5726. Manganese Carbonate

Nomenclature

CAS number: 598-62-9
CMnO3; mol wt 114.95.
C 10.45%, Mn 47.79%, O 41.76%.
MnCO3.

Description and references

(Usually contains some H2O). Occurs in nature as the mineral rhodochrosite.

Properties

Pink to almost white powder when freshly pptd, but gradually becomes light brown in the air. Rhombohedral, calcite structure. d 3.1. Insol in water or alcohol. Sol in dil acid. Keep well closed.

Use

As pigment—“manganese white”; drier for varnishes; in feeds.