BORAX 5 MOL

BORAX 5 MOL

WCode: 02-010-1
CAS No.: 12179-04-3
Molecular Formula: Na₂B₄O₇.5H₂O
Formula Weight: 291.35

Sales Specification

Appearance: White, granular, crystalline solid
Grades: Technical Standard
Pentahydrate Borax (Na₂B₄O₇.5H₂O): 101.5%-103.5%
Anhydrous Borax (Na₂B₄O₇): 70.8%-71.5%
Boric Oxide (B₂O₃): 48.5%-49.5%
Sodium Oxide (Na₂O): 21.6%-22.0%
Water of Crystallization (H2O): 28.5%-29.9%
Chloride (Cl): 600ppm
Sulfate (Na₂SO₄): 300ppm
Iron (Fe): 15ppm

pH in Water at 20°C(68°F):

Weight 0.1%: pH 9.25
Weight 0.5%: pH 9.24
Weight 1.0%: pH 9.24
Weight 2.0%: pH 9.25
Weight 3.0%: pH 9.29
Weight 3.74%(Saturation): pH 9.30

Physical And Chemical Properties

Specific Gravity 25°C: 1.815
Specific Heat 25°C: 96.3 cal/deg-mol
Heat of Solution (Absorbed) 25°C: -13.03 Kcal/g-mol or -51.71 Btu
Heat of Formation: -1147.8 Kcal/g-mol or -4555.0 Btu

Packing

In 25KG bags; 42bags/pallet