Borax Pentahydrate 5 Mol [Na2B4O7.5H2O] [CAS_11130-12-4] Technical Standard, White, Granular (55.12 Lbs Bag)

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

Packing