Skip to Content
Merck
CN
All Photos(1)

Documents

Safety Information

1.12186

Supelco

1,1,1,3,3,3-Hexamethyldisilazane

for gas chromatography

Sign Into View Organizational & Contract Pricing
All Photos(1)
Synonym(s):
1,1,1,3,3,3-Hexamethyldisilazane, Bis(trimethylsilyl)amine, HMDS
Empirical Formula (Hill Notation):
C6H19NSi2
CAS Number:
999-97-3
Molecular Weight:
161.39
MDL number:
MFCD00008259
UNSPSC Code:
12352103
EC Index Number:
213-668-5
NACRES:
NA.05

vapor pressure

20 hPa ( 20 °C)

Quality Level

100

Assay

≥98.5% (GC)

form

liquid

autoignition temp.

325 °C

potency

847 mg/kg LD50, oral (Rat)
550 mg/kg LD50, skin (Rabbit)

expl. lim.

0.8-25.9 % (v/v)

kinematic viscosity

0.9 cSt(25 °C)

bp

126 °C/1013 mbar

mp

-82 °C

transition temp

flash point 15 °C

density

0.78 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C6H19NSi2/c1-8(2,3)7-9(4,5)6/h7H,1-6H3

InChI key

FFUAGWLWBBFQJT-UHFFFAOYSA-N

Analysis Note

Appearance of substance (colour): colourless
Assay (GC, area%): ≥ 98.5 % (a/a)
Identity (IR): passes test

Pictograms

FlameSkull and crossbones
GHS02,GHS06

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

52.5 °F - closed cup

Flash Point(C)

11.4 °C - closed cup

Regulatory Information

危险化学品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service