1,1,3,3,5,5,7,7,9,9-Decamethylpentasiloxane

1,1,3,3,5,5,7,7,9,9-Decamethylpentasiloxane - Names and Identifiers

Name	1,1,3,3,5,5,7,7,9,9-Decamethylpentasiloxane
Synonyms	1,1,3,3,5,5,7,7,9,9-Decamethylpentasiloxane pentasiloxane, 1,1,3,3,5,5,7,7,9,9-decamethyl- Pentasiloxane, 1,1,3,3,5,5,7,7,9,9-decamethyl-
CAS	995-83-5
InChI	InChI=1/C10H32O4Si5/c1-15(2)11-17(5,6)13-19(9,10)14-18(7,8)12-16(3)4/h15-16H,1-10H3

1,1,3,3,5,5,7,7,9,9-Decamethylpentasiloxane - Physico-chemical Properties

Molecular Formula	C10H32O4Si5
Molar Mass	356.79
Boling Point	100°C / 20
Flash Point	109.3°C
Solubility	Benzene (Soluble), Chloroform (Slightly)
Vapor Presure	0.0238mmHg at 25°C
Appearance	Oil
Specific Gravity	0.8813
Color	Colourless
Storage Condition	4°C, Inert atmosphere
Sensitive	3: reacts with aqueous base
Refractive Index	1.3902

1,1,3,3,5,5,7,7,9,9-Decamethylpentasiloxane - Introduction

1,1,3,3,5,5,7,7,9, 9-Decamethylpentasilane is an organic silicon compound with the chemical formula C10H30O5Si5. It is a colorless and transparent liquid with low viscosity and low surface tension at room temperature.

This compound is mainly used as a solvent and lubricant. Its low surface tension allows it to be used as an ingredient in cleaners, coatings and lubricants to improve the gloss and smoothness of products. In addition, it can also be used in cosmetics and personal care products, such as skin creams, hair masks and shampoos, to play a role in softness and lubrication.

Preparation of 1,1,3,3,5,5,7,7,9,9-Decamethylpentasiloxane is usually obtained by ring, line polymerization and silylation of siloxane. The specific preparation method can be: firstly, the chlorinated methylsilane is formed into a cyclic structure by hydrolysis or acid catalysis, and then the cyclic structure is reacted with a silylating agent to obtain 1,1,3,3,5,5,7,7,9,9-Decameylpentasilooxane.

Regarding safety, 1,1,3,3,5,5,7,7,9,9, 9-Decamethylpentasiloxane is considered relatively safe under normal conditions of use. However, prolonged contact may cause skin irritation and direct contact with the skin and eyes should be avoided. When using or handling, it is recommended to wear appropriate personal protective equipment, such as gloves, goggles and protective clothing. If accidentally inhaled or swallowed, seek medical attention immediately.

Last Update：2024-04-09 21:54:55