It is used in textile finishing as a
component of sizing, scouring compositions, adhesives,
and detergents. It is also used in photography and
agriculture.
Production Methods
Sodium metaborate dihydrate may be made by heating a
slurry of the tetrahydrate above 54°C, by crystallizing
metaborate solutions at 54–80°C or by dehydrating the tetrahydrate in vacuum.