Product #: 300004
KHMDS/TOLUENE 15%
Formula:

C6H18KNSi2


Formula Weight: 199.49 g/mol
CAS #: 40949-94-8
EINECS: Not Listed
Alcoholate Khmds
Density

0.876 g/ml for 15 wt% in Toluene

Boiling Point

110°C for Toluene

Flash Point

-21.6 °C

Physical Properties
Physical Form
Liquid
Appearance
Colorless to amber liquid
Solubility
Potassium hexamethyldisilazane is soluble in aromatic hydrocarbons and ethers. KHMDS is also available as a THF Solution.
Application
Strong base for deprotonations or base catalyzed reactions. Base for Wittig reactions. Superbase component, used with alkyl lithium.
Analysis Method
Base titration for concentration. Modified Karl Fisher for hydroxide/carbonate content. GC for isoprene content.
Storage & Shipping
Shelf Life
Four years in unopened, original packaging. Based upon stability testing.
Storage / Stability
Reacts readily with water to form potassium hydroxide and hexamethyldisilazane (HMDS). HMDS will further hydrolyze, generating ammonia. KHMDS can hydrolyze upon exposure to moist air forming a cloudy solution. KHMDS reacts with CO2.
Packaging
  • 32 oz bottle containing 500 g KHMDS solution
  • 5 gallon drum containing 15 Kg KHMDS 15% in Toluene
  • 55 gallon drum containing 160 Kg KHMDS 15% in Toluene
Shipping
  • UN2920, PG I, 8(3)
  • Corrosive liquid, flammable, n.o.s. (contains: potassium hexamethyldisilazane, toluene)
Safety & Service
Health & Safety

See product MSDS

Technical Service
Available for all Callery products. Please contact your local representative for more details.
Notes
Product Notes

High concentration, non-corrosive, custom packaging available.

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