Description

Odor: slightly efflorescent

Density: 1.**4 g/cm3

Melting point: **0 °C (anhydrous)
               **0 °C (pentahydrate)
 
Solubility in water: 7.9 g/**0 mL (*0 °C)

Solubility: very soluble in ethanol

Acidity (pKa): 6.**8.5

Refractive index (nD): 1.**0

Uses:
In medicine, calcium lactate is most commonly used as an antacid and also to treat calcium deficiencies. Calcium lactate can be absorbed at various pHs and does not need to be taken with food for absorption for these reasons.

Calcium lactate is added to sugar-free foods to prevent tooth decay. When added to chewing gum containing xylitol, it increases the remineralization of tooth enamel.[1] It is also added to fresh-cut fruits such as cantaloupes to keep them firm and extend their shelf life, without the bitter taste caused by calcium chloride, which can also be used for this purpose.[2]

It is also found in some over the counter (OTC) mouth washes.