EMAIL THIS PAGE TO A FRIEND
P6560 Sigma-Aldrich

Phosphoric acid

ACS reagent, ≥85% H3PO4

Synonym: Orthophosphoric acid

Purchase

Properties

grade   ACS reagent
vapor density   3.4 (vs air)
vapor pressure   2.2 mmHg ( 20 °C)
  5 mmHg ( 25 °C)
concentration   ≥85% H3PO4
impurities   Reducing substances, passes test
  ≤0.001% Volatile acids (as CH3COOH)
  ≤0.005% Insoluble matter, calcium, magnesium, and ammonium hydroxide precipitate
color   APHA: ≤10
bp   158 °C (lit.)
mp   ~40 °C (lit.)
density   1.68 g/mL at 25 °C (lit.)
  1.685 g/mL at 25 °C (lit.)
anion traces   chloride (Cl-): ≤3 ppm
  nitrate (NO3-): ≤5 ppm
  sulfate (SO42-): ≤0.003%
cation traces   As: ≤1 ppm
  Fe: ≤0.003%
  K: ≤0.005%
  Mn: ≤0.5 ppm
  Na: ≤0.025%
  Sb: ≤0.002%
  heavy metals (as Pb): ≤0.001%
SMILES string   OP(O)(O)=O
InChI   1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
InChI key   NBIIXXVUZAFLBC-UHFFFAOYSA-N

Description

Other Notes

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

Safety & Documentation

Safety Information

Symbol 
GHS05  GHS05
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 1805 8 / PGIII
WGK Germany 
1
Protocols & Articles
Peer-Reviewed Papers
15

References

Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?