Product #: 300014
NAHMDS/THF 40%
Formula:

C6H18NNaSi2


Formula Weight: 183.38 g/mol
CAS #: 1070-89-9
EINECS: 213-983-8
Alcoholate Nahmds
Density

0.894 g/ml for 40 wt% in THF

Boiling Point

66°C for THF

Flash Point

-31.1 °C

Physical Properties
Physical Form
Liquid
Appearance
Yellow to brown liquid
Solubility
Sodium hexamethyldisilazane (NaHMDS) is soluble in aromatic hydrocarbons and ethers.
Application
Strong base for deprotonations or base catalyzed reactions, kinetic enolate formation, superbase component, used with alkyl lithium, base for Wittig reactions.
Analysis Method
Purity based upon titration. Hydroxide/carbonate based upon Modified Karl Fisher. Isoprene content by GC.
Storage & Shipping
Shelf Life
Four years in the unopened, original packaging.
Storage / Stability
Reacts readily with water to form sodium hydroxide and hexamethyldisilazane. NaHMDS can hydrolyze upon exposure to moist air forming a cloudy solution. NaHMDS reacts with CO2.
Packaging

Packaging 32oz. glass bottle containing:

  • 500 g NaHMDS, 40% in THF
  • 5 gallon drum containing 15 Kg NaHMDS, 40% in THF
  • 55 gallon drum containing 160 Kg NaHMDS, 40% in THF
Shipping
  • UN2920, PGII, 3(8)
  • Corrosive liquid, flammable, n.o.s. (contains: sodio-hexamethyldisilazane, 2-methyl-2-butene, tetrahydrofuran)
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. At temperatures below -5 °C, NaHMDS can precipitate from solution.

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