Calcium CH ligand with the bulkier C(CH) ligand on the other hand increases the compound's solubility, volatility, and kinetic stability. Natural calcium is a mixture of five stable isotopes (Ca, Ca, Ca, Ca, and Ca) and one isotope with a half-life so long that it can be considered stable for all practical purposes (Ca, with a half-life of about 4.3 × 10 years). Calcium is the first (lightest) element to have six naturally occurring isotopes. By far the most common isotope of calcium in nature is Ca, which makes up 96.941% of all natural calcium. It is produced in the silicon-burning
Calcium lactate Calcium lactate Calcium lactate is a white crystalline salt with formula , consisting of two lactate anions (CHOH) for each calcium cation . It forms several hydrates, the most common being the pentahydrate ·5. Calcium lactate is used in medicine, mainly to treat calcium deficiencies; and as a food additive with E number of E327. Some cheese crystals consist of calcium lactate. The lactate ion is chiral, with two enantiomers, D (−,"R") and L (+,"S"). The L isomer is the one normally synthesized and metabolized by living organisms, but some bacteria can produce the D form or convert the L