Product #: 300017
STA/THF 35%
Formula:

C5H11NaO


Formula Weight: 110.13 g/mol
CAS #: 11593-46-5
EINECS: 238-639-4
Alcoholate Sta
Density

0.926 g/ml @ 22 °C

Physical Properties
Physical Form
Liquid
Appearance
Yellow to amber solution
Solubility
Sodium tert.-amylate (STA) is highly soluble in hydrocarbons and ethers. STA is commercially available in t-amyl alcohol, tetrahydrofuran, toluene and hexanes.
Application
Moderately strong base for deprotonations or base catalyzed reactions. Excellent reagent for the formation of block copolymers. Used as a polar modifier for solution styrene-butadiene rubber and other anionic polymerizations.
Analysis Method
Base titration for concentration. Modified Karl Fisher for hydroxide/carbonate content
Storage & Shipping
Shelf Life
Four years in unopened, original packaging. Based upon like compounds.
Storage / Stability
STA reacts readily with water to form sodium hydroxide and 2-methyl-2-butanol. STA also absorbs carbon dioxide from the air.
Packaging
  • 32oz. glass bottle containing 500 g STA, 35% in THF
  • 5 gallon drum containing 15 Kg STA, 35% in THF
  • 55 gallon drum containing 175 Kg STA, 35% in THF
Shipping
  • UN2924, PGII, 3(8)
  • Flammable Liquids, Corrosive, n.o.s. (contains: sodium 2-methylbutan-2-olate, 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

Soluble in ethers and hydrocarbons, non-corrosive to metals. Available in solution in THF, Toluene, Hexanes, tert.-amyl alcohol. Custom packaging and bulk quantities available.