Lead oxide phosphonate (Pb3O2(HPO3))
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Lead oxide phosphonate (Pb3O2(HPO3))
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CAS No:
12141-20-7
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Formula:
HO3P.O.Pb
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Chemical Name:
Lead oxide phosphonate (Pb3O2(HPO3))
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Synonyms:
Lead oxide phosphonate (Pb3O2(HPO3));Lead oxide phosphite;Dibasic lead phosphite;L-FOS
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CAS No:
Safety Information
III
4.1
1325
3
R36/37/38:Irritating to eyes, respiratory system and skin . R40:Limited evidence of a carcinogenic effect. R11:Highly Flammable.
S26
Xi,Xn,F
Stability
P201, P202, P210, P240, P241, P260, P261, P263, P264, P270, P271, P273, P280, P281, P301+P312, P304+P312, P304+P340, P308+P313, P312, P314, P330, P370+P378, P391, P405, P501
H228
|Danger|H341: Suspected of causing genetic defects [Warning Germ cell mutagenicity]|P201, P202, P260, P281, P308+P313, P314, P405, and P501
Lead oxide phosphonate (Pb3O2(HPO3)) Use and Manufacturing
In the lead oxide method, the metallic lead is first heated and melted in a lead melting furnace, and then sent to the Huang Dan furnace to be oxidized to lead monoxide. Phosphorus trichloride is added to the reactor to hydrolyze at 50°C, slowly increase the temperature, concentrate at 146-148°C, add activated carbon for decolorization, and filter to prepare phosphorous acid. The metered lead oxide is first mixed with water into a slurry and added to the synthesis kettle, heated to about 70°C, using acetic acid as a catalyst, adding quantitative phosphorous acid under constant stirring, when the Ph value reaches 6.9, white dibasic alkali is formed Formula lead phosphite suspension is added with a dehydrating agent for dehydration, filtered and dried to obtain a finished product of dibasic lead phosphite. The 2Pb+O2→2PbOPCI3+3H2O→H3PO3+3HCI3PbO+H3PO3[Hac]→2PbO?PbHPO3?0.5H2O+0.5H2O lead water method to add lead metal into the reactor and add acetic acid to dissolve, slowly add caustic soda solution under stirring The reaction produces lead hydroxide, which is filtered to remove sodium acetate. Lead hydroxide is added to the synthesizer, and phosphorous acid is added quantitatively under constant stirring for reaction to generate dibasic lead phosphite, which is filtered and dried to obtain a finished product of dibasic lead phosphite. Its 2Pb(OH)2+H3PO3→this product+2.5H2O
Used as stabilizer for opaque PVC products
25,000 - 100,000 lb
All other chemical product and preparation manufacturing|Lead oxide phosphonate (Pb3O2(HPO3)): ACTIVE
Computed Properties
Molecular Weight:7.3e+02
Hydrogen Bond Acceptor Count:5
Exact Mass:732.87610
Monoisotopic Mass:734.87829
Topological Polar Surface Area:97.3
Heavy Atom Count:9
Formal Charge:1
Complexity:20.8
Covalently-Bonded Unit Count:4
Compound Is Canonicalized:Yes
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Lead oxide phosphonate (Pb3O2(HPO3))
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