Boric acid - puriss. p.a. - ACS reagent - reag. ISO - reag. Ph. Eur. - buffer substance - more than or equal to 99.8%

Code: 31146-500gsig D2-231

General description

Boric acid is a very weak acid, having pH in the range of 3.6-4.0. Coulometric method for the determination of boric acid has been reported.

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agency	reag. ISO, USP/NF, reag. Ph. Eur.
anion traces	chloride (Cl^-): ≤3 mg/kg, phosphate (PO₄^3-): ≤5 mg/kg, sulfate (SO₄^2-): ≤5 mg/kg
assay	≥99.8%
cation traces	Fe: ≤1 mg/kg, As: ≤5 mg/kg, Mg: ≤5 mg/kg, Ca: ≤10 mg/kg, Pb: ≤5 mg/kg, Cu: ≤5 mg/kg, Zn: ≤5 mg/kg, Cd: ≤5 mg/kg
density	1.440 g/cm³
form	powder or crystals
grade	puriss. p.a., ACS reagent
impurities	≤0.005% insoluble in methanol, ≤0.05% with methanol-HCl non-volat. matter
InChI key	KGBXLFKZBHKPEV-UHFFFAOYSA-N
InChI	1S/BH3O3/c2-1(3)4/h2-4H
mp	160 °C (dec.) (lit.)
pH	3.6-4.0 (20 °C, 4%)
Quality Level	200
SMILES string	OB(O)O
solubility	water: soluble
vapor pressure	2.6 mmHg ( 20 °C)