Ammonium iron (II) sulfate hexahydrate AGR ACS, USP, NF

(NH₄)₂Fe(SO₄)₂·6H₂O
Mohr’s salt
M.W: 392.14  CAS: 7783-85-9  EC: 233-151-8  TARIC: 28429080

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• Appearance ? Greenish blue crystals / crystalline powder
• Assay 99.0 – 101.5%
• Insoluble matter ? 0.01%
• Phosphate (PO₄) ? 0.003%
• Calcium (Ca) ? 0.005%
• Copper (Cu) ? 0.003%
• Iron III (Fe (III)) ? 0.01%
• Manganese (Mn) ? 0.01%
• Magnesium (Mg) ? 0.002%
• Potassium (K) ? 0.002%
• Sodium (Na) ? 0.02%
• Substance not precipitated by NH4OH ? 0.05%
• Zinc (Zn) ? 0.003%

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