Basic Zinc Carbonate 57.5% Min

Description

1. Zinc carbonate: ZnCO3.2Zn (OH)2. H2O
2. Strongest real manufacturer
3. ISO9001:2000
4. Market: domestic 30%, export 70%

zinc carbonate 57.5%

 

Molecular formula: ZnCO₃. 2Zn(OH)₂. H₂O
Molecular weight: 324.15

Chemical industry Standard of People' s Republic of China HG/T2523-93

 

ITEMS	INDEX
	High-Class	First-Class	Qualified
Zn % ≥	57.5	57.0	56.5
Loss on dry	25.0-28.0	25.0-30.0	25.0-32.0
Pb content % ≤	0.04	0.05	0.05
Moisture ≤	2.5	3.5	5.0
So4 % ≤	0.60	0.80	-
Fineness through 75 um Screen ≥	95.0	94.0	93.0
Cd content % ≤	0.10	-	-

 

Properties: white or yellowish fine amorphous powder, smell-less, tasteless. The proportion is 4.42-4.45, does not dissolve in water and alcohol, slightly soluble in ammonia, can dissolve in the diluted acid and the sodium hydroxide.

It is used in pigments, ceramics and the manufacture of crepe and sponge, being particularly

suitable when low pigmentation is desired. If has other uses in the paint industry and as an

activator in the rubber industry.

Resource:

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