Ammonium Iron(III) Sulphate 12-hydrate PRS
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
HAZARDOUS: RTECS: WS 5900000 ·
SPECIFICATIONS:
| Assay (Iodom.) | 97-102 % |
| Insoluble matter in H2O | 0,01 % |
| Chloride (Cl) | 0,01 % |
| Ca | 0,03 % |
| Cu | 0,005 % |
| Mg | 0,03 % |
| Pb | 0,005 % |
| Zn | 0,01 % |