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Ammonium ferric sulfate dodecahydrate

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Ammonium ferric sulfate dodecahydrate Basic information

Product Name:
Ammonium ferric sulfate dodecahydrate
CAS:
7783-83-7
MF:
FeH28NO20S2
MW:
482.19
EINECS:
616-517-5
Mol File:
7783-83-7.mol
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Ammonium ferric sulfate dodecahydrate Chemical Properties

Melting point:
39-41 °C(lit.)
Boiling point:
230 °C
Density 
1.71
storage temp. 
Store at RT.
solubility 
H2O: 1 m at 20 °C, complete, yellow-brown to red brown
form 
Solid
Specific Gravity
1.71
color 
slightly violet
Odor
Odorless
PH
1.8 (100g/l, H2O, 20℃)
PH Range
1
Water Solubility 
1240 g/L (25 ºC)
Merck 
14,521
CAS DataBase Reference
7783-83-7(CAS DataBase Reference)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/38-36/37/38
Safety Statements 
26-36/37-24/25-36
WGK Germany 
3
RTECS 
WS5900000
3
TSCA 
Yes
PackingGroup 
III
HS Code 
28333000

MSDS

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Ammonium ferric sulfate dodecahydrate Usage And Synthesis

Chemical Properties

slightly grey-purple adhering crystals or powder

Uses

Medicine, analytical chemistry, textile dyeing (mordant).

Definition

Ferric alum: One of the alums,K2SO4.Fe2(SO4)3.24H2O, in which thealuminium ion Al3+ is replaced bythe iron(III) (ferric) ion Fe3+.

Purification Methods

Crystallise it from aqueous ethanol.

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021-58432009
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