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Ammonium iron(III) sulphate dodecahydrate, 500 g

≥98,5 %, p.a., ACS, ISO
Pack Qty.
Iron alum, Iron(III) ammonium sulphate, Iron ammonium alum
Empirical formula (NH4)Fe(SO4)2 · 12 H2O
Molar mass (M) 482,19 g/mol
Density (D) 1,71 g/cm³
Melting point (mp) 41 °C
CAS No. [7783-83-7]
EG-Nr. 233-382-4

Guarantee analysis

CHF41.90/Pack Qty. 

excl. VAT. | 500 g per Pack Qty.

Art. No. P734.1

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Ammonium iron(III) sulphate dodecahydrate
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P734.1 500 g plastic CHF41.90
P734.2 1 kg plastic CHF72.70
P734.3 2.5 kg plastic CHF151.10
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General information

Salts for Analysis

Salts for AnalysisOur salts for analysis are manufactured under strict production guidelines. Analytical purity and best quality reliably characterize each batch. Salts in p.a. quality made by Carl ROTH meet the high requirements for reproducible results. Most of our salts are additionally specified according to international standards like ACS and ISO.

p.a.: pro analysi (for analysis)ACS: American Chemical SocietyISO: International Standard Organisation

Certificates of Analysis

You can search for and download your certificate of analysis for the selected product here. Please provide your batch number.
The following analysis certificates have been found:

Guarantee analysis

Assay (iodom.)98,5-102,0 %  
In H2O insoluble matter≤0,005 %  
Substances not precipitated by ammonia≤0,05 %  
Chloride (Cl)≤0,0005 %  
Nitrate (NO3)≤0,01 %  
Lead (Pb)≤0,001 %  
Calcium (Ca)≤0,01 %  
Iron II (Fe II)≤0,001 %  
Potassium (K)≤0,005 %  
Copper (Cu)≤0,002 %  
Magnesium (Mg)≤0,001 %  
Manganese (Mn)≤0,005 %  
Sodium (Na)≤0,01 %  
Zinc (Zn)≤0,003 %  

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