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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

Caution

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

Other Notes

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

Reagent for the decomposition of aluminum oxide and silicates by solubilization

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.

Price and Availability

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.



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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Peer-Reviewed Papers
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References

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