Borax Pentahydrate — ETiBOR-48 (Technical Grade, Granular)

ETiBOR-48 is Eti Maden’s technical grade borax pentahydrate powder — one of the most widely used refined boron compounds in global industry. With a B₂O₃ content of 47.80–49.00% and a purity equivalent of 100.00–102.51% Na₂B₄O₇ · 5H₂O, it delivers consistent, high-performance boron chemistry across a broad range of industrial processes. The controlled powder gradation — with a maximum of 50% passing 0.075 mm — ensures reliable dissolution rates and uniform dispersion in batch manufacturing. Its exceptionally low iron content of just 3 ppm and water insolubles below 150 ppm make it suitable even for processes sensitive to trace metallic contamination.

Product Specification

ETiBOR-48  ·  Borax Pentahydrate
Technical Grade, Powder
Na₂B₄O₇ · 5H₂O  ·  Disodium Tetraborate Pentahydrate
CAS No.
12179-04-3
EC No.
215-540-4
Rev.
2026/00
Chemical Specification
ComponentContent
B₂O₃47.80 – 49.00%
Equivalent Na₂B₄O₇ · 5H₂O100.00 – 102.51%
Na₂O21.36 – 21.81%
SO₄200 ppm max.
Cl (Chloride)70 ppm max.
Fe (Iron)3 ppm max.
Insolubles in Water150 ppm max.
Particle Size Specification
SizeContent
+ 1.180 mm2.00% max.
− 0.075 mm50.00% max.