Zinc chloride

[deepk`]

hiii guys...

plz tell me how can i make zinc chloride commercially....... is ant equipments is require for making of ZnCl2.

plz help me.............thanks in advance

[hypervalent_iodine]

Based on your previous threads I have to ask you, what is this for?

 

Anyway, this is from wikipedia (in future, you should try research your questions yourself. Questions like these a relatively simple to get answers to using Google).:

 

Anhydrous ZnCl₂ can be prepared from zinc and hydrogen chloride.Zn + 2 HCl → ZnCl₂ + H₂ Hydrated forms and aqueous solutions may be readily prepared similarly by treating Zn metal with hydrochloric acid. Zinc oxide and zinc sulfide react with HCl:

 

ZnS(s) + 2 HCl → ZnCl₂(aq) + H₂S(g)Unlike many other elements, zinc essentially exists in only one oxidation state, 2+, which simplifies purification of the chloride.

 

Commercial samples of zinc chloride typically contain water and products from hydrolysis as impurities. Such samples may be purified by recrystallization from hot dioxane . Anhydrous samples can be purified by sublimation in a stream of hydrogen chloride gas, followed by heating the sublimate to 400 °C in a stream of dry nitrogen gas. Finally, the simplest method relies on treating the zinc chloride with thionyl chloride.

In terms of equipment, you need basic glassware such as Erlenmeyer flasks, a hot plate, access to well ventilated areas, personal protective gear (goggles, etc.). If this is a home set up, I wouldn't recommend going for the anhydrous stuff. Dioxane can be pretty nasty if you somehow ingest it as well, so please be careful. Also, hydrogen sulphide smells awful (it's responsible for the smell of rotten eggs) and is very toxic. Also, it is explosive when in contact with air. So really, just don't do this at all if this is a home set up.

Edited February 3, 2011 by hypervalent_iodine

[John Cuthber]

The commercial synthesis of zinc chloride would require a rather big Erlenmeyer flask

Also, on a commercial scale you would have to do something about the H2S.