Naked Science Forum

Non Life Sciences => Chemistry => Topic started by: zincsulfate on 21/10/2011 07:15:34

Title: Why do zinc sulphate crystals look the way they do?
Post by: zincsulfate on 21/10/2011 07:15:34

Hi to all,
Recently, there is a question bothered me,why zinc sulfate will be agglomerated?

Title: Re: Why do zinc sulphate crystals look the way they do?
Post by: lightarrow on 21/10/2011 21:17:41

What do you mean with "agglomerated" and which situation are you referring to?

Title: Re: Why do zinc sulphate crystals look the way they do?
Post by: zincsulfate on 28/10/2011 11:08:00

It means,they will be caked.
Zinc sulfate heptahydrate looks like crystalline powder,and it likes the snow melted,but I don't know what's reason makes it caking~~~`

Title: Re: Why do zinc sulphate crystals look the way they do?
Post by: lightarrow on 28/10/2011 20:27:26

Ok, now another question: it is a result of a laboratory reaction (sulphuric acid + zinc or zinc oxide, hydroxide, carbonate) or it's a pure compound buyed?
I remember that sodium hydrogensulphate NaHSO₄ I get from a personal laboratory synthesis (sulphuric acid + sodium carbonate), had exactly that appearance.

Title: Re: Why do zinc sulphate crystals look the way they do?
Post by: Bored chemist on 29/10/2011 00:30:47

http://en.wikipedia.org/wiki/Hygroscopy