7680. Potassium Tetraborate

Nomenclature

CAS number: 1332-77-0
Potassium biborate; potassium borate.
B4K2O7; mol wt 233.44.
B 18.52%, K 33.50%, O 47.98%.
K2B4O7.

Derivative

Pentahydrate.

Properties

White, cryst powder. Sol in 4 parts water, slightly in alc.