Limestone Powder

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Vostosun could provide powder and block limestone products including CaCO3 (GCC or PCC), CaO and Ca(OH)2 with 400 mesh, 800 mesh, 1250 mesh, 1500 mesh, 2500 mesh, and whiteness degree from 84 to 95. The color of limestone powder has many choices, like cyan, cream white, yellow or made according to the requirements of customers.

Parameters

Test items	Norm (%)
Ca(OH)₂	95.0～97.0
Mg and alkali metals (carbonate test)	≤2.0
Acid-insoluble substance	≤0.1
As	≤0.0002
F	≤0.005
Pb	≤0.0002
Heavy metal (in Pb)	≤0.001
Drying loss	≤1.0
residue on sieve (0.045mm)	≤0.4

Parameters

CaCO₃ grade	High purity	Technical grade	General grade	Building grade
CaCO₃ content	＞99.0%	＞95.0%	＞90.0%	＞80.0%
moisture	＜1.0%	＜1.0%	＜1.0%	＜1.0%

Applications
Limestone powder can be widely used in chemical plants, construction material plants, power plants, steel mills, metallurgical processing plants, paint processing plants, etc. For instance, it can be used as epoxy chloropropane in desulfurization of power plant, stabilizer for plastic processing, softener for drinking water production, additive of ceramic production and etc.