Arkadiusz Szpakowski © Instytut Metali Nieżelaznych Oddział w Legnicy

Zinc chloride - crystalline

Zinc chloride - hydrated

45% ZnCl2

Zinc chloride  - concentrated

76% ZnCl2

Form

Solid

Liquid

Colour

white

Colourless

Colourless or slightly yellow

Smell

odourless

pH

4,0 – 5,0 (20 C)

2 – 3 (20 C)

Melting point

315 - 326 st. C

Boiling point

733 C (in 650 - 700 C forms white, dense steam of evaporated ZnCl2)

Flash - point

Not applicable

Selfignition temperature

Not applicable

Flammability

Not applicable

Explosive limit

Not applicable

Relative density

about 2,9 kg/dm3 in 20 C

about 1,5 kg/dm3 in 20 C

about 1,8 - 2,0 kg/dm3 in 20 C

Water solubility

3680 g/l (20 C) – in terms of 100% ZnCl2

Molecular weight

136,28