Packings
01180
Article No. 01180
Purity 98.5%
Molecular Formula NH4Fe(SO4)2.12H2O
H.S. Code 2833.2990
Grade AR/ACS
CAS No. 7783-83-7
Molecular Weight 482.19
Shelf Life 60 Months

Physical Properties

Specifications

Safety Information and Hazard Symbols

Symbol:


Physical Properties

Physical state at 20 °C Solid Colour Pale violet crystals
Odour Odorless pH value 1
Melting point/ Freezing point [°C] 39 - 41 °C Density [g/cm3] 1.71
Solubility in water [% weight] 482.2 g/l at 20 °C

Specifications

Appearance Pale violet crystals Assay (iodometric) 98.5 - 102%
Insoluble matter Max 0.01% Chloride (Cl) Max 0.001%
Ferrous ion (Fe2+) Passes test (about 0.001%) Nitrate (NO3) Max 0.01%
Calcium (Ca) Max 0.01% Magnesium (Mg) Max 0.005%
Potassium (K) Max 0.005% Sodium (Na) Max 0.02%
Copper (Cu) Max 0.003% Zinc (Zn) Max 0.003%
Substance not precepitated by NH3 (as SO4) Max 0.05%

Safety Information and Hazard Symbols

Exclamation Mark              

Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319
Precaution Statement: P305 + P351 + P338