Sulfur in Fertiliser: What Does it Mean?

[Stroodle]

Hi,

I'd just like to know why fertiliser producers refer to "the percentage by mass of sulfur present as sulfate" in their fertilisers?

Thanks!

 

[PhaseShifter]

Do you know the solubility rules for sulfates, sulfides and elemental sulfur?

 

[Stroodle]

Nope. Unfortunately i don't :(

 

[chemisttree]

So they don't have to speciate it.