Cupric Oxide

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Other name: 
Cupric Oxide
Copper(II) oxide

C.I. Pigment Black 15

 

CAS No.: 1317-38-0

Molecular Formula: 

CuO

Molecular Weight: 79.55
 

Characters: Black or brownish black amorphous crystalline powder,monoclinic crystal, specific wt.: 6.315,m.p.: 14460C, insoluble in water and ethanol, soluble in diluted acid, ammonia water, ammonium chloride, sodium hydroxide and potassuim cyanide.
 

Specifications:

Cupric Oxide A.P. C.P. Technical first grade Technical second grade
Item Spec. Spec. Spec. Spec.
Assay(CuO) % ≥99.0 ≥98.0 ≥98.0 ≥97.0
Insol. in Hcl % ≤0.02 ≤0.05 ≤0.2 ≤0.2
Chlorides(Cl)% ≤0.003 ≤0.005 ≤0.10 ≤0.10
Sulfur compound(SO4)% ≤0.01 ≤0.05 ≤0.10 ≤0.10
Nitrogen compound(N) % ≤0.002 ≤0.005
Carbon compound ≤0.025 ≤0.10
Fe% ≤0.01 ≤0.04
Cuprous oxide(Cu2O)% ≤0.05 ≤0.10
Non-precipitate in sulfureted hydrogen % ≤0.2 ≤0.5
Water insoluble% ≤0.10 ≤0.10
Fineness(100-mesh sieve residue) % ≤2 ≤5
         

Cupric Oxide Export AR grade Electro-plating Cupric Oxide Electronic grade Air bag grade
Item Spec. Spec. Spec. Spec.
Assay(CuO) % ≥98.0 ≥98.5 ≥98 ≥98
Insol. in Hcl % ≤0.02 ≤0.01 ≤0.10 ≤0.2
Chlorides(Cl) % ≤0.005 ≤0.06 ≤0.08 Moisture≤0.3
Sulfur compound(SO4)% ≤0.02 ≤0.01 ≤0.08 PH5.5-7.5
Zn% ≤0.02
Pb% ≤0.02 ≤0.01 ≤0.010
Fe% ≤0.05 ≤0.05
Cd% ≤0.0005
Hg% ≤0.0002
C% ≤0.05
N% ≤0.005
As% ≤0.0002
Ca% ≤0.02
Cuprous oxide(Cu2O)% ≤0.05 ≤0.2
K% ≤0.02
Na% ≤0.02
Sexavalence Cr % ≤0.0002
Water insoluble% ≤0.05 ≤0.10 ≤0.10 D501.5
Fineness(125-mesh sieve residue) % ≤0.1 325-mesh sieve residue≤0.3 100 meshes ≤2

Product Usage: It is used for firework, bactericides, glass, artificial rain materials, ceramics, catalyst, rayon etc.

Packaging: In 25Kg/woven bag lined with double-layer plastic bag or iron drum, closed tightly.

Storage Precautions: stored in dry and draughty warehouse, prevent dampness; isolated from strong acids or food; fight fire with water.


Cupric Oxide


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