七水硫酸锌

zinc sulphate heptahydrate
7746-19-7

湖南更新日期：2011-11-16

衡阳昱兴化工有限公司

非会员

联系人：vivian

电话：0086 15607345000拨打

邮箱：vivian@hybestselling.com.cn

产品详情:

中文名称：: 七水硫酸锌

英文名称：: zinc sulphate heptahydrate

CAS号：: 7746-19-7

▼

▲

zinc sulfate heptahydrate

▼

▲

Molecular Formula: ZnSO₄.7H₂O
Molecular Weight: 287.54
Properties: colorless rhombic system prismatic crystal, relative density: 1.957, M.P. 100℃,easily soluble in water(96.5g/100ml water at 20℃; 663.6g/100ml at 100℃), slightly soluble in alcohols and glycerol, will efflorescent in dry air; will loose all crystal water at 280℃; will be decomposed at 500℃ above; it is white or yellowish crystal, soluble in water, slightly soluble in alcohols and glycerol.
Quality Spec.:

▼

▲

Technical grade(HG/T2326-92)

Feed grade(HG/2934-2000)

Assay(ZnSO₄.7H₂O )≥98.0%

Assay(ZnSO4.H2O)≥97.3%

Zn ≥22.51%

Zn ≥22%

pH-value(50g/l solution)≥3.0

As ≥0.0005%

Chlorides ≤0.2%

Pb ≤0.0001%

Pb ≤0.002%

Cd ≤0.002%

Mn ≤0.001%

Fineness(through 250um sieve)≥95%

Cd ≤0.002%

Fe ≤0.005%

Cu ≤0.002%

Insol. in water ≤0.02%

Use: As raw material for light-type astringent and latex products; in the making of calamine; as skin protective agent; also used in the production of rayon, petroleum and catalysts; it is also widely used in rubber, paints and pharmaceutical industries.

七水硫酸锌工业级饲料级农业级