Sell: Zinc Sulfate Heptahydrate /Zinc Sulphate Heptahydrate

Description

Zinc sulfate heptahydrate  / Zinc sulphate heptahydrate

Molecular formula:ZnSO4.7H2O  Molecular weight: **7.*6
CAS NO.: ********0            EINECS NO.:********3
Appearance: White crystal powder
Grade: Industrial grade

Property：white granular or power, orthorhombic crystals, convergent, in dry air will chalking. Heated to 0 ℃will lost part of crystalline water, to **0℃will lost six molecules of water of crystallization, and lost seven molecules of water of crystallization at **0℃, at **7℃will be decomposed into ZnO and SO3. Soluble in water, slightly soluble in ethanol and glycerin, it needs to keep sealed.

Usage: Mainly used as the raw material for zinc barium and other zinc salts, auxiliary materials for viscose fiber and Vinylon fibers. It also used for dyeing mordant, wood and leather preservative, glue clarifies and preservative, pharmaceutical emetic and fungicides. In agriculture, it can be used to trace element fertilizers.

Packaging: In *5kg or *0kg plastic woven bags within PE liner.

Items                                                     Specification
Major components Zn %≥                           *2
 ZnSO4 7H2O %≥                                       *8
Insoluble substance % ≤                             0.**0
pH-value (*0g/l solution)≥                           3.0
Chloride (Cl) content ≤%                             0.*0
Pb %≤                                                        0.**2
Fe %≤                                                        0.**5
Mn %≤                                                        0.*1
Cd %≤                                                        0.**2
Cu %≤                                                        0.**2