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Key Documents

8.18889

Sigma-Aldrich

Hexamethyldisilane

for synthesis

Synonym(s):

Hexamethyldisilane

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About This Item

Linear Formula:
(CH3)3SiSi(CH3)3
CAS Number:
1450-14-2
Molecular Weight:
146.38
MDL number:
MFCD00008258
UNSPSC Code:
12352103
EC Index Number:
215-911-0
NACRES:
NA.22

Quality Level

200

assay

≥98.0% (GC)

form

liquid

potency

2160 mg/kg LD50, oral (Rat)
2160 mg/kg LD50, skin (Rabbit)

mp

13-15 °C

transition temp

flash point -6 °C

density

0.73 g/cm3 at 20 °C

InChI

1S/C6H18Si2/c1-7(2,3)8(4,5)6/h1-6H3

InChI key

NEXSMEBSBIABKL-UHFFFAOYSA-N

Analysis Note

Assay (GC, area%): ≥ 98.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.726 - 0.728
Identity (IR): passes test
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2 - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

21.2 °F

flash_point_c

-6 °C

Certificates of Analysis (COA)

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