Lead phosphate

Description

Lead phosphate · CAS 7446-27-7 · P2Pb3O8. UNII 62I1T06190. Melting Point: 1,014 °C; Melting Point: 1014 °C; Solubility: 0.000014 g/100 cu cm water @ 20 °C.

Identification

CAS Registry Number	7446-27-7
PubChem CID	24009
Molecular formula	P2Pb3O8
IUPAC name	tris(lead(2+)) diphosphate
UNII (FDA)	62I1T06190

Computed Descriptors

Molecular Weight	8.1e+02
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	8
Rotatable Bond Count	0
Exact Mass	811.83461
Monoisotopic Mass	813.83680
Topological Polar Surface Area	173
Heavy Atom Count	13
Formal Charge	0
Complexity	36.8

Physical & Chemical Properties

Melting Point	1,014 °C
Melting Point	1014 °C
Solubility	0.000014 g/100 cu cm water @ 20 °C
Density	6.9 g/cu cm
Density	6.9-7.3 @25 °C

Physical description & handling notes

• Lead phosphate is a white powder.
• White solid; [Merck Index] Practically insoluble in water (0.14 mg/L at 20 deg C); [ATSDR ToxProfiles]
• White powder
• Insol in alcohol; sol in nitric acid, fixed alkali hydroxides
• Insoluble in ethanol
• When heated to decomp ... emits very toxic fumes of /lead and phosphorus oxides/.

GHS Hazard Classification

Reported hazard statements	H373, H400, H410, H351, H360, H370, H372, H341

Documented Uses

• Used as a styrene and plastic stabilizer and in special glasses; [Merck Index]
• Plastic Composites Manufacturing [Category: Industry]
• Glass Manufacturing [Category: Industry]
• (1982) Not used commercially in USA
• Stabilizer for styrene and casein plastics; in special glasses.[The Merck Index, Fourteenth Edition (2006)
• Lead phophate is used as a stabilizer in plastics. (L138)

Synonyms

LEAD PHOSPHATE; Trilead phosphate; 7446-27-7; Plumbous phosphate; Lead orthophosphate; Perlex paste 500; Bleiphosphat; Lead(2+) phosphate; Perlex paste 600A; Collodial lead phosphate; Lead phosphate, colloidal; Normal lead orthophosphate; Trilead bis(orthophosphate); Lead(II) phosphate (3:2); Lead phosphate (Pb3(PO4)2); Lead(2+) phosphate (Pb3(PO4)2)

Frequently Asked Questions

What are the CAS number and molecular formula of Lead phosphate?

CAS 7446-27-7; molecular formula P2Pb3O8; molecular weight — g/mol.

What other names is Lead phosphate known by?

LEAD PHOSPHATE, Trilead phosphate, 7446-27-7, Plumbous phosphate, Lead orthophosphate, Perlex paste 500.

Is Lead phosphate classified as hazardous?

Hazard statements reported: H373, H400, H410, H351, H360.

What are the key physical properties of Lead phosphate?

Melting Point: 1,014 °C; Melting Point: 1014 °C; Solubility: 0.000014 g/100 cu cm water @ 20 °C; Density: 6.9 g/cu cm.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.