ヘキサメチルシクロトリシロキサン

Hexamethylcyclotrisiloxane

HCID 10914

基本情報

CAS
541-05-9
標準SMILES
C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O1
InChIKey
HTDJPCNNEPUOOQ-UHFFFAOYSA-N
分子式
C6H18O3Si3
平均分子量
222.46 g/mol
単同位体質量
222.05637403

概要

Hexamethylcyclotrisiloxane is an organosilicon compound.

名称と識別子

優先名称
Hexamethylcyclotrisiloxane
IUPAC
2,2,4,4,6,6-hexamethyl-1,3,5,2,4,6-trioxatrisilinane
現地名
ヘキサメチルシクロトリシロキサン
英語名
Hexamethylcyclotrisiloxane
分子式
C6H18O3Si3
分子量
222.46

名称と別名

HEXAMETHYLCYCLOTRISILOXANE541-05-9Cyclotrisiloxane, hexamethyl-Dimethylsiloxane cyclic trimerSDK 10DTXSID6027185EPV75L8O0RDC 246LS 8120DTXCID307185RefChem:786203208-765-4
名称をさらに表示
ヘキサメチルシクロトリシロキサン2,2,4,4,6,6-ヘキサメチル-1,3,5-トリオキサ-2,4,6-トリシラシクロヘキサンヘキサメチル-1,3,5-トリオキサ-2,4,6-トリシラシクロヘキサンヘキサメチルシクロヘキサントリシロキサン2,2,4,4,6,6-ヘキサメチルシクロヘキサントリシロキサン1,1,3,3,5,5-ヘキサメチルシクロトリシロキサン2,2,4,4,6,6-ヘキサメチル-2,4,6-トリシラ-1,3,5-トリオキサシクロヘキサン環状ポリアルキル(C1~20)シロキサンヘキサメチルシクロトリシロキサン, 97%CYCLOTRISILOXANEcyclotrisiloxane,hexamethyl-Hexamethylcyclotrisihexamethyl-cyclotrisiloxanDK813DK327CH7260
2,2,4,4,6,6-Hexamethyl-1,3,5,2,4,6-trioxatrisilinaneC6H18O3Si3MFCD00005943Simethicone Impurity 2S09550CCRIS 1326UNII-EPV75L8O0REINECS 208-765-4

データベース識別子

CAS
541-05-9
PubChem CID
10914
DTXSID
DTXSID6027185
ChEMBL
CHEMBL3182063
ChEBI
CHEBI:189167
UNII
EPV75L8O0R
EC Number
208-765-4
Nikkaji
J95.632E

物性

構造計算による物性

極性表面積
27.7 Ų
水素結合供与体数
0
水素結合受容体数
3
回転可能結合数
0
重原子数
12

実験および物理化学的性質

Chemical ClassesMetals -> Metalloid Compounds (Silicon)
CosmeticsSolvent; Hair conditioning; Emollient
SpringerMaterials PropertiesSchoenflies notation
Density1.12 @25 °C
Boiling Point134 °C @760 [mm Hg]
Melting Point64.5 °C

物理化学的性質

融点
50 · 50-64 °C (lit.)
沸点
134 °C · 134 °C (lit.)
比重(密度)
1.02 · 1.02
蒸気密度
1 · 1 (vs air)
蒸気圧
0.014 · 0.014-671Pa at 24.85-25℃
闪点
95 °F · 95 °F

化学的性質

化学的特性White crystalline solid

安全と法規制

GHS分類

GHS Classification · 5 件

This chemical does not meet GHS hazard criteria for 58.4% (479 of 820) of all reports.

Danger

H228 (41.6%): Flammable solid [Danger Flammable solids]

P210, P240, P241, P280, and P370+P378 (click each P-code to see the statement)

Aggregated GHS information provided per 820 reports by companies from 10 notifications to the ECHA C&L Inventory.

危険有害性情報

Regulatory Information · 4 件

Chemical: Cyclotrisiloxane, hexamethyl-

Cyclotrisiloxane, 2,2,4,4,6,6-hexamethyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Cyclotrisiloxane, 2,2,4,4,6,6-hexamethyl- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 16-12-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/14554

Cyclotrisiloxane, hexamethyl-: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.

Other Safety InformationIMAP assessments - Cyclic volatile methyl siloxanes: Environment tier II assessment
Hazards Summary · 1 件

A 28-day inhalation study of rats produced reduced motor activity, decreased seminal vesicle weight, and decreased litter size and number of implantation sites at 2,500 ppm; [EPA - TSCATS] A skin and strong eye irritant; [Alfa Aesar MSDS] See Octamethylcyclotetrasiloxane.

Hazard Classes and CategoriesFlam. Sol. 1 (41.6%)

安全と保護具

Protective Action Criteria (PAC) · 3 件

360 [mg/m3]

530 [mg/m3]

1600 [mg/m3]

安全データ

wgk
3
tsca
TSCA listed
ridadr
UN 1325 4.1/PG 2
hs_code
29319090
risk_code
11-36/37/38
化審法
(7)-475

化学と産業

用途と製造

U.S. Production2023: 1,000,000 - <5,000,000 lb
Industry UsesMonomers
Household ProductsInformation on 2 consumer products that contain Hexamethylcyclotrisiloxane in the following categories is provided:
Use ClassificationCosmetics -> Solvent; Hair conditioning; Emollient
General Manufacturing Information · 2 件

All Other Chemical Product and Preparation Manufacturing

Cyclotrisiloxane, 2,2,4,4,6,6-hexamethyl-: ACTIVE

応用分野 · 1 件

使用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 and fillers to render them hydrophobic. Hexamethylcyclotrisiloxane mainly used for products of methyl vinyl silicone rubber. It’s also the important raw materials for synthesizing other high polymers. It may be used as an effective trapping reagent for a variety of short-lived intermediates, including silanones and silyenes. Hexamethylcyclotrisiloxane has many unique characteristics.The reaction of It is more active, can be easily and quickly polymerized under lower temperature and simple catalysts. may be used to synthesize many kinds of organic silicone products, which have better stability, better insulation properties and better water resistance. may be used to synthesize silicon rubber, which may has better elasticity, better abrasive resistance, and better corrosive resistance. may be used to synthesize silicone oil, which may has lower freezing point and less surface tension, it is slightly affected by temperature. Hexamethylcyclotrisiloxane is flammable. Use and store with all precautions required for Flammable Materials. Care should be exercised in handling GP-685 to prevent contact with skin or eyes. Wear safety glasses with side shields and rubber gloves when handling.

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関連反応

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