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Zncl2 in Water

Trade Name:Zinc chloride
Transport hazard class(es): 8
CAS Number:7646-85-7
UN number:2331
Packaging group: III
Physical state: white powdery crystal
PACKING:25KG/BAG

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ZINC CHLORIDE

The physical preparation of zinc chloride typically involves the reaction of zinc metal with hydrochloric acid (HCl). First, zinc metal is placed in a reaction vessel, and hydrochloric acid is gradually added. The solution of it can be concentrated by evaporation, and upon cooling, it can be obtained. Alternatively, it can also be prepared by direct chlorination of zinc metal with chlorine gas at elevated temperatures.

Test items	Stand

Total Zinc Chloride 总锌(以ZnCl2计)%	≥98%

Acid Insoluble Matter 酸不溶物 %	≤0.02%

Basic Salt 碱式盐(以ZnO计)%	≤1.8%

Sulfate Salt 硫酸盐(以SO4计)%	≤0.01%

Iron 铁(以Fe计)%	≤0.0005

In the textile industry, it plays a vital role in dyeing and printing fabrics. It is used as a mordant, a chemical agent that helps fix dyes onto fibers. By enhancing the bond between the dye and the textile fibers, zinc chloride ensures that the color is more vibrant and long-lasting. This application is particularly important for synthetic fabrics like nylon and polyester, which can be challenging to dye without a mordant. Zinc chloride's ability to form strong complexes with various dyes also prevents fading over time, enhancing the durability of the colors. Additionally, it can be used to create specialized finishes on fabrics, such as water-repellent or flame-resistant treatments.

Zncl