| Molecular Formula |
Cu I
|
| |
CAS No. 7681-65-4 |
| |
| Molecular Weight |
190.45 |
| |
| Properties |
| True specific gravity |
d25 5.63 |
| Melting point |
605°C |
| Boiling point |
1336°C |
| |
|
| Appearance |
White or
slightly reddish white powder, or crystalline powder. |
| |
|
| Solubility |
|
| Almost completely
insoluble in water. Largely insoluble in dilute acids
and alcohols soluble in acids, aqueous ammonia, hydrocyanic
acid, thiosulfuric acid, and aqueous solutions of alkali
salts of iodine. |
| |
| Reactivity |
| Decomposed by concentrated
sulfuric acid and concentrated nitric acid. Thermally
decomposes above 350 - 400ºC in air. |
| |
| Specifications |
| Item |
ISE Standard |
None of JIS Spec |
| Appearance |
Grayish white |
|
| Sulfate (SO4) |
0.005% max. |
|
| Free iodine (I) |
0.03% max. |
|
| Heavy metal (as Pb) |
0.005% max. |
|
| Iron (Fe) |
0.005% max. |
|
| Chromium (Cr) |
0.003% max. |
|
| Arsenic (As) |
0.005% max. |
|
| Drying loss |
0.07% max. |
|
| Assay |
99.0% min. |
|
| |
| Packaging |
| Inside packing |
Double polyethylene sack. |
| Outside packing |
Fiber drum |
| Net weight |
50 kg |
|
|
| Applications |
| Catalyst
in organic reactions, Heat-sensitive paper, Cathode ray
tube coating. |
| |
| Health
Hazards |
| |
Fire and explosion
|
: Noncombustible,
non-explosive |
| Gas generation |
none |
| Toxicity |
LD50
(oral) 4192 mg/kg (mouse) |
| |
| Handling
& Storage |
1)
Contact with the skin (especially bruised portions) or
eyes will cause inflammation. Large amounts taken orally
or inhaled in dust form will cause toxication.
2) Protective gloves must be worn during handling, and
the use of dust protection goggles is recommended. |
| |
| Spillage |
| Spilled powder
should be returned to the container with shovels or gloved
hands, and tightly covered. The residue must be washed
away with an aqueous solution of thiosulfuric acid (5%
Hypo) and rinsed with a large amount of water. |
