Fluorophosphoric acid

Fluorophosphoric acid
Names
	IUPAC name Fluorophosphonic acid
	Other names Fluorophosphoric acid; Monoluorophosphoric acid; Phosphorofluoridic acid;
Identifiers
CAS Number	13537-32-1;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:30210;
ChemSpider	22687;
ECHA InfoCard	100.202.790
EC Number	233-433-0;
Gmelin Reference	100863
PubChem CID	24267;
UNII	IW87A7KU3R;
CompTox Dashboard (EPA)	DTXSID1075309 ;
	InChI InChI=1S/FH2O3P/c1-5(2,3)4/h(H2,2,3,4) Key: DWYMPOCYEZONEA-UHFFFAOYSA-N;
	SMILES OP(=O)(O)F;
Properties
Chemical formula	H2PO3F
Molar mass	99.985 g·mol−1
Appearance	Colorless viscous liquid
Odor	Practically odorless
Density	1.818 g/cm3
Melting point	−78 °C (−108 °F; 195 K)
Boiling point	Decomposes
Solubility in water	yes
Acidity (pKa)	pKa1 = 5.5; pKa2 = 8.5
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Causes skin burns and eye damage.
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H311, H314, H330
Precautionary statements	P260, P264, P270, P271, P280, P284, P301+P310, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P320, P321, P322, P330, P361, P363, P403+P233, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Fluorophosphoric acid is the inorganic compound with the formula H₂P O₃F. It is a colorless viscous liquid that solidifies to a rigid glass upon cooling at −78 °C (−108 °F).

Names

IUPAC name Fluorophosphonic acid
Other names Fluorophosphoric acid Monoluorophosphoric acid Phosphorofluoridic acid
Identifiers
CAS Number	13537-32-1
3D model (JSmol)	Interactive image
ChEBI	CHEBI:30210
ChemSpider	22687
ECHA InfoCard	100.202.790
EC Number	233-433-0
Gmelin Reference	100863
PubChem CID	24267
UNII	IW87A7KU3R
CompTox Dashboard (EPA)	DTXSID1075309
InChI InChI=1S/FH2O3P/c1-5(2,3)4/h(H2,2,3,4) Key: DWYMPOCYEZONEA-UHFFFAOYSA-N
SMILES OP(=O)(O)F
Properties
Chemical formula	H₂PO₃F
Molar mass	99.985 g·mol⁻¹
Appearance	Colorless viscous liquid
Odor	Practically odorless
Density	1.818 g/cm³
Melting point	−78 °C (−108 °F; 195 K)
Boiling point	Decomposes
Solubility in water	yes
Acidity (pK_a)	pK_a1 = 5.5 pK_a2 = 8.5
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	Causes skin burns and eye damage.
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H311, H314, H330
Precautionary statements	P260, P264, P270, P271, P280, P284, P301+P310, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P320, P321, P322, P330, P361, P363, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references