Hypophosphorous acid
Properties
- Molecular formula
- H3O2P
- Molar mass
- 66.00 g/mol
- Exact mass
- 65.9871 Da
- Density
- 1.479 g/mL (at 20 °C)
- Melting point
- 23–25 °C
- Boiling point
- 130 °C
- pKa
- 2.27 (22 °C)
- Water solubility
- miscible
- logP
- -0.35Crippen estimate
- Polar surface area
- 37.3 Ų
- H-bond donors / acceptors
- 1 / 1
- Rotatable bonds
- 0
Hazards
Danger
- H290 May be corrosive to metals35.4% of notifiers
- H314 Causes severe skin burns and eye damage98.5% of notifiers
- H318 Causes serious eye damage82.7% of notifiers
Aggregated from 1,039 ECHA notifications, via PubChem; a share says how many notifiers assign that statement.
Precautionary statements
P234, P260, P264, P264+P265, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P363, P390, P405, P406, P501
Identifiers
CAS number
6303-21-5SMILES
O=[PH2]OInChIKey
ACVYVLVWPXVTIT-UHFFFAOYSA-NInChI
InChI=1S/H3O2P/c1-3-2/h3H2,(H,1,2)Weigh it out
Type any one amount. The others follow from the molar mass and density.
Names and synonyms
5 names
- Phosphinic acid
- Phosphine oxide, hydroxy-
- Phosphonous acid
- Hydroxyphosphine oxide
- Dihydroxyphosphine
Safety data sheets
One stored sheet lists this compound in section 3, matched by the CAS number 6303-21-5. Each row opens the sheet with its composition and PDF.
Work with Hypophosphorous 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
Boiling point under vacuumAt any pressure, from its normal boiling point
Isotope patternExact mass and the mass spectrum pattern
Similar compounds
Ammonium phosphinate7803-65-875 % similar
2-Propenoic acid, polymer with sodium phosphinate (1:1)71050-62-935 % similar
Tanimoto similarity of circular fingerprints over the whole catalogue.