Iron (II) Sulphate 7-Water

Product Code :  S0001165-500G
Brand:  BRECKLAND SOLUTIONS
Assay:  98%
CAS:  7782-63-0
Index No.:  026-003-01-4
EC No.:  231-753-5
Formula:  FeSO₄ · 7H₂O
Synonyms:  Ferrous Sulphate
Info:  0
UN Hazard Class:  N/A
UN Number:  N/A
UN Packing Group:  NA

Q = When I dissolve this in water the solution turns brown or cloudy. What can I do to prevent this?
A = Iron (ll) sulphate should be dissolved in distilled or deionised water as some tap water can cause problems, due to dissolved minerals or ions. The addition of a few drops of sulphuric acid can be used to clear the solution or prevent it from discolouring. Solutions are better made up freshly each time, before use.