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;
UN number	2989
	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 labelling:
Pictograms
Signal word	Danger
Hazard statements	H228, H350, H360, H370, H372
Precautionary statements	P201, P202, P210, P240, P241, P260, P264, P270, P280, P281, P307+P311, P308+P313, P314, P321, P370+P378, 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

^ Grossman, Richard F.; Krausnick, Dale (1998). "The structure of lead stabilizers. 2: Basic salts of inorganic acids". Vinyl and Additive Technology. 4 (3): 179–181. doi:10.1002/vnl.10038. S2CID 95532627.
^ Bettermann, Gerhard; Krause, Werner; Riess, Gerhard; Hofmann, Thomas (2000). "Phosphorus Compounds, Inorganic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a19_527. ISBN 978-3527306732..
^ 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. Bibcode:2015JSSCh.231..198S. doi:10.1016/j.jssc.2015.08.031.

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[1] Grossman, Richard F.; Krausnick, Dale (1998). "The structure of lead stabilizers. 2: Basic salts of inorganic acids". Vinyl and Additive Technology. 4 (3): 179–181. doi:10.1002/vnl.10038. S2CID 95532627.

[betterman-2] Bettermann, Gerhard; Krause, Werner; Riess, Gerhard; Hofmann, Thomas (2000). "Phosphorus Compounds, Inorganic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a19_527. ISBN 978-3527306732..

[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. Bibcode:2015JSSCh.231..198S. doi:10.1016/j.jssc.2015.08.031.

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