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Hexamethylcyclotrisiloxane

Hexamethylcyclotrisiloxane structure

CAS No:
541-05-9
Formula:
C6H18O3Si3
Chemical Name:
Hexamethylcyclotrisiloxane
Synonyms:
Cyclotrisiloxane,2,2,4,4,6,6-hexamethyl-;Cyclotrisiloxane,hexamethyl-;2,2,4,4,6,6-Hexamethylcyclotrisiloxane;Dimethylsiloxane cyclic trimer;Hexamethylcyclotrisiloxane;SDK 10;LS 8120;D 3;1569492-97-2
Categories:
Cosmetic Ingredient > Dissolving Agent

Description

Hexamethylcyclotrisiloxane, also known as the six methyl siloxane, three is a white crystalline solid or liquid compound that has a variety of applications. Its appearance usually appears as a liquid state, with specific physical properties such as a density of 1.020 g/cm³, a melting point of 64.5°C, a boiling point of 134°C, a flash point of 95°F, and an refractive index of 1.418. It is worth noting that this compound may undergo a decomposition reaction in water, so special attention needs to be paid to moisture-proof measures during storage and avoid placing it in flammable areas to ensure safety. In terms of chemical properties, the vapor pressure of Hexamethylcyclotrisiloxane 3.53 mmHg, its vapor density compared with the air of 1. This substance is relatively low in reactivity and exhibits a long OH value (5.20e-13 cm³/molecule·sec), which makes it potentially useful for use in some industrial applications. Because of its unique structure and properties of Hexamethylcyclotrisiloxane has been widely used in many fields. Specifically, Hexamethylcyclotrisiloxane is often used in cosmetics industry, because it can provide good lubrication and protection effect, make the skin and hair more smooth and soft. In addition, it also has important applications in the field of lubricants, which can provide excellent lubrication properties, reduce friction, and extend the service life of equipment. In the field of industrial chemicals, Hexamethylcyclotrisiloxane also plays an important role, for example as raw materials or intermediates, used in the production of various kinds of silicon-based materials and specialty chemicals. Because of its unique chemical and physical properties, Hexamethylcyclotrisiloxane has an irreplaceable position in these areas.

Hexamethylcyclotrisiloxane Basic Attributes

Molecular Weight：

222.46

Exact Mass：

222.46

BRN：

1766829

EC Number：

208-765-4

UNII：

EPV75L8O0R

DSSTox ID：

DTXSID6027185

HScode：

2931900001

Characteristics

PSA：

27.7

XLogP3：

2.15520

Appearance：

Liquid; OtherSolid

Density：

1.020 g/cm³

Melting Point：

64.5 °C

Boiling Point：

134 °C

Flash Point：

95 °F

Refractive Index：

1.418

Water Solubility：

H2O: may decompose

Storage Conditions：

Flammables area

Vapor Pressure：

3.53 mmHg

Vapor Density：

1 (vs air)

OH：

5.20e-13 cm3/molecule*sec

Safety Information

Packing level：

Ⅱ

Hazard category：

4.1

Transport codes：

UN 1325 4.1/PG 2

wgk germany：

hazard class code：

11-36/37/38

safety instructions：

RTECS Number：

GZ4705000

Marks：

F,Xi

Stability/Shelf Life：

Stable, but moisture sensitive. Incompatible with strong oxidizing agents. Highly flammable.

Precautionary statement(s)：

P210

Hazard Statements：

H228

GHS Classification：

|Warning|H228 (100%): Flammable solid [Danger Flammable solids]|P210, P240, P241, P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P370+P378, P403+P233, P405, and P501|Aggregated GHS information provided by 728 companies from 11 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Drug Information

MeSH Entry Terms：

hexamethylcyclotrisiloxane

Hexamethylcyclotrisiloxane Use and Manufacturing

Uses

Hexamethylcyclotrisiloxane, is the simplest member of a series of cyclic oligodimethylsiloxanes, primarily used as synthetic equivalents for the reactive interme- diate dimethylsilanone. It is one of the main raw materials for silicone products. It is widely used in aviation, military industry, medicine and petrochemicals etc. Hexamethylcyclotrisiloxane undergoes ring-opening anionic polymerization reactions, suggesting use in polymer synthesis. It is also suggested for the treatment of powders

Production

10,000,000 - 50,000,000 lb

Manufacturing Info：

All other basic organic chemical manufacturing|Cyclotrisiloxane, 2,2,4,4,6,6-hexamethyl-: ACTIVE

Use Classification：

Cosmetics -> Emollient; Hair conditioning; Solvent

Computed Properties

Molecular Weight:222.46
Hydrogen Bond Acceptor Count:3
Exact Mass:222.05637404
Monoisotopic Mass:222.05637404
Topological Polar Surface Area:27.7
Heavy Atom Count:12
Complexity:139
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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Guide of Hexamethylcyclotrisiloxane

Description
Basic Attributes
Characteristics
Safety Information
Drug Information
Use and Manufacturing
Computed Properties
Recommended Suppliers
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