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Heptamethyl Trisiloxane

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Formula: C7H22O2Si3
CAS: 1873-88-7
search Element: heptamethyl trisiloxane
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Identification

Structural Formula
Heptamethyl Trisiloxane
CAS:
1873-88-7
EINECS:
217-496-1
Molecular Formula:
C7H22O2Si3
MDL:
MFCD00048000
Synonym:
bis(trimethylsiloxy) ; methylbis(trimethylsiloxy)silane ; 3h-heptamethyltrisiloxane ; bis(trimethylsiloxy)methylsilane ; methylbis(trimethylsilyloxy)silane ; 40m25) ; 40m40,commercialgrade ; bis-(trimethylsilyloxy)-methylsilane ; 1,1,1,3,5,5,5-heptamethyltrisiloxane ; 1,1,1,3,5,5,5-heptamethyl-trisiloxan




Suppliers

Evonik ( formerly Wilshire Technologies, Inc. )
E22088832
Simagchem Corporation
SC9662898
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Chemos GmbH & Co. KG
CC9202760
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Prices & Availability




Data is processed


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Properties for Heptamethyl Trisiloxane

Molecular Weight:
222.5 g·mol−1
Density:
0.819 g/mL at 25 °C(lit.)
Melting point:
<0 °C
Boiling point:
142 °C(lit.)
Flash point:
82 ºF
Physical Description:
colourless liquid
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Hazard Statements

GHS02

GHS02
Flammable
  • Flammable gases, category 1
  • Flammable aerosols, categories 1, 2
  • Flammable liquids, categories 1, 2, 3
  • Flammable solids, categories 1, 2
  • Self-reactive substances and mixtures, types B, C, D, E, F
  • Pyrophoric liquids, category 1
  • Pyrophoric solids, category 1
  • Combustible solids, category 3
  • Combustible liquids, category 3
  • Self-heating substances and mixtures, categories 1, 2
  • Substances and mixtures, which in contact with water, emit flammable gases, categories 1, 2, 3
  • Organic peroxides, types B, C, D, E, F
GHS07

GHS03
Harmful
  • Acute toxicity (oral, dermal, inhalation), category 4
  • Skin irritation, categories 2, 3
  • Eye irritation, category 2A
  • Skin sensitization, category 1
  • Specific target organ toxicity following single exposure, category 3
    - Respiratory tract irritation
    - Narcotic effects
    • Not used
  • with the "skull and crossbones" pictogram
  • for skin or eye irritation if:
  • the "corrosion" pictogram also appears
  • the "health hazard" pictogram is used to indicate respiratory sensitization

Safety & Transport Information

Risk Codes:
R10 - Flammable
R36/37/38 - Irritating to eyes, respiratory system and skin
Safety Codes:
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S36 - Wear suitable protective clothing
Hazard Symbols:
Xi
Hazard symbol Xi
RID/ADR certification :
UN 1993 3 / PG 2
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Alternative Distributors of [Heptamethyl Trisiloxane]

Producers or manufacturers change the product range from time to time. The following companies
have appeared as suppliers in the past / currently not verified

Rongkang Industry Co.,Ltd - (NSTU Chemicals Hanggzhou Co.,) | Shanghai Qunyue Chemical Co., Ltd. | Wanko Chemical Co., Ltd.

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