Ammonium Citrate Dibasic, Reagent A.C.S.

Assay:98.0-103.0% (NH4)2HC6H5O7
MAXIMUM ALLOWABLE 
Insoluble matter: 0.005%
Residue after ignition: 0.01%
Chloride (Cl): 0.001%
Heavy metals (as Pb): 5 ppm
Iron (Fe): 0.001%
Oxalate (C2O4): Passes test
Phosphate (PO4): 5 ppm
Sulfur compounds ( as SO4): 0.005%
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