蒸汽密度
7.2 (vs air)
质量水平
蒸汽压
<1 mmHg ( 20 °C)
检测方案
≥99.0% (GC)
形式
liquid
折射率
n20/D 1.382 (lit.)
n20/D 1.383
bp
168 °C (lit.)
密度
0.933 g/mL at 20 °C (lit.)
SMILES字符串
CCO[Si](OCC)(OCC)OCC
InChI
1S/C8H20O4Si/c1-5-9-13(10-6-2,11-7-3)12-8-4/h5-8H2,1-4H3
InChI key
BOTDANWDWHJENH-UHFFFAOYSA-N
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一般描述
应用
- 用作二氢嘧啶酮合成试剂，结合与氯化铁使用。
- 用作制作湿敏材料聚（2-丙烯酰胺基-2-甲基丙烷磺酸盐）（poly-AMPS）的改性剂。
- 用作通过铜催化、无配体Ullmann反应合成三芳基胺和二芳基醚的介质。
- 用作二氧化硅干凝胶制备的前体，可用于药物载体。
- 用作Stober法球状体二氧化硅颗粒合成的前体。
警示用语：
Warning
危险分类
Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 3 - STOT SE 3
靶器官
Respiratory system
WGK
WGK 1
闪点(°F)
closed cup
闪点(°C)
closed cup
个人防护装备
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
法规信息
How does the storage temperature relate to shipping conditions?
The storage conditions that a Sigma-Aldrich catalog and label recommend for products are deliberately conservative. For many products, long-term storage at low temperatures will increase the time during which they are expected to remain in specification and therefore are labeled accordingly. Where short-term storage, shipping time frame, or exposure to conditions other than those recommended for long-term storage will not affect product quality, Sigma-Aldrich will ship at ambient temperature. The products sensitive to short-term exposure to conditions other than their recommended long-term storage are shipped on wet or dry ice. Ambient temperature shipping helps to control shipping costs for our customers. At any time, our customers can request wet- or dry-ice shipment, but the special handling is at customer expense if our product history indicates that the product is stable for regular shipment. See Shipping and Storage for more information.
Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How do I find price and availability?
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
What type of applications can Product No. 86578, Tetraethyl orthosilicate (TEOS), be used in?
TEOS can be used to synthesize sol-gels or aerogels.
How do you create a sol-gel with Tetraethyl orthosilicate (TEOS), Product No. 86578?
TEOS can be polymerized with water; the polymerization is based on the hydrolysis or the Si-O-Et groups through forming networks linked by Si-O-Si groups.
How can I accelerate the polymerization of Tetraethyl orthosilicate (TEOS), Product No. 86578?
The polymerization of TEOS can be accelerated or driven to completion by the addtion of acid or base, both of which serve as a catalyst.
What are the applications of sol-gels formed from Tetraethyl orthosilicate (TEOS), Product No. 86578?
One of the most improtant application of the sol-gel process is the snythesis of zeolites. Other applications are optical ceramic materials or functionalized biosensors.
What is the vapor pressure of Tetraethyl orthosilicate (TEOS), Product No. 86578, at room temperature?
The vapor pressure of TEOS at room temperature is 1.5 Torr.
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