Chromic acid
Properties
- Molecular formula
- CrH2O4
- Molar mass
- 118.01 g/mol
- Exact mass
- 117.9358 Da
- Density
- 1.67–2.82 g/mL
- Melting point
- 196 °C
- pKa
- -0.8
- Water solubility
- 1,690 g/L (25 °C)
- logP
- -0.59Crippen estimate
- Polar surface area
- 117.0 Ų
- H-bond donors / acceptors
- 0 / 2
- Rotatable bonds
- 0
Hazards
Danger
- H271 May cause fire or explosion; strong Oxidizer26.7% of notifiers
- H300 Fatal if swallowed32.7% of notifiers
- H301 Toxic if swallowed16.8% of notifiers
- H310 Fatal in contact with skin46.5% of notifiers
- H314 Causes severe skin burns and eye damage38.6% of notifiers
- H317 May cause an allergic skin reaction100% of notifiers
- H318 Causes serious eye damage22.8% of notifiers
- H330 Fatal if inhaled48.5% of notifiers
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled48.5% of notifiers
- H340 May cause genetic defects27.7% of notifiers
- H341 Suspected of causing genetic defects21.8% of notifiers
- H350 May cause cancer100% of notifiers
- H361 Suspected of damaging fertility or the unborn child49.5% of notifiers
- H372 Causes damage to organs through prolonged or repeated exposure27.7% of notifiers
- H400 Very toxic to aquatic life88.1% of notifiers
- H410 Very toxic to aquatic life with long lasting effects100% of notifiers
Aggregated from 101 ECHA notifications, via PubChem; a share says how many notifiers assign that statement.
Precautionary statements
P203, P210, P220, P233, P260, P261, P262, P264, P264+P265, P270, P271, P272, P273, P280, P283, P284, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P306+P360, P316, P317, P318, P319, P320, P321, P330, P333+P317, P342+P316, P361+P364, P362+P364, P363, P370+P378, P371+P380+P375, P391, P403, P403+P233, P405, P420, P501
Identifiers
CAS number
7738-94-5SMILES
[Cr+2].[OH-].[OH-].[O].[O]InChIKey
KRVSOGSZCMJSLX-UHFFFAOYSA-LInChI
InChI=1S/Cr.2H2O.2O/h;2*1H2;;/q+2;;;;/p-2Weigh it out
Type any one amount. The others follow from the molar mass and density.
Names and synonyms
4 names
- Chromic acid (H2CrO4)
- Chromic(VI) acid
- Chromium hydroxide oxide (Cr(OH)2O2)
- Chromium oxide hydroxide (CrO2(OH)2)
Work with Chromic acid
Similar compounds
Ammonium chromate7788-98-975 % similar
Sodium chromate tetrahydrate10034-82-960 % similar
Cobalt oxyhydroxide12016-80-750 % similar
Chromyl chloride14977-61-850 % similar
Iron hydroxide oxide (Fe(OH)O)20344-49-450 % similar
Chromyl fluoride7788-96-750 % similar
Molybdenum phosphorus hydroxide oxide11104-88-440 % similar
Ammonium dichromate7789-09-540 % similar
Tanimoto similarity of circular fingerprints over the whole catalogue.