LEAD (II) BORATE MONOHYDRATE

LEAD (II) BORATE MONOHYDRATE Basic information
Physical properties
Product Name:LEAD (II) BORATE MONOHYDRATE
Synonyms:Lead(Ⅱ) borate;Lead metaborate monohydrate;boric acid, lead salt;Bis(metaboric acid)lead(II) salt;Bismetaboric acid lead(II) salt;Lead Borate Monohydrate;LEAD BORATE 1 KG;Boron lead oxide (B2PbO4)
CAS:14720-53-7
MF:BH3O2Pb
MW:253.03
EINECS:238-762-3
Product Categories:
Mol File:14720-53-7.mol
LEAD (II) BORATE MONOHYDRATE Structure
LEAD (II) BORATE MONOHYDRATE Chemical Properties
Melting point 160°C -H₂O
density 5.598
CAS DataBase Reference14720-53-7(CAS DataBase Reference)
EPA Substance Registry SystemBoric acid (HBO2), lead(2+) salt (14720-53-7)
Safety Information
RIDADR UN2291
HazardClass 6.1
PackingGroup III
MSDS Information
LEAD (II) BORATE MONOHYDRATE Usage And Synthesis
Physical propertiesLead Borate is a white crystalline powder. The metaborate loses water of crystallization at 160 °C and melts at 500 °C. It is insoluble in water and alkalies, but readily soluble in nitric and hot acetic acid.
UsesThe main use of lead metaborate is in glazes on pottery, porcelain, and chinaware, as well as in enamels for cast iron. Other applications include as radiation-shielding plastics, as a gelatinous thermal insulator containing asbestos fibers for neutron shielding, and as an additive to improve the properties of semiconducting materials used in thermistors.
Production MethodsLead metaborate may be produced by a fusion of boric acid with lead carbonate or litharge. It also may be formed as a precipitate when a concentrated solution of lead nitrate is mixed with an excess of borax. The oxides of lead and boron are miscible and form clear lead-borate glasses in the range of 21 to 73 mol% PbO.
LEAD (II) BORATE MONOHYDRATE Preparation Products And Raw materials
Raw materialsNitric acid-->Lead monoxide-->Lead(II) nitrate
Sodium oxide Sodium metaborate LEAD (II) BORATE MONOHYDRATE LEAD BORATE LEAD BORATE Lead

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