| Chemical Formula |
NH4I
|
| |
CAS No. 12027-06-4 |
| |
|
| Molecular Weight |
144.94 |
| |
|
| Properties |
|
| Boiling Point |
235°C (Vacuum) |
| |
Sublimates at 551°C
|
| Specific Gravity |
d 2.51 |
| Humidity absorption |
:It strongly absorbes
moisture, becoming deliquescent in the air. |
| |
| Appearance |
White crystalline
powder |
| |
| Solubility |
| In water |
154.2 g/100 g (0°C) |
| |
177.0 g/100 g (25°C) |
| |
250.3 g/100 g (100°C) |
| |
Soluble in alcohol, acetone,
and aqueous ammonia, but nearly insoluble in ether. |
| |
|
| Reactivity |
The aqueous
solution is easily oxidized. In the presence of air and/or
light, iodine is released, turns yellow or brown color.
- Source: Chemical Dictionary |
| |
|
| Specifications |
|
| Item |
ISE Standard |
JIS K8910-1975, Special
Class |
| Appearance (color) |
Yellow |
Slightly yellow |
| Miscibility with water |
To pass test |
To pass test |
| Drying Loss (105°C) |
0.07% max |
0.5% max. |
| Combustion residue (sulfate) |
0.05% max |
0.005% max |
| Free iodine |
To pass test |
To pass test |
Chloride and Bromide
(as CI) |
0.1% max |
0.1% max |
| Sulfate (SO4)
|
0.05% max. |
0.002% max. |
| Phosphates (as PO4) |
0.002% max. |
0.002% max. |
| Heavy metals (as Pb) |
0.004% max. |
0.001% max. |
| Iron (Fe) |
0.003% max. |
0.0005% max. |
| Barium (Ba) |
0.002% max. |
0.002% max. |
| Assay (after drying at
105ºC) |
99.5% min. |
99.5% min. |
| |
|
|
|
| Packaging |
|
|
| Inside packing |
Black polyethylene sack |
| Outside packing |
Corrugated cardboard
box |
| Net weight |
20kg |
|
|
| Applications |
Medicines
Photographic chemicals intermediate |
| |
| Health
Hazards |
1) Fire and
explosion: Noncombustible
2) Toxicity: The fumes generated by the decomposition
of ammonium iodide solution irritate eyes and mucous membranes,
and causes tracheal edema. Care must be taken not to inhale
the fumes. |
| |
| Handling
& Storage |
The container
must be sealed, and stored in a dry and dark place. In
handling, rubber gloves and other protective garments
must be worn, and the container must be closed as soon
as possible.
|
