Iron(II) Sulfate 7-hydrate (Reag. USP) for analysis, ACS

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Iron(II) Sulfate 7-hydrate (Reag. USP) for analysis, ACS
Content: 500 GRM
Physical Description:
solid
Quality Name: for analysis, ACS
Specification: Minimum assay (Perm.)@99.0%§pH of 5% solution@3-4§CHAR(13) + CHAR(10) Maximum limit of impurities@§Insoluble matter in H2O@0.005 %§Chloride (Cl)@0.001%§Nitrogen compounds (as N)@0.001%§Phosphate (PO4)@0.0005 %§Fe(III)@0.1%§As@0.00004 %§CHAR(13) + CHAR(10) Metals by ICP [in mg/Kg (ppm)]@§Be@10§Bi@10§Ca@50§Cd@50§Co@20§Cr@80§Cu@10§Hg@10§K@20§Mg@20§Mn@300§Mo@10§Na@20§Ni@50§Pb@5§Sr@10§Ti@10§Zn@20