Xinxiang Hongqi District Houyuan Chemical Co., Ltd.

Product Name: Hexamethyldisiloxane

Synonyms: os10;oxybis(trimethyl-silan;Oxybis(trimethylsilane);Silane, oxybis(trimethyl)-;sws-f221;SILICONE FLUID;2,2,4,4-TETRAMETHYL-3-OXA-2,4-DISILAPENTANE;HMDO

CAS: 107-46-0

MF: C6H18OSi2

MW: 162.38

EINECS: 203-492-7

Product Categories: Chemical Synthesis;Organometallic Reagents;Organosilicon;Intermediates & Fine Chemicals;Pharmaceuticals;Siloxanes;Si (Classes of Silicon Compounds);Silicon Compounds (for Synthesis);Si-O Compounds;Synthetic Organic Chemistry;Organics;API Intermediate

Mol File: 107-46-0.mol

Hexamethyldisiloxane Structure

Hexamethyldisiloxane Chemical Properties

Melting point −59 °C(lit.)

Boiling point 101 °C(lit.)

density 0.764 g/mL at 20 °C(lit.)

vapor density >1 (vs air)

vapor pressure 20 hPa (20 °C)

refractive index n20/D 1.377(lit.)

Fp 33 °F

storage temp. Flammables area

solubility 0.00037g/l insoluble

form liquid

Specific Gravity 0.76

explosive limit 0.5-21.8%(V)

Water Solubility insoluble

Hydrolytic Sensitivity 1: no significant reaction with aqueous systems

BRN 1736258

Stability: Stable, but moisture sensitive. Highly flammable. Incompatible with strong acids, strong bases, oxidizing agents.

InChIKey UQEAIHBTYFGYIE-UHFFFAOYSA-N

CAS DataBase Reference 107-46-0(CAS DataBase Reference)

NIST Chemistry Reference Disiloxane, hexamethyl-(107-46-0)

EPA Substance Registry System Hexamethyldisiloxane (107-46-0)

Safety Information

Hazard Codes F,N,T

Risk Statements 11-50/53-65-51/53-48/23/24/25-36/38-46-45

Safety Statements 16-61-62-45-26-53

RIDADR UN 1993 3/PG 2

WGK Germany 3

RTECS JM9237000

F 10

Autoignition Temperature 340 °C

TSCA Yes

HazardClass 3

PackingGroup II

HS Code 29310095

Hazardous Substances Data 107-46-0(Hazardous Substances Data)

Toxicity LD50 orally in Rabbit: > 12160 mg/kg LD50 dermal Rat > 2000 mg/kg