Hangzhou Hongxin calcium Industry Co., Ltd.

Superfine calcium oxide

Superfine calcium oxide

Superfine calcium oxide

In accordance with Q/HHX 002-2012 Ⅰ

1.Molecular formula: CaO

2.Molecular weight: 56.08

3.Physical and chemical properties:

White powder, without peculiar smell, absorbs Moisture and becomes Calcium hydroxide, extremely easy to absorption of Moisture, short storage period. 

4.Properties & Uses

This product has high content of Calcium Oxide, good fineness and less impurity, is widely used in plastic products as moisture absorption agent, moistureproof agent, chemical synthesis, pharmaceuticals, food additives, sugar production, etc.
This product is a recommended product of China plastics industry association.

5.Main control index

No. Project Content
1  Calcium Oxide (as CaO)  %≥  Calcium Oxide 93.0
2  Iron (as Fe)  %≤  Iron 0.08
3  Magnesium Oxide %≤  Magnesium Oxide 1.0
4  Hydrochloride Insoluble   %≤  Insoluble hydrochloride 0.5
5  Aluminum Oxide   %≤  Aluminum Oxide 0.5
6  Loss on Ignition   %≤  Loss on Ignition 4.0
7  Fineness (800Mesh residue) %≤  800Mesh residue 5.0


25kg/bag, film bag lined woven bag, or flexible freight bag .