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79621 Sigma-Aldrich

Phosphoric acid

puriss. p.a., ACS reagent, packed in coated, shock- and leak-protected glass bottle, ≥85% (T)

Synonym: Orthophosphoric acid

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Properties

Related Categories ACS Grade Acids & Bases, Acids, Acids & Bases, Analytical Reagents, Analytical Reagents for General Use,
grade   ACS reagent
vapor density   3.4 (vs air)
vapor pressure   2.2 mmHg ( 20 °C)
  5 mmHg ( 25 °C)
InChI Key   NBIIXXVUZAFLBC-UHFFFAOYSA-N
grade   puriss. p.a.
assay   ≥85% (T)
quality   packed in coated, shock- and leak-protected glass bottle
impurities   ≤0.001% KMnO4-reducing matter (as O)
  ≤0.001% volatile acids (as CH3COOH)
bp   158 °C (lit.)
mp   ~40 °C (lit.)
density   1.685 g/mL at 25 °C (lit.)
anion traces   chloride (Cl-): ≤2 mg/kg
  fluoride (F-): ≤1 mg/kg
  nitrate (NO3-): ≤5 mg/kg
  phosphite, hypophosphite (as H3PO3): ≤50 mg/kg
  sulfate (SO42-): ≤30 mg/kg
cation traces   Ag: ≤1 mg/kg
  Al: ≤1 mg/kg
  As: ≤0.5 mg/kg
  Ba: ≤1 mg/kg
  Bi: ≤1 mg/kg
  Ca: ≤10 mg/kg
  Cd: ≤1 mg/kg
  Co: ≤1 mg/kg
  Cr: ≤1 mg/kg
  Cu: ≤1 mg/kg
  Fe: ≤10 mg/kg
  K: ≤5 mg/kg
  Li: ≤1 mg/kg
  Mg: ≤1 mg/kg
  Mn: ≤1 mg/kg
  Mo: ≤1 mg/kg
  Na: ≤50 mg/kg
  Ni: ≤1 mg/kg
  Pb: ≤1 mg/kg
  Sb: ≤2 mg/kg
  Sr: ≤1 mg/kg
  Tl: ≤1 mg/kg
  Zn: ≤1 mg/kg
Gene Information   human ... SRC(6714)

Description

Other Notes

Concentrated phosphoric acid is approx. 85% H3PO4 (aqueous).

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

Reagent for the decomposition of aluminum oxide and silicates by solubilization

Caution

product may become solid; becomes liquid on heating to 50°C

Safety & Documentation

Safety Information

Symbol 
GHS05  GHS05
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 1805 8 / PGIII
WGK Germany 
1
Protocols & Articles

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