Carbinol (Hydroxyl) Terminated Polydimethylsiloxane CAS#67674-67-3

CAS Number: 67674-67-3
Chemical Formula: (C2H4O)nC10H28O3Si3
Synonyms:

Organo-Modified Siloxane
Heptamethyltrisiloxane-polyoxyethylene allyl ether copolymer
MONOCARBINOL TERMINATED FUNCTIONAL POLYDIMETHYLSILOXANE, syMMetric, 35-40 cSt

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

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Product Details

Products Description of Carbinol (Hydroxyl) Terminated Polydimethylsiloxane CAS#67674-67-3

Alpha-[3-[1,3,3,3-tetramethyl-1-(trimethylsilyl-oxy)disiloxanyl]propyl-omega-hydroxypolyoxyethylene] is a specialized organosilicon compound featuring both siloxane and polyoxyethylene segments. This amphiphilic molecule (CAS 67674-67-3) typically appears as a colorless to pale yellow viscous liquid, with molecular weight ranging from 222.51 to 324.64 g/mol depending on the polyoxyethylene chain length. Its unique structure combines the hydrophobic properties of heptamethyltrisiloxane with the hydrophilic characteristics of polyoxyethylene, making it valuable as a surfactant and emulsifier in cosmetics, coatings, and textile applications. The compound demonstrates excellent surface activity, thermal stability, and compatibility with organic matrices, often serving as a key intermediate in silicone-polyether copolymer synthesis. Commercial grades typically offer 98-99% purity and are supplied in sealed containers to prevent moisture absorption.

Parameters

Melting point	0°C
Boiling point	0°C
density	1,02 g/cm³
refractive index	1.5580
Fp	0°C
Specific Gravity	1.02
Hydrolytic Sensitivity	4: no reaction with water under neutral conditions
EPA Substance Registry System	Poly(oxy-1,2-ethanediyl), .alpha.-[3-[1,3,3,3-tetramethyl-1-[(trimethylsilyl)oxy]disiloxanyl]propyl]-.omega.-hydroxy- (67674-67-3)

Product Application of Carbinol (Hydroxyl) Terminated Polydimethylsiloxane CAS#67674-67-3

Carbinol (Hydroxyl) Terminated Polydimethylsiloxane acts as a wetting agent. It is a silicone glycol surfactant that decreases the surface tension of water at low concentrations of 0.1%. It enhances the particle size distribution and allows the uniform coating of actives or film formers. It is mainly used in spray products.

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Molecular sieve 3A CAS#308080-99-1