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Borax Tech (sodium tetraborate)

GOST 8429-77 grade A

Appearance:

free-flowing, white or colorless crystalline product.

Formula:

Na2B4O7 ·Х H2O

Application:

used in the production of nonferrous metals, porcelain ware, in the manufacture of enamels and glazes, sanitary products, in the process of wire drawing, consisting of welding fluxes and solders.

Application:

used in the production of nonferrous metals, porcelain ware, in the manufacture of enamels and glazes, sanitary products, in the process of wire drawing, consisting of welding fluxes and solders.

Borax Tech (sodium tetraborate)

GOST 8429-77 grade A

Specification:

Mass fraction (Na2B4O7 · 10H2O),% not less	99,5
Mass fraction of residue is not soluble in water,%, not less	0,04
Mass fraction of carbonate,%, not more	0,1
Sulfate (SO4),%, not more	0,1
Mass fraction of heavy metals (Pb),%, not more	0,005
Arsenic (As),%, not more	0,001

Bura has a different name - Tetraborate sodium.

In nature it is represented as a large quantity of minerals:

with a similar name - borax, or otherwise Tinkal or Borax - 10 water.
mineral Kernite - 4 water.
A large number of different Borates, in which there are other metals along with sodium.
The compounds (crystalline hydrates) that fall out during the drying of some water bodies (in Turkey and the USA)