-
Name
LEAD PHOSPHITE, DIBASIC
- EINECS 235-252-2
- CAS No. 12141-20-7
- Density
- Solubility 12.2mg/L at 20℃
- Melting Point
- Formula PbHPO3.2(PbO)
- Boiling Point
- Molecular Weight 733.58
- Flash Point
- Transport Information
- Appearance solid
- Safety
- Risk Codes R36/37/38; R40; R11
-
Molecular Structure
-
Hazard Symbols
Xi,
Xn,
F
- Synonyms lead phosphite,dibasic;Trilead dioxide phosphonate;L-FOS;Lead oxide phosphonate (Pb3O2(HPO3));Lead oxide phosphite;lead(2+) phosphonate - oxo-l2-plumbane (1:2);
- PSA 114.08000
- LogP -1.31340
Dibasic lead Phosphite Specification
The Dibasic lead Phosphite, with the CAS registry number 12141-20-7 and EINECS registry number 235-252-2, has the systematic name of lead(2+) phosphonate - oxo-λ2-plumbane (1:2). It is a kind of Inorganics, and the molecular formula of this chemical is HO5PPb3. What's more, it is usually used as heat stabilizer in the synthesis of PVC, and it has a good inoxidability and exceptionally good weatherability.
The physical properties of Dibasic lead Phosphite are as followings: (1)#H bond acceptors: 5; (2)#H bond donors: 2; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 120.8 Å2.
Preparation: First, you should get litharge and orthophosphorous acid. Then, add litharge and water into reactor, and heat to 70°C. Add orthophosphorous acid in the presence of acetic acid with stirring until the ph is about 6.9. And after a series of dehydration, filtration and drying, you can get the product:
2Pb+O2→2PbO
PCl3+3H2O→H3PO3+3HCI
3PbO+H3PO3[HAc]→2PbO.PbHPO3.0.5H2O+0.5H2O
You can still convert the following datas into molecular structure:
(1)SMILES: [O-]P(=O)[O-].O=[Pb].O=[Pb].[PbH2+2]
(2)InChI: InChI=1/H3O3P.2O.3Pb.2H/c1-4(2)3;;;;;;;/h4H,(H2,1,2,3);;;;;;;/q;;;;;+2;;/p-2/rH3O3P.2OPb.H2Pb/c1-4(2)3;2*1-2;/h4H,(H2,1,2,3);;;1H2/q;;;+2/p-2
(3)InChIKey: VAOOPULOMAMBPQ-TUZRSDEQAU
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