Hangzhou Hongxin calcium Industry Co., Ltd.

Refined calcium hydroxide

Refined calcium hydroxide

Refined calcium hydroxide

In accordance with HG/T 4120-2009 (first grade)

1.Molecular formula: Ca(OH)2

2.Molecular weight: 74.096

3.Physical and chemical properties:

Soft white powder, with a strong alkalinity & hygroscopicity, density 2.24, bulk density 0.45-0.60, soluble in acid, rarely soluble in water, insoluble in alcohol, corrosive, moisture absorption is strong.

4.Characteristics and Uses

The effective Calcium hydroxide content in this product is more than 95%, with rare impurity and good Fineness; it is widely used in the manufacturing of bleaching powder, preparation of dye dispersant, water disinfection, neutral processing of acidic water, antacids, astringent and building materials, chemical industry, sugar industry, leather and other fields.

5.Main control index:

No. Project Content
1  Calcium hydroxide (as Ca(OH)2) %≥  Calcium hydroxide 96.0 95.0
2  Moisture %≤  Moisture 1.0 1.0
3  Iron (as Fe) %≤  Iron 0.1 0.1
4  Magnesium & Alkali  %≤  Magnesium & Alkali 3.0 3.0
5  Hydrochloride Insoluble  %≤  Insoluble hydrochloride 0.5 0.5
6  Fineness (325 Mesh residue)  %≤  325 Mesh residue 5.0 5.0


25kg/bag, plastic coated package or flexible freight bag or bulk.