Why Is FeSO4 Not a Primary Standard?

[hags_63]

feso4 is not a primary standard??

hi ppl,
someone plssss help me---why is feso4 not a primary standard?

 

[chem_tr]

Hi

It cannot be a primary standard. Because it is not stable. A primary standard must be cheap, inert (stable), etc... You may want to do a google search about "primary standards".

 

[hags_63]

what about fas?

hi ,
thanks for ur reply but ferrous ammonium sulphate is not a primary standard acc to u??

 

[GCT]

You need to know the characteristics of a primary standard to answer the question, as some of the ones that chem tr has mentioned.