Grundinformationen
- Standard-SMILES
C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O1- InChIKey
HTDJPCNNEPUOOQ-UHFFFAOYSA-N- Summenformel
- C6H18O3Si3
- Durchschnittliche Molmasse
- 222,46 g/mol
- Monoisotopische Masse
- 222,05637403
Überblick
Hexamethylcyclotrisiloxane is an organosilicon compound.
Namen und Bezeichner
- Bevorzugter Name
- Hexamethylcyclotrisiloxane
- IUPAC
- 2,2,4,4,6,6-hexamethyl-1,3,5,2,4,6-trioxatrisilinane
- Lokaler Name
- Hexamethylcyclotrisiloxan
- Englischer Name
- Hexamethylcyclotrisiloxane
- Summenformel
- C6H18O3Si3
- Molmasse
- 222.46
Namen und Synonyme
Weitere Namen anzeigen
Datenbank-Bezeichner
- CAS
541-05-9- PubChem CID
- 10914
- DTXSID
DTXSID6027185- ChEMBL
CHEMBL3182063- ChEBI
CHEBI:189167- UNII
- EPV75L8O0R
- EC Number
- 208-765-4
- Nikkaji
- J95.632E
Eigenschaften
Berechnete Struktureigenschaften
- Polarare Oberfläche (TPSA)
- 27,7 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 3
- Frei drehbare Bindungen
- 0
- Schwere Atome
- 12
- Formalladung
- 0
- Komplexität
- 139
Experimentelle und physikochemische Eigenschaften
Physical Description
CBI; Liquid
White solid; [EPA - TSCATS] Crystals; [Alfa Aesar MSDS]
Physikochemische Eigenschaften
- Schmelzpunkt
- 50 · 50-64 °C (lit.)
- Siedepunkt
- 134 °C · 134 °C (lit.)
- Dichte
- 1.02 · 1.02
- Dampfdichte
- 1 · 1 (vs air)
- Dampfdruck
- 0.014 · 0.014-671Pa at 24.85-25℃
- Flammpunkt
- 95 °F · 95 °F
- storage temp.
- Inert atmosphere,Room Temperature
- Löslichkeit
- soluble in most organic solvents.
- Aggregatzustand
- solid
- Wichte
- 1.02 · 1.02
- Farbe
- White to Almost white
- Wasserlöslichkeit
- may decompose
- BRN
- 1766829 · 1766829
- Henry's Law Constant
- 5.6 · 5.6×10-6 mol/(m3Pa) at 25℃, Mazzoni et al. (1997)
- Stabilität
- Stable, but moisture sensitive. Incompatible with strong oxidizing agents. Highly flammable.
- Major Application
- cleaning productscosmeticsenvironmentalfood and beveragespersonal care
- InChI
- 1S/C6H18O3Si3/c1-10(2)7-11(3,4)9-12(5,6)8-10/h1-6H3
- InChIKey
- HTDJPCNNEPUOOQ-UHFFFAOYSA-N
- SMILES
- C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O1
- LogP
- -0.38 · -0.38-4.4 at 20-25℃
- CAS Datenbank
- 541 · 541-05-9(CAS DataBase Reference)
- NIST chemische Informationen
- Hexamethylcyclotrisiloxane(541-05-9)
- EPA chemische Informationen
- Hexamethylcyclotrisiloxane (541-05-9)
Sicherheit und Regulatorisches
GHS-Klassifizierung
GHS Classification
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.
Gefahrenhinweise
Regulatory Information
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.
Hazards Summary
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.
Sicherheit und Schutzausrüstung
Protective Action Criteria (PAC)
360 [mg/m3]
530 [mg/m3]
1600 [mg/m3]
Sicherheitsdaten
- wgk
- 3
- tsca
- TSCA listed
- ridadr
- UN 1325 4.1/PG 2
- hs_code
- 29319090
- risk_code
- 11-36/37/38
- hazard_code
- F,Xi
- safety_code
- 26
- hazard_class
- 4.1
- packing_group
- II
- Speicherklasse
- 4.1B - Flammable solid hazardous materials
- Hazard Classifications
- Flam. Sol. 1
Chemie und Industrie
Verwendung und Herstellung
General Manufacturing Information
All Other Chemical Product and Preparation Manufacturing
Cyclotrisiloxane, 2,2,4,4,6,6-hexamethyl-: ACTIVE
Anwendungen
VerwendenHexamethylcyclotrisiloxane, 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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