Poly(methylhydrosiloxane) CAS#63148-57-2

CAS Number: 63148-57-2
Chemical Formula: C7H22O2Si3
Synonyms:

DOW CORNING 1107 WATER REPELLENT AND POWDER TREATMENT
Poly(methylhydrosiloxane)
Poly(methylhydrosiloxane-co-dimethylsiloxane)

Appearance: Colorless Liquid

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

Poly(methylhydrosiloxane) CAS#63148-57-2

Poly(methylhydrosiloxane) is a reducing agent. For example, it can be used for the reduction of esters to alcohols as well as the reduction of aldehydes and ketone. It can also be used for the reduction of phosphine oxides to phosphine. Recent study has also used it for conjugate reduction of α, β-Unsaturated Carbonyl and Carboxyl Compounds. Finally, it is also used in greener amine synthesis mediated by reductive amination which is an alternative to borohydrides.

Poly(methylhydrosiloxane) Chemical Properties

Melting point	<-60°C
Boiling point	142 °C(lit.)
density	1.006 g/mL at 25 °C (lit.)
vapor pressure	38 hPa (20 °C)
refractive index	n20/D 1.382(lit.)
Fp	204 °C
storage temp.	Store below +30°C.
solubility	Soluble in most ethereal, chlorinated, or hydrocarbon solvents as well as EtOH, i-PrOH, warm DMF, and warm NMP; insoluble in MeOH, DMSO, acetonitrile, and water
form	liquid
Specific Gravity	0.98
PH	7 (H2O)
Appearance	Colorless to light yellow Liquid
Water Solubility	Not miscible or difficult to mix in water.
InChIKey	KZFYHEHDBPYRMU-UHFFFAOYSA-N
SMILES	[Si](C)(C)(C)C.[Si](O)(C)(C)C.[SiH](O)(C)C
CAS DataBase Reference	63148-57-2
EPA Substance Registry System	Siloxanes and Silicones, Me hydrogen (63148-57-2)

Safety Information

Hazard Codes	Xi
Risk Statements	10-36/37/38
Safety Statements	26-36-24/25-23-16
WGK Germany	3
F	10-21
TSCA	TSCA listed
HS Code	39100000
Storage Class	10 - Combustible liquids

Product Application Of Poly(methylhydrosiloxane) CAS#63148-57-2

Polymethylhydrosiloxane(PMHS) is an easily handled,inexpensive,non-toxic,and mild reducing agent. PMHS is attractive as a substitute for more expensive or hazardous silanes or siloxanes and as the stoichiometric reductant in catalytic organotin-mediated processes. It can be cross linked by metal catalyst at low temperature to form waterproof membrane. It is used as waterproof agent of textile, glass, pottery, paper, leather, metal, cement and marble etc, especially in textile waterproof. It is used as insulator and cross linker of paper. Poly(methylhydrosiloxane) is used in the reduction of esters to alcohols, catalyzed by a combination of titanocene dichloride and either n-BuLi or EtMgBr. It is a safer alternative to triethoxysilane, B22063, for reduction of phosphine oxides to phosphines, catalyzed by Ti(O-i-Pr)4. It is also used in greener amine synthesis by reductive amination as an alternative to borohydrides.

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