PRODUCT CODE:

131365

Ammonium Iron(III) Sulphate 12-hydrate (Reag. Ph. Eur.) PA-ACS-ISO

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H₄FeNO₈S₂.12H₂O

NH₄Fe(SO₄)₂.12H₂O

M.= 482,19	CAS [7783-83-7]	EINECS 233-382-4
NC 2833 30 00

SYNONYMS: Iron(III) Ammonium Sulphate ˇIron Alum ˇ
PHYSICAL DATA: Pale violet crystals · Solubility in water at 25 ēC 1240 g/l · D: 1,71 ·
APPLICATIONS: Analytical reagent : RFE ˇ USP 25 ˇ BP ˇ Ph. Eur. IV ˇ
BIBLIOGRAPHY: Merck Index 12 , 549 13 , 520 ˇ Safety 2 , 241 A ˇ ACS IX , 303 X , 320 ˇ ISO 6353/3-1987 R-43 , 5 ˇ

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HAZARDOUS: RTECS: WS 5900000 ·

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SPECIFICATIONS:

Assay (Iodom.)	98,5-102,0%
MAXIMUM LIMIT OF IMPURITIES
Insoluble matter in H2O	0,005 %
Non-precipitated substances by NH4OH	0,05 %
Chloride (Cl)	0,0005 %
Nitrate (NO3)	0,01 %
Ca	0,01 %
Cu	0,002 %
Fe(II)	0,001 %
K	0,005 %
Mg	0,001 %
Mn	0,005 %
Na	0,01 %
Pb	0,001 %
Zn	0,003 %