title: A novel method for preparation of cobalt(II) and lead(II) carbonates.
abstract: Cobalt(II) carbonate, CoCO3.4H2O and lead(II) carbonate, PbCO3.2H2O were synthesis by a new simple method during the reaction of aqueous solutions of CoX2 (X=Cl-, NO3- and CH3COO-) and PbX2 (X=NO3- or CH3COO-), respectively, with urea at approximately 85 degrees C for 2 h. The infrared spectra of the reaction products clearly indicates the absence of the bands due to coordinated urea, but show the characteristic bands of ionic carbonate. A general mechanisms describing the formation of cobalt and lead carbonates are suggested.
authors.affiliation: Department of Chemistry, Faculty of Education, Suez Canal University, Mohamed Ali Street, Port-Said, Egypt. msrefat@yahoo.com
authors.forename: M S
authors.initials: MS
authors.lastname: Refat
authors.forename: S M
authors.initials: SM
authors.lastname: Teleb
authors.forename: S A
authors.initials: SA
authors.lastname: Sadeek
mesh_terms: D002254:Carbonates / Q000138:chemical synthesis / Q000302:isolation & purification*; D003035:Cobalt / Q000302:isolation & purification*; D007854:Lead / Q000302:isolation & purification*; D013054:Spectrophotometry, Atomic; D017550:Spectroscopy, Fourier Transform Infrared; D014508:Urea
chemical_list: D002254:Carbonates; D007854:Lead; D003035:Cobalt; C043262:lead carbonate; D014508:Urea