lanthanum carbonate lanthanum carbonate lanthanum carbonate, la2(co3)3, is the salt formed by lanthanum(iii) cations and carbonate anions. it is an ore of lanthanum metal (bastnäsite), along with monazite. lanthanum carbonate names iupac name lanthanum carbonate identifiers cas number 587-26-8 y 3d model (jsmol) interactive image chembl chembl2096647 y chemspider 147758 y echa infocard 100.008.728 ec number 209-599-5 pubchem cid 168924 unii 0m78eu4v9h y comptox dashboard (epa) dtxsid30890512 inchi inchi=1s/3ch2o3.2la/c3*2-1(3)4;;/h3*(h2,2,3,4);;/q;;;2*+3/p-6 ykey: nzpiujufifzspw-uhfffaoysa-h yinchi=1/3ch2o3.2la/c3*2-1(3)4;;/h3*(h2,2,3,4);;/q;;;2*+3/p-6key: nzpiujufifzspw-cyfpfddlat smiles ..o=c().c()=o.c()=o properties chemical formula la2(co3)3 molar mass 457.838 g/mol appearance white powder, hygroscopic density 2.6–2.7 g/cm3 melting point decomposes solubility in water negligible solubility soluble in acids pharmacology atc code v03ae03 (who) related compounds other anions lanthanum(iii) oxide except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). n verify (what is yn ?) infobox references chemistry lanthanum carbonate is used as a starting material in lanthanum chemistry, particularly in forming mixed oxides, for example for production of lanthanum strontium manganite, primarily for solid oxide fuel cell applications; for production of certain high-temperature superconductors, such as la2-xsrxcuo2. medical uses lanthanum carbonate is used in medicine as a phosphate binder. as a medication it is sold under the trade name fosrenol by the pharmaceutical company shire pharmaceuticals. due to its large size (1000 mg tablet is 2.2 cm in diameter), it may be possible to choke on the tablet if it is not chewed. it is prescribed for the treatment of hyperphosphatemia, primarily in patients with chronic kidney disease. it is taken with meals and binds to dietary phosphate, preventing phosphate from being absorbed by the intestine. for cats with hyperphosphatemia it is available under the trade name renalzin by bayer animal health. however, when lanthanum carbonate is used for treating hyperphosphatemia, its side effects, namely myalgia, muscular cramping, and peripheral edema, should be clinically monitored. other applications lanthanum carbonate is also used for the tinting of glass, for water treatment, and as a catalyst for hydrocarbon cracking.