Cuprous Oxide

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Other name: 

Copper(I) Oxide

Cuprous Oxide
copper(I) oxide
Cuprous oxide
copper(1+) oxide
Curpous oxide
copper oxide (Cu2O)

CAS No.: 1317-39-1

Molecular Formula: 


Molecular Weight: 143.09

Characters: Red powder. Specific wt.: 6.00,m.p.: 12350C,b.p.: 18000C. 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. 


Cuprous oxide LR Best technical grade Technical first grade Agricultural grade
Item Spec. Spec. Spec. Spec.
Cuprous oxide(Cu2O)% ≥98 ≥97 ≥96 ≥95
Copper content(Cu)% ≤1.0 ≤2.0?/DIV> ≤2.5
Total percent reduction(asCu2O)% ≥98 ≥97 ≥96
Total copper(Cu)% ≥87 ≥86 ≥86
Chlorides(Cl) % ≤0.2 ≤0.2 ≤0.5
Sulphates(SO4)% ≤0.02 ≤0.1 ≤0.5
Water% ≤0.2 ≤0.5 ≤0.5 ≤0.5
Sol. in acetone % ≤0.5 ≤0.5
Stability test ≤2.0 ≤2.5?/DIV> ≤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 ≤0.05
As% ≤0.002 ≤0.02 ≤0.02 ≤0.025
Moisture% ≤0.5 ≤0.5
Non-precipitate in sulfureted hydrogen % ≤1

Product Usage: It is used for ship bottom anti-fouling paint, bactericides, ceramic colorant, glass staining agent, and analytical reagent etc.

Packaging: In 25Kg composite paper bag lined with plastic bag, closed tightly.

Storage Precautions: Stored in dry and draughty warehouse; no mixing with oxidants; containers should be sealed tightly to prevent air; kept away from strong acids, alkali and food; fight fire with water.

Cuprous Oxide

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