Name | hydroxytrimethylsilane |
Synonyms | Silanole CCRIS 1320 Trimethylsilanol Silanol, trimethyl- Hydroxytrimethylsilane hydroxytrimethylsilane Silanol,1,1,1-triMethyl- Medetomidine Impurity 17 Silanol, 1,1,1-trimethyl- |
CAS | 1066-40-6 |
EINECS | 213-914-1 |
InChI | InChI=1/C3H9OSi.Na/c1-5(2,3)4;/h1-3H3;/q-1;+1 |
Molecular Formula | C3H10OSi |
Molar Mass | 90.2 |
Density | 0.950 |
Melting Point | -4.5 °C |
Boling Point | 90℃/760Torr |
Flash Point | 4°(39°F) |
Water Solubility | Soluble in water (1.00 mg/ml). |
Vapor Presure | 19-55hPa at 25℃ |
Specific Gravity | 0.8139 |
BRN | 1361356 |
pKa | 12.67±0.58(Predicted) |
Storage Condition | Sealed in dry,Store in freezer, under -20°C |
Sensitive | 4: no reaction with water under neutral conditions |
Refractive Index | 1.3889 |
Hazard Symbols | F - Flammable |
Risk Codes | 11 - Highly Flammable |
UN IDs | UN 1993BF 3 / PGII |
WGK Germany | 1 |
TSCA | Yes |
HS Code | 29319090 |
Hazard Class | 3 |
LogP | 1.19-5.06 at 20-25℃ |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Overview | trimethylsilanol boiling point 100 °c. Spontaneous ignition point 395. Relative density 0.8112(20/4 degrees C), refractive index 1.3880 (20 degrees C). Easy dehydration, condensation synthesis of hexamethyldisiloxane. It can be prepared by hydrolysis of trimethylchlorosilane. In the preparation of organic silicone oils and silicone rubbers, hexamethyldisiloxane, a condensate thereof, can be used as a capping group. The hydroxyl group in the Si-O bond of trimethylsilanol is unstable, and condensation dehydration is carried out under the action of acid or base or heat to produce hexamethyldisiloxane. |
Application | compared with the corresponding alcohols, trimethylsilyl alcohol has stronger acidity, can react with tetrahydrolithium aluminum, Si-OH bond can be reduced Si-H bond, can be used as a linear polysiloxane end-capping agent, hydrophobic, is the preparation of organic silicon alkoxide and various types of polysiloxane products, including silicone oil, the most important intermediates such as silicone rubber and silicone resin have a wide range of uses and great economic value and application prospects. |