Name: Cuprous oxide
Synonyms: Copper(I) oxide
CAS No.: 1317-39-1
Formula: Cu2O
M.W.: 143.09
Properties: Red powder. Specific Wt.: 6.00 m.p.: 12350C B.P.: 18000C. Cuprous oxide can be easily oxidized in humid air, soluble in acids and ammonia water, ammonium chloride, insoluble in water and alcohols. Will be slowly oxidized into cupric oxide in humid air; stable in dry air; toxic.
Specifications:
Item |
Technical specification |
||
Cuprous oxide 97% min |
Cuprous oxide 96% min |
Cuprous oxide 95% min |
|
Cuprous oxide(Cu2O)% |
≥97 |
≥96 |
≥95 |
Copper content(Cu)% |
≤1.0 |
≤2.0 |
≤2.5 |
Total percent reduction(asCu2O)% |
≥98 |
≥97 |
≥96 |
Total copper(Cu)% |
≥87 |
≥86 |
≥86 |
Chlorides(Cl) % |
≤0.2 |
≤0.5 |
—— |
Sulphates(SO4)% |
≤0.1 |
≤0.5 |
—— |
Water% |
≤0.5 |
≤0.5 |
≤0.5 |
Sol. in acetone % |
≤0.5 |
≤0.5 |
—— |
Stability test |
≤2.0 |
≤2.5 |
≤2.5 |
Fineness(45um sieve residue) % |
≤0.3 |
≤0.5 |
—— |
100-mesh sieve residue≤0.5 |
—— |
—— |
≤0.5 |
Insol. in nitric acid 75um sieve residue% |
≤0.1 |
—— |
—— |
Fe% |
≤0.05 |
≤0.05 |
—— |
As% |
≤0.02 |
≤0.02 |
≤0.025 |
Moisture% |
≤0.5 |
≤0.5 |
—— |