Zinc Chloride

  1. Molecular Formula: ZnCl₂

  2. Molecular Weight: 136.3

  3. CAS NO.: 7646-85-7

Description

Product name:

Zinc Chloride

Specification:

Index Standard Indicators
Total Zinc ( measured in ZnCl2) % ≥98.0
Acid insoluble matter % ≤0.02
Basic salt (measured in ZnO)% ≤1.8
Sulfate (measured in SO4) % ≤0.01
Iron (Fe )% ≤0.0005
Lead (Pb) % ≤0.0003
Barium (Ba)% ≤0.05
Calcium (Ca)% ≤0.2
Moisture% <0.5
Appearance White powder

 

Properties:
A white, deliquescent crystalline solid, zinc chloride (ZnCl₂) has a density of 2.907 g/cm³ and a molar mass of 136.315 g/mol, melting at 290 °C and boiling at 732 °C; it is odorless, highly soluble in water (432 g per 100 mL at 25 °C) and also dissolves readily in ethanol, glycerol and acetone.As a Lewis acid, anhydrous zinc chloride forms complexes with many bases and releases acidic, corrosive fumes upon hydrolysis or heating.

Application:
In industry, zinc chloride serves as a versatile reagent and additive: it functions as a mordant in textile processing to improve dye uptake and colorfastness, and as a flux—often mixed with ammonium chloride—in soldering and galvanizing to cleanse metal surfaces and promote strong joints. It is widely employed as a catalyst in organic syntheses (for example, in the production of benzaldehyde from toluene), as a dehydrating and wood-preserving agent, and in specialty applications such as battery electrolytes, metal plating and smoke-screen formulations

Package and Storage:
25KG/Bags.Stored in a cool, dry, well-ventilated warehouse at ambient temperature (ideally 2–40 °C).Away from moisture and incompatible materials (strong bases, oxidizers, metals), with containers kept tightly closed.