Product #: 500037


Formula Weight: 173.53 g/mol
CAS #: 102-24-9
EINECS: 203-016-8
Boranes Tmbx

1.216 g/ml

Melting Point

10-11 °C (dec)

Boiling Point

130 °C (Dissociates)

Flash Point

14 °C

Physical Properties
Physical Form
Colorless liquid
Trimethoxyboroxin (TMBX) is very soluble in aromatic hydrocarbons, ethers and chlorinated hydrocarbons.
Formulates with numerous solvents, easy to handle, safe and consistent quality. Epoxy resin curing agent. Excellent thermal insulation properties in coatings. Unique oxidation resistance properties in preceramic coating compositions. Metallocene co-catalyst. Borate source for ceramics and glass additives.
Analysis Method
Total boron titration for concentration, IR for hydroxyl content.
Storage & Shipping
Shelf Life
Four years in unopened, original packaging. Based upon like compounds.
Storage / Stability
Reacts readily with water to form boric acid and methanol. TMBX is extremely susceptible to hydrolysis. It reacts readily with atmospheric moisture upon exposure to air resulting in a decrease in purity.
  • Glass bottle containing 100 g
  • Glass bottle containing 500 g
  • 18 L steel drum, containing 22 Kg
  • 55 gallon drum, containing 225 Kg
  • UN1993, PG II, 3
  • Flammable liquid, n.o.s. (contains: triboron trimethyl hexaoxide)
Safety & Service
Health & Safety

See product MSDS

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

Concentrated, colorless liquid. High purity, high solubility, non-corrosive to metals. Custom Packaging and bulk quantities are available.