quality calcium carbonate lump
content 97%min
limestone all kinds of specifications and sizes
bulk container
ISO 9000/9001

quality calcium carbonate lump

quality calcium carbonate lump

calcium carbonate powder:

 specification: 

Calcium carbonate content: 97%min

Acid insoluble: 0.6%max

Iron content: 0.006max

Manganese content: 0.006%max

Residure on mesh 325 sieve: 0.5%max

PB heavy metal: 0.0003%max

It is mainly used for paper-making, painting, plastic etc.