Product #: 300016


Formula Weight: 110.13 g/mol
CAS #: 11593-46-5
EINECS: 238-639-4
Alcoholate Sta
Physical Properties
Physical Form
White to off-white powder
Sodium tert.-amylate (STA) is highly soluble in hydrocarbons and ethers. STA is commercially available in t-amyl alcohol, tetrahydrofuran, toluene and hexanes.
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
One year in unopened, original packaging. Based upon like compounds. Additional stability information can be determined on request
Storage / Stability
STA reacts readily with water to form sodium hydroxide and 2-methyl-2-butanol. STA also absorbs carbon dioxide from the air.
  • 16 oz. bottle, containing 500g
  • 5 gallon drum, containing 10 Kg
  • 30 gallon drum, containing 50 Kg
  • UN3206, PGII, 4.2(8)
  • Alkali metal alcoholates, self-heating, corrosive, n.o.s. (contains: sodium 2-methylbutan-2-olate)
Safety & Service
Health & Safety

See product MSDS

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

Note 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.