Diphenylsilanediol Chemical Properties

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.

LogP

2 at 20℃

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

Hazard Codes 

F

Risk Statements 

11-10

Safety Statements 

16-22-24/25-37-26

RIDADR 

UN 1325 4.1/PG 3

WGK Germany 

1

RTECS 

VV3640000

TSCA 

Yes

HazardClass 

4.1

PackingGroup 

III

HS Code 

29319090

MSDS

• Language:English Provider:Dihydroxydiphenylsilane
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

Diphenylsilanediol Usage And Synthesis

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

Uses

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.]

Diphenylsilanediol(947-42-2)Related Product Information

• Diphenyldimethoxysilane
• 3,4'-DIAMINODIPHENYLMETHANE
• 1,5-Diphenylcarbazide
• Diphenylsilane
• 1,3-Diphenyl-2-thiourea
• Dichlorodiphenylsilane
• Chlorodiphenylphosphine
• Benzhydrol
• 1,1,3,3-Tetramethyltetraphenylcyclotetrasiloxane
• Octaphenylcyclotetrasiloxane
• Diphenyldiethoxysilane
• Diphenylsilanediol diacetate
• Hexaphenylcyclotrisiloxane
• 3,3-DIPHENYLHEXAMETHYLTRISILOXANE
• Diphenyl sulfone
• Phenylsilane
• 1,5-DIVINYL-3,3-DIPHENYL-1,1,5,5-TETRA-METHYLTRISILOXANE
• DIETHOXYBIS(4-PERFLUOROTOLYL)SILANE