Tetrakis(hydroxymethyl)phosphonium chloride

Tetrakis(hydroxymethyl)phosphonium chloride
Names
	Preferred IUPAC name Tetrakis(hydroxymethyl)phosphonium chloride
	Other names Tetrahydroxymethylphosphonium chloride, THPC
Identifiers
CAS Number	124-64-1 ;
ChEMBL	ChEMBL2131547;
ChemSpider	29038 ;
ECHA InfoCard	100.004.280
EC Number	204-707-7;
PubChem CID	31298;
RTECS number	TA2450000;
UNII	58WB2XCF8I ;
UN number	2810
CompTox Dashboard (EPA)	DTXSID5021330 ;
Properties
Chemical formula	C4H12ClO4P
Molar mass	190.56 g·mol−1
Appearance	white solid
Density	1.341 g/cm3
Melting point	150 °C (302 °F; 423 K)
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H302, H311, H312, H314, H315, H330, H334, H411
Precautionary statements	P260, P261, P264, P270, P271, P273, P280, P284, P285, P301+P310, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P304+P341, P305+P351+P338, P310, P312, P320, P321, P322, P330, P332+P313, P342+P311, P361, P362, P363, P391, P403+P233, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Tetrakis(hydroxymethyl)phosphonium chloride (THPC) is an organophosphorus compound with the chemical formula [P(CH₂OH)₄]Cl. It is a white water-soluble salt with applications as a precursor to fire-retardant materials and as a microbiocide in commercial and industrial water systems.