Asking for detection method
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How to detect the iron nitrate content in solid iron nitrate catalyst?
For the analysis of salts, you first need to define whether the analysis of this salt is based on cations, anions, or dry salts? If nitrate is used as the basis, the nitrate analysis method can be used ； If it is based on cations, you can choose the iron ion analysis method ； If dry salt is used as the basis, its water content is analyzed and the dry basis content is obtained by subtraction. However, since ferric nitrate is a salt containing crystal water, it can also be based on crystal hydrate.
I can’t understand the sulfate detection method in the HG3-1394-81 standard. Can I ask for some guidance from an expert?
I didn’t find this standard, so I’ll share it for everyone to see.