Product

1,3-DIPHENYL-1,1,3,3-TETRAMETHYLDISILOXANE

CAS No.：56-33-7

Other grades of this product :

1,3-DIPHENYL-1,1,3,3-TETRAMETHYLDISILOXANE Basic information

Product Name:	1,3-DIPHENYL-1,1,3,3-TETRAMETHYLDISILOXANE
Synonyms:	1,3-DIPHENYLTETRAMETHYLDISILOXANE;1,3-DIPHENYL-1,1,3,3-TETRAMETHYLDISILOXANE;1,1,3,3-tetramethyl-1,3-diphenyl-disiloxan;1,1,3,3-tetramethyl-1,3-diphenyl-Disiloxane;Diphenyltetramethyldisiloxane. 1,3-Diphenl-1,1,3,3-tetramethyl-disiloxane;Tetramethyldiphenyldisiloxane;1,3-diphenyl-1,1,3,3-tetramethyl-disiloxan;bis(dimethylphenylsilyl)ether
CAS:	56-33-7
MF:	C16H22OSi2
MW:	286.52
EINECS:	200-265-4
Product Categories:	Industrial/Fine Chemicals;Siloxanes
Mol File:	56-33-7.mol

1,3-DIPHENYL-1,1,3,3-TETRAMETHYLDISILOXANE Chemical Properties

Melting point	-89°C
Boiling point	155 °C
density	0.976
refractive index	1.52
Fp	156°C
storage temp.	2-8°C
form	liquid
color	Colorless to Almost colorless
Specific Gravity	0.976
λmax	259nm(Cyclohexane)(lit.)
Hydrolytic Sensitivity	1: no significant reaction with aqueous systems
CAS DataBase Reference	56-33-7(CAS DataBase Reference)
EPA Substance Registry System	Disiloxane, 1,1,3,3-tetramethyl-1,3-diphenyl- (56-33-7)

Safety Information

Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	24/25-36-26
RTECS	JM9236000
TSCA	Yes
HS Code	29319090

MSDS Information

1,3-DIPHENYL-1,1,3,3-TETRAMETHYLDISILOXANE Usage And Synthesis

Chemical Properties	Colorless or yellowish transparent liquid
Safety Profile	Experimental reproductive effects. When heated to decomposition it emits acrid smoke and irritating fumes.

1,3-DIPHENYL-1,1,3,3-TETRAMETHYLDISILOXANE Preparation Products And Raw materials

Raw materials	Chlorodimethylphenylsilane-->PHENYLDIMETHYLETHOXYSILANE-->CARBON DIOXIDE-->Dimethylphenylsilane-->Methyl 4-formylbenzoate-->Toluene-->4-Chlorobenzaldehyde
Preparation Products	3-(Trifluoromethyl)benzaldehyde-->1,3-Di(p-tolyl)-1,1,3,3-tetramethyldisiloxane, 97%-->DIMETHYLPHENYLSILANOL-->Formic acid-->Benzyl ether

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