Trimethylsilanol , ≥95.0%(GC) , 1066-40-6

Synonym(s):
Hydroxytrimethylsilane;TMS;TMSiOH

CAS NO.：1066-40-6

Empirical Formula: C3H10OSi

Molecular Weight: 90.2

MDL number: MFCD02751657

EINECS: 213-914-1

PRODUCT Properties

• Melting point: -4.5 °C
• Boiling point: 90℃/760Torr
• Density: 0.950
• vapor pressure: 19-55hPa at 25℃
• refractive index: 1.3889
• Flash point: 4°(39°F)
• storage temp.: Sealed in dry,Store in freezer, under -20°C
• solubility: Chloroform (Sparingly), DMSO (Sparingly), Ethyl Acetate (Slightly), Methanol (Slightly)
• form: liquid
• pka: 12.67±0.58(Predicted)
• Specific Gravity: 0.8139
• color: Clear, colourless
• Water Solubility: Soluble in water (1.00 mg/ml).
• Hydrolytic Sensitivity: 4: no reaction with water under neutral conditions
• BRN: 1361356
• LogP: 1.19-5.06 at 20-25℃
• NIST Chemistry Reference: Silanol, trimethyl(1066-40-6)
• EPA Substance Registry System: Silanol, trimethyl- (1066-40-6)

Description and Uses

Trimethylsilanol has strong acidity compared with the corresponding carbon alcohols, can react with tetrahydrolithium aluminum, Si-OH bond can be reduced Si-H bond, can be used as a blocking agent for straight-chain polysiloxanes with hydrophobicity, it is the most important intermediate in the preparation of organosilicon alcohol salts and all kinds of polysiloxanes products including silicone oils, silicone rubbers and silicone resins, etc, and it has a wide range of application prospects.

Trimethylsilanol used as a hydrophobic coat on silicate surfaces. Used as an as an antimicrobial agent.

Safety

• Symbol(GHS): GHS02,GHS07
• Signal word: Danger
• Hazard statements: H225-H332-H412
• Precautionary statements: P210-P233-P240-P241-P273-P304+P340+P312
• Hazard Codes: F
• Risk Statements: 11
• RIDADR: UN 1993BF 3 / PGII
• WGK Germany: 1
• TSCA: Yes
• HazardClass: 3
• HS Code: 29319090