Lead hydrogen arsenate

Lead hydrogen arsenate
Names
	Other names Lead (II) monohydrogen arsenate
Identifiers
CAS Number	7784-40-9 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:81881;
ChemSpider	22976;
ECHA InfoCard	100.029.149
EC Number	232-064-2;
PubChem CID	24572;
UNII	A9AI2R9EWN ;
UN number	1617
CompTox Dashboard (EPA)	DTXSID4042092 ;
	InChI InChI=1S/AsH3O4.Pb/c2-1(3,4)5;/h(H3,2,3,4,5);/q;+2/p-2 Key: UWRBYRMOUPAKLM-UHFFFAOYSA-L;
	SMILES O[As](=O)([O-])[O-].[Pb+2];
Properties
Chemical formula	PbHAsO4
Molar mass	347.1 g·mol−1
Appearance	white solid
Density	5.943 g/cm3
Melting point	Decomposes at 280°C
Solubility in water	Insoluble in water; soluble in nitric acid and alkalies
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H331, H350, H360Df, H373, H410
Precautionary statements	P201, P202, P260, P261, P264, P270, P271, P273, P281, P301+P310, P304+P340, P308+P313, P311, P314, P321, P330, 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). Infobox references

Lead hydrogen arsenate, also called lead arsenate, acid lead arsenate or LA, chemical formula PbHAsO₄, is an inorganic insecticide used primarily against the potato beetle. Lead arsenate was the most extensively used arsenical insecticide. Two principal formulations of lead arsenate were marketed: basic lead arsenate (Pb₅OH(AsO₄)₃, CASN: 1327-31-7) and acid lead arsenate (PbHAsO₄).

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