Disodium Octaborate Tetrahydrate

Disodium Octaborate Tetrahydrate

Di Sodium Octaborate Tetrahydrate is a fine, white, non-crystalline powder. It has higher Boron content compared toBorax Decahydrate & Pentahydrate. It is hygroscopic in nature and mildly alkaline.

Other Names
Di sodium tetraborate tetrahydrate
Chemical Formula
Na2B8O13.4H2O
CAS No
12280-03-4
Molar Mass
412.52 g/mol
TEST RESULT
Appearance WhiteNon- Crystalline Powder
Boron Content (As B2O3) 67.50 %
Matter In soluble In Water 1 % - max
Bulk Density (Loose) 320 - 480 kg/m3
Particle Size 150 mesh (BSS)
80 % min
Solubility In Water (At 50 °C) 9.70 %
pH 3 % Solution (At 20 °C) 8.3
pH 10 % Solution (At 20 °C) 7.6

Applications:

Disodium Octaborate Tetrahydrate is used as a wood preservative as it is diluted and sprayed on wood surfaces to kill termites, beetles, fungi and algae.

Wood treated with tetrahydrate is not suitable for ground contact and outdoor applications and should be protected with a water repellent coating when used for exterior applications like door, window frames, etc.