Does anybody know where I can get the following refills for my childs chemistry set?

Cobalt chloride
Ferrous sulphate
Copper sulphate
Tartaric acid
Methyl orange
Iron filings
Calcium hydroxide
Sodium carbonate
Ammonium carbonate


I would ideally like to be able to replace these locally so that I can do it sooner and probably cheaper.

I'll get back to you on this one, how much of each do you require?