1.12186
1,1,1,3,3,3-Hexamethyldisilazane
for gas chromatography
Synonym(s):
1,1,1,3,3,3-Hexamethyldisilazane, Bis(trimethylsilyl)amine, HMDS
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About This Item
vapor pressure
20 hPa ( 20 °C)
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
Assay (GC, area%): ≥ 98.5 % (a/a)
Identity (IR): passes test
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signalword
Danger
Hazard Classifications
Acute Tox. 3 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Flam. Liq. 2
Storage Class
3 - Flammable liquids
wgk
WGK 2
flash_point_f
52.5 °F - closed cup
flash_point_c
11.4 °C - closed cup
Regulatory Listings
Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.
Flammable liquids + Type 1 petroleums + Hazardous rank II + Water insoluble liquid
fsl
Substances Subject to be Indicated Names
ishl_indicated
Substances Subject to be Notified Names
ishl_notified
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’.
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