Completing data — usually done within a minute
Basic information
- Standard SMILES
N#CS- InChIKey
ZMZDMBWJUHKJPS-UHFFFAOYSA-N- Molecular formula
- CHNS
- Average molar mass
- 59.093 g/mol
- Monoisotopic mass
- 58.98297003
Names & identifiers
- Preferred name
- Thiocyanic acid
- IUPAC
- Thiocyanic acid
- English name
- Thiocyanic acid
- Molecular formula
- CHNS
- Molecular weight
- 59.09
Names & synonyms
HSCNThiocyanic acidSulfocyanic acidhydrogen thiocyanate
Database identifiers
- CAS
463-56-9- PubChem CID
- 781
- DTXSID
DTXSID7047221- ChEMBL
CHEMBL84336- ChEBI
CHEBI:29200- UNII
- A5KWW7N91V
- EC Number
- 207-337-4
- Nikkaji
- J402B
Properties
Physicochemical properties
- Melting point
- -110 °C · -110 °C
- Boiling point
- -87.78 °C · -87.78°C (estimate)
- Density
- 1.228 · 1.228 (estimate)
- refractive index
- 1.464 · 1.4640 (estimate)
- pka
- 0.93 · 0.93±0.10(Predicted)
- PH
- 1 · pKa1= –0.87(25℃)
- LogP
- 0.429 · 0.429 (est)
- EWG's Food Scores
- 1 · 1
- FDA UNII
- 5 KWW7N91V · A5KWW7N91V
- EPA Substance Registry System
- Thiocyanic acid (463-56-9)
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 302 · H302-H312-H332-H412
- Precautionary statements
- 264 · P264-P270-P301+P312-P330-P501-P280-P302+P352-P312-P322-P363-P501-P261-P271-P304+P340-P312-P273-P501
- Hazard Codes
- Xn
- Risk Statements
- 20 · 20/21/22-32-52/53
- Safety Statements
- 13 · 13-61
- TSCA
- TSCA listed
Safety & regulation
Safety data
- tsca
- TSCA listed
- risk_code
- 20/21/22-32-52/53
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xn
- safety_code
- 13-61
- Hazard statements
- H302-H312-H332-H412
- Precautionary statements
- P264-P270-P301+P312-P330-P501-P280-P302+P352-P312-P322-P363-P501-P261-P271-P304+P340-P312-P273-P501
Chemistry & industry
Applications
UsesThiocyanic acid can be used to prepare thiocyanates, esters, various thiocyanates, and cyanides. SCN ions are excellent ligands. A particularly sensitive reaction of SCN ions is the formation of various red complexes with Fe. Therefore, potassium thiocyanate or ammonium thiocyanate are commonly used as reagents for testing for Fe.
Upstream & downstream products
Downstream products
Additional notes
DefinitionChEBI: Thiocyanic acid is a hydracid that is cyanic acid in which the oxygen is replaced by a sulfur atom. It has a role as an Escherichia coli metabolite. It is a hydracid, a one-carbon compound and an organosulfur compound. It is a conjugate acid of a thiocyanate. It is a tautomer of an isothiocyanic acid.
Definitionthiocyanic acid: An unstable gas, HSCN.
Related reactions
8 records
Linked notes
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