CAS 541-02-6 Decamethylcyclopentasiloxane - Materials / Alfa Chemistry

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Decamethylcyclopentasiloxane

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Catalog Number

ACM541026

CAS Number

541-02-6

Product Name

Decamethylcyclopentasiloxane

Structure

Category

Salt

Synonyms

Cyclopentasiloxane, decamethyl-;DecaMethylcyclopentasiloxane;2,2,4,4,6,6,8,8,10,10-decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane;D5 Cyclomethicone;

Description

Decamethylcyclopentasiloxane (D5) is an organosilicon compound with the formula [(CH3)2SiO]5. It is a colorless and odorless liquid that is slightly volatile. The compound is classified as a cyclomethicone. Such fluids are commonly used in cosmetics, such as deodorants, sunblocks, hair sprays and skin care products. It is becoming more common in hair conditioners, as it makes the hair easier to brush without breakage. It is also used as part of silicone based personal lubricants. D5 is considered an emollient. In Canada, among the volume used in consumer products approximately 70% were for antiperspirants and 20% for hair care products.

IUPAC Name

Decamethylcyclopentasiloxane

Molecular Weight

370.77 g/mol

Molecular Formula

C10H30O5Si5

Boiling Point

101 °C

Melting Point

-44ºC

Flash Point

162 °F

Purity

≥99%

Density

0.958

Solubility

Insoluble in water.

Appearance

Liquid

Application

It widely used in cosmetics and body care products, Such as skin care, sunscreen,makeup, hair conditioning products, good compatibility with most of the alcohol and other cosmetic solvents. Be directly used as the carrier, the main raw material, also can be used as an additive; and be used in aqueous systems by the method of Emulsification.

Storage

Under the room temperature and away from light

EC Number

208-764-9

Exact Mass

370.09400

Hazard Statements

H413

Log P

3.59200

MDL Number

MFCD00046966

Packaging

10 g; 100 g;

Precautionary Statements

P501 : Dispose of contents/ container to an approved waste disposal plant.
P273 : Avoid release to the environment.
P264 : Wash skin thoroughly after handling.
P280 : Wear eye protection/ face protection.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Properties

Liquid

Refractive Index

1.396

Safety Description

S23-S24/25

Signal Word

Warning

Specific Gravity

0.96

Stability

Stable. Incompatible with strong oxidizing agents.