Boric acid

200

USP/NF, reag. ISO, reag. Ph. Eur.

2.6 mmHg ( 20 °C)

ACS reagent, puriss. p.a.

≥99.8%

powder or crystals

≤0.005% insoluble in methanol, ≤0.05% with methanol-HCl non-volat. matter

3.6-4.0 (20 °C, 4%)

160 °C (dec.) (lit.)

water: soluble

1.440 g/cm³

chloride (Cl^-): ≤3 mg/kg, phosphate (PO₄^3-): ≤5 mg/kg, sulfate (SO₄^2-): ≤5 mg/kg

As: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤1 mg/kg, Mg: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

OB(O)O

1S/BH3O3/c2-1(3)4/h2-4H

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