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31146 Sigma-Aldrich

Boric acid

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., buffer substance, ≥99.8%

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Properties

Related Categories A-B, Puriss p.a. ACS, ACS Grade Acids & Bases, Acids, Acids & Bases, Analytical Reagents,
Quality Level   200
grade   ACS reagent
Agency/Method   reag. ISO
  reag. Ph. Eur.
vapor pressure   2.6 mmHg ( 20 °C)
grade   puriss. p.a.
assay   ≥99.8%
form   powder or crystals
impurities   ≤0.005% insoluble in methanol
  ≤0.05% with methanol-HCl non-volat. matter
pH   3.6-4.0 (20 °C, 4%)
mp   160 °C (dec.) (lit.)
solubility   water: soluble
density   1.440 g/cm3
anion traces   chloride (Cl-): ≤3 mg/kg
  phosphate (PO43-): ≤5 mg/kg
  sulfate (SO42-): ≤5 mg/kg
cation traces   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
SMILES string   OB(O)O
InChI   1S/BH3O3/c2-1(3)4/h2-4H
InChI key   KGBXLFKZBHKPEV-UHFFFAOYSA-N

Description

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.

Safety & Documentation

Safety Information

Symbol 
GHS08  GHS08
Signal word 
Danger
Hazard statements 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 1
RTECS 
ED4550000

Documents

Certificate of Analysis (COA)

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Protocols & Articles

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Peer-Reviewed Papers
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