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  • 8.03452 - Dichlorodimethylsilane

8.03452 EMD Millipore


Dichlorodimethylsilane for synthesis. CAS 75-78-5, chemical formula (CH₃)₂SiCl₂., for synthesis

Synonym: Dimethyldichlorosilane

  • CAS Number 75-78-5

  • Linear Formula C₂H₆Cl₂Si

  • Molecular Weight 129.06 g/mol

  •  EC Number 200-901-0



packaging   250 ml in Glass bottle (8034520250)
bp   70 °C (1013 hPa)
expl. lim.     1.75 - 48.5 %(V)
vapor pressure   <200 hPa (20 °C)
density   1.07 g/cm3 (25 °C)
flash point   -5 °C
autoignition temp.   425 °C
mp   -76 °C
LD 50 oral   LD50 Rat 6056 mg/kg
shipped in   ambient
storage temp.   Store below +30°C.
specifications   Assay (GC, area%): ≥ 98.0 % (a/a)
  Identity (IR): passes test

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Safety Information

HS Code 
2931 90 00
Hazard Statement(s) 
H225: Highly flammable liquid and vapour.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H335: May cause respiratory irritation.
Precautionary Statement(s) 
P210: Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Storage class 
3 Flammable liquids
WGK 1 slightly water endangering
Liquid inorganic halides and hydrolysis-sensitive reagents can be carefully stirred dropwise into ice-cool 10% sodium hydroxide solution (Cat. No. 105587) (caution: caustic gases!); container D or E.
Hazard Pictogram(s) 
GHS02  GHS02
Hazard Pictogram(s) 
GHS07  GHS07
Hazard Symbols 
Flammable  Flammable
Hazard Symbols 
Irritant  Irritant
Declaration (railroad and road) ADR, RID 
UN 1162 , 3 (8), II
Declaration (transport by air) IATA-DGR 
UN 1162 , 3 (8), II
Declaration (transport by sea) IMDG-Code 
UN 1162 , 3 (8), II
Categories of danger 
highly flammable, irritant
R Phrase 
R 11-36/37/38
Highly flammable.Irritating to eyes, respiratory system and skin.
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