POLY(METHYLSILSESQUIOXANE)

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POLY(METHYLSILSESQUIOXANE) Chemical Properties

density 

1,08 g/cm3

refractive index 

1.42

Fp 

>121°C

solubility 

Insoluble in water.

form 

Solid

Specific Gravity

1.08

color 

Clear. White.

EPA Substance Registry System

Silsesquioxanes, Me (68554-70-1)

Safety Information

Risk Statements 

36/37/38

Safety Statements 

26-36/37/39

TSCA 

Yes

Product Overview

Poly(methylsilsesquioxane) (CAS 68554-70-1) is a silicone-based polymer resin with a three-dimensional siloxane structure. It is commonly supplied as a fine white powder and is insoluble in water. Known for its smooth texture, water repellency, and surface-modifying properties, it is widely used in cosmetic formulations and specialty material applications.

Poly(methylsilsesquioxane) (CAS 68554-70-1)

POLY(METHYLSILSESQUIOXANE) Chemical Properties

density 

1,08 g/cm3

refractive index 

1.42

Fp 

>121°C

solubility 

Insoluble in water.

form 

Solid

Specific Gravity

1.08

color 

Clear. White.

EPA Substance Registry System

Silsesquioxanes, Me (68554-70-1)

Safety Information

Risk Statements 

36/37/38

Safety Statements 

26-36/37/39

TSCA 

Yes

Safety and Storage

Store in a tightly sealed container in a cool, dry, and well-ventilated place. Protect the material from moisture, direct sunlight, and excessive heat. Avoid generating or inhaling dust during handling. Wear appropriate protective gloves, safety glasses, and protective clothing. Refer to the product-specific Safety Data Sheet (SDS) for detailed handling and emergency instructions.

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