Sodium tetraboric acid standard titers (fixed), Zaporizhia region.

Sodium tetraboronic standard titers (fixed samples).
Standard titers Sodium tetraboronic acid application(//tractor-service.com)
A solution prepared from standard titers Sodium tetraboronic acid is used in chemical analysis to standardize solutions of HCl, H2SO4, and HNO3 acids and determine their concentration.
Under the condition of storage at a temperature not higher than 25°С without access to carbon dioxidecarbon dioxide, the solutions can be used repeatedly, until cloudy, within several weeks.
Learned from fixanal Sodium tetraboronic solution has a precisely established volume and molar concentration equivalent to 0.100+0.001 mol/dm3. of activity