numerous other unique lines of international transit.
We can transport by sea to a specified port for bigger amounts.
Additionally, we can offer unique services based on the requirements of our clients and the characteristics of their goods.

* We can offer a range of payment options to our clients.
* When the sum is modest, clients typically pay with PayPal, Western Union, Alibaba, and other similar services.
* When the sum is significant, clients typically pay with T/T, L/C at sight, Alibaba, and so on.
* Furthermore, an increasing number of consumers will use Alipay or WeChat Pay to make payments.
FAQ
1
May I get any sample from you?
Re: Yes, of course, we'd like to provide sample to you according to your demands.
2
What is your MOQ?
Re: Usually our MOQ is 1 kg, but sometimes it is also flexible and depends on different products.
3
How long I can get my goods after payment?
Re: If shipped by couriers or air, it usually cost 5-10 days.
If shipped by sea, it usually cost 3-40 days, which depends on your destination.
4
Do you have any after-sales service?
Re: Yes, we will inform you progress of the order, such as product preparation, declaration, transportation follow-up, customs clearance assistance, technical guidance, etc.
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