Lead(II) nitrate

Lead(II) nitrate
Identifiers
CAS Number	10099-74-8 ;
3D model (JSmol)	Interactive image;
ChemSpider	23300;
ECHA InfoCard	100.030.210
EC Number	233-245-9;
PubChem CID	24924;
RTECS number	OG2100000;
UNII	6E5P1699FI;
UN number	1469
CompTox Dashboard (EPA)	DTXSID2035069 ;
	InChI InChI=1S/2NO3.Pb/c22-1(3)4;/q2-1;+2 Key: RLJMLMKIBZAXJO-UHFFFAOYSA-N;
	SMILES [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Pb+2];
Properties
Chemical formula	Pb(NO3)2
Molar mass	331.2 g·mol−1
Appearance	colorless or white
Density	4.53 g/cm3
Melting point	470 °C (878 °F; 743 K) decomposes
Solubility in water	376.5 g/L (0 °C (32 °F; 273 K)); 597 g/L (25 °C (77 °F; 298 K)); 1270 g/L (100 °C (212 °F; 373 K));
Magnetic susceptibility (χ)	−74×10−6 cm3/mol
Refractive index (nD)	1.782
Thermochemistry
Std enthalpy of; formation (ΔfH⦵298)	−451.9 kJ.mol−1
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H272, H302+H332, H317, H318, H332, H351, H360Df, H372, H373, H410
Precautionary statements	P203, P210, P220, P260, P264+P265, P270, P271, P272, P273, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P317, P318, P319, P321, P330, P333+P317, P362+P364, P370+P378, P391, P405, P501 Preview warning: Omit Rules: keep P260, omit P261
NFPA 704 (fire diamond)	2 0 2 OX
Threshold limit value (TLV)	0.05 mg/m3 (TWA)
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	93 mg/kg (rat, oral)
LDLo (lowest published)	500 mg/kg (guinea pig, oral)
	NIOSH (US health exposure limits):
PEL (Permissible)	0.050 mg/m3 (as lead)
REL (Recommended)	0.050 mg/m3 (TWA, 8h, as lead)
IDLH (Immediate danger)	100 mg/m3
Safety data sheet (SDS)	ICSC 1000
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Lead(II) nitrate is an inorganic compound with the chemical formula Pb(NO₃)₂. It commonly occurs as a colourless crystal or white powder and, unlike most other lead(II) salts, is soluble in water.

Known since the Middle Ages by the name plumbum dulce (sweet lead), the production of lead(II) nitrate from either metallic lead or lead oxide in nitric acid was small-scale, for direct use in making other lead compounds. In the nineteenth century lead(II) nitrate began to be produced commercially in Europe and the United States. Historically, the main use was as a raw material in the production of pigments for lead paints, but such paints have been superseded by less toxic paints based on titanium dioxide. Other industrial uses included heat stabilization in nylon and polyesters, and in coatings of photothermographic paper. Since around the year 2000, lead(II) nitrate has begun to be used in gold cyanidation.

Lead(II) nitrate is toxic and must be handled with care to prevent inhalation, ingestion and skin contact. Due to its hazardous nature, the limited applications of lead(II) nitrate are under constant scrutiny.