Names | |
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Other names
basic lead phosphonite
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Identifiers | |
3D model (JSmol)
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PubChem CID
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Properties | |
H3O6PPb3 | |
Molar mass | 751.6 g·mol−1 |
Appearance | white solid |
Hazards | |
GHS labelling: | |
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Danger | |
H228, H350, H360, H370, H372 | |
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).
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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]