Basic lead phosphite

Basic lead phosphite
Names
	Other names basic lead phosphonite
Identifiers
CAS Number	1344-40-7;
3D model (JSmol)	Interactive image;
PubChem CID	71300865;
	InChI InChI=1S/2HO3P.H2O.4O.6Pb/c21-4(2)3;;;;;;;;;;;/h21H;1H2;;;;;;;;;;/q2-2;;;;;;;;;;2+2 Key: XTQIDVCLCLXOKX-UHFFFAOYSA-N;
	SMILES O.OP([O-])[O-].OP([O-])[O-].O=[Pb].O=[Pb].O=[Pb].O=[Pb].[Pb+2].[Pb+2];
Properties
Chemical formula	H3O6PPb3
Molar mass	751.6 g·mol−1
Appearance	white solid
Hazards
GHS pictograms
GHS Signal word	Danger
GHS hazard statements	H228, H350, H360, H370, H372
GHS precautionary statements	P201, P202, P210, P240, P241, P260, P264, P270, P280, P281, P307+311, P308+313, P314, P321, P370+378, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Basic lead phosphite is an inorganic compound with the proposed composition Pb₃O(OH)₂(HPO₃).[1] The compound contains the phosphite anion, which provides the reducing properties associated with the application of this material.

It is widely used as a stabilizer for chlorine-containing polymers, especially polyvinylchloride.[2] Other lead phosphites are known, including normal lead phosphite, PbHPO₃, although the basic salt is especially effective.[3]

References

Richard F. Grossman; Dale Krausnick (1998). "The structure of lead stabilizers. 2: Basic salts of inorganic acids". Vinyl and Additive Technology. 4: 179–181. doi:10.1002/vnl.10038.
Betterman, G.; Krause, W.; Riess, G.; Hofmann, T. “Phosphorus Compounds, Inorganic” Ullmann’s Encyclopedia of Industrial Chemistry, 2005, Wiley-VCH, Weinheim. doi: 10.1002/14356007.a19_527.
Song, Jun-Ling; Hu, Chun-Li; Xu, Xiang; Kong, Fang; Mao, Jiang-Gao (2015). "Synthesis, crystal structures and properties of lead phosphite compounds". Journal of Solid State Chemistry. 231: 198–203. doi:10.1016/j.jssc.2015.08.031.

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[1] Richard F. Grossman; Dale Krausnick (1998). "The structure of lead stabilizers. 2: Basic salts of inorganic acids". Vinyl and Additive Technology. 4: 179–181. doi:10.1002/vnl.10038.

[betterman-2] Betterman, G.; Krause, W.; Riess, G.; Hofmann, T. “Phosphorus Compounds, Inorganic” Ullmann’s Encyclopedia of Industrial Chemistry, 2005, Wiley-VCH, Weinheim. doi: 10.1002/14356007.a19_527.

[3] Song, Jun-Ling; Hu, Chun-Li; Xu, Xiang; Kong, Fang; Mao, Jiang-Gao (2015). "Synthesis, crystal structures and properties of lead phosphite compounds". Journal of Solid State Chemistry. 231: 198–203. doi:10.1016/j.jssc.2015.08.031.