Diphenylsilanediol
- CAS NO.：947-42-2
- Empirical Formula: C12H12O2Si
- Molecular Weight: 216.31
- MDL number: MFCD00002101
- EINECS: 213-427-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 05:36:22
What is Diphenylsilanediol?
Description
Diphenylsilanediol is a chemical compound that is used as a catalyst. It can be produced by the reaction of diphenylsilane with sulfuric acid. This chemical has been shown to have high thermal and chemical stability, making it an ideal material for catalytic materials. Diphenylsilanediol has also been shown to be an efficient solid catalyst for synthesizing hydrocarbons from hydrogen fluoride and hydrochloric acid. The efficiency of this catalyst may be due to its ability to reduce the activation energy required for the reaction. Diphenylsilanediol is an important material used to manufacture silicone resins and rubbers. In addition, it is helpful as an additive for organopolysiloxanes that are convertible to the cured solid.
Chemical properties
White powder
The Uses of Diphenylsilanediol
Diphenylsilanediol is used in Medicine field, electronics industry and polymer material.
Preparation
Diphenylsilanediol was obtained by controlled hydrolysis of diphenyldichlorosilane in the presence of aniline as acid acceptor and ethyl ether .
General Description
Diphenylsilanediol(DPSD) is an alkoxysilane that is used as a silane based precusor in the synthesis of organosiloxane based resins.
Flammability and Explosibility
Non flammable
Purification Methods
Recrystallise it from CHCl3/methyl ethyl ketone. [Beilstein 16 IV 1523.]
Properties of Diphenylsilanediol
| Melting point: | 144-147 °C |
| Boiling point: | 353°C [760mmHg] |
| Density | 0.87 |
| vapor density | >1 (vs air) |
| vapor pressure | 0Pa at 25℃ |
| Flash point: | 129 °F |
| storage temp. | Inert atmosphere,Room Temperature |
| form | Powder |
| pka | 12.06±0.53(Predicted) |
| color | white |
| Water Solubility | reacts |
| Sensitive | Air & Light Sensitive |
| Hydrolytic Sensitivity | 4: no reaction with water under neutral conditions |
| BRN | 2523445 |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. |
| CAS DataBase Reference | 947-42-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Diphenyl silanediol(947-42-2) |
| EPA Substance Registry System | Silanediol, diphenyl- (947-42-2) |
Safety information for Diphenylsilanediol
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02 |
| GHS Hazard Statements |
H228:Flammable solids |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. |
Computed Descriptors for Diphenylsilanediol
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