Phosphoric acid

H3O4PCAS 7664-38-297.99 g/mol

Open in Covalent MOL file
OPOHOHHO
Phosphate

Properties

Molecular formula
H3O4P
Molar mass
97.99 g/mol
Exact mass
97.9769 Da
Density
1.834 g/mL (at 18 °C)
Melting point
42.35 °C
pKa
2.15, 7.09, 12.32
Water solubility
miscible
logP
-0.93Crippen estimate
Polar surface area
77.8 Ų
H-bond donors / acceptors
3 / 1
Rotatable bonds
0

Hazards

Danger
Corrosive (GHS05)

Harmonised EU classification (CLP Annex VI, index 015-011-00-6), via PubChem.

Precautionary statements

P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, P501

Identifiers

CAS number
7664-38-2
SMILES
O=P(O)(O)O
InChIKey
NBIIXXVUZAFLBC-UHFFFAOYSA-N
InChI
InChI=1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)

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Type any one amount. The others follow from the molar mass and density.

Names and synonyms

36 names · show all
  • Orthophosphoric acid
  • EVITs
  • WC-Reiniger
  • Sonac
  • Decon 4512
  • Kefo
  • 3M Etching liquid
  • C 134 (Acid)
  • C 434 (Acid)
  • C 134
  • C 434
  • Mikro klene DF
  • K-Etchant
  • SPA 2 (catalyst)
  • SPA 2
  • TG 434
  • Ultra-etch gel
  • Uni-etch
  • Ultraetch
  • Amberphos 54
  • HQ 54
  • Panavia etching agent
  • Conditioner 36
  • E 338
  • Total etch
  • NSC 80804
  • Etchalite
  • Kerr etchant
  • Y 11A06
  • Ultradent
  • K Etchant gel
  • Acidum phosphoricum
  • Vococid
  • PC 400
  • SF 1
  • SF 1 (acid)

Safety data sheets

One stored sheet lists this compound in section 3, matched by the CAS number 7664-38-2. Each row opens the sheet with its composition and PDF.

Open in the SDS library

Work with Phosphoric acid

Predict the NMR spectrum1H and 13C shifts with multiplicities Make a solutionWhat to weigh for any molarity and volume Check drug-likenessLipinski, Veber and lead-likeness Isotope patternExact mass and the mass spectrum pattern

Stereoisomers, salts and isotopologues

The same compound in another form: other stereochemistry, a salt or hydrate, the free acid or base, or an isotope-labelled version.

Phosphate14265-44-2

Similar compounds

Ammonium phosphate10361-65-675 % similar Zirconium phosphate (Zr(HPO4)2)13772-29-775 % similar Ammonium dihydrogen phosphate7722-76-175 % similar Diammonium phosphate7783-28-075 % similar Tungsten hydroxide oxide phosphate12067-99-169 % similar Piperazine phosphate14538-56-860 % similar Piperazine, phosphate (1:?)1951-97-960 % similar Diguanidine phosphate5423-23-453 % similar

Tanimoto similarity of circular fingerprints over the whole catalogue.

All similar compounds

Elsewhere

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