Cupric Oxide

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Other name: 
Cupric Oxide
Copper(II) oxide

C.I. Pigment Black 15

 

CAS No.: 1317-38-0

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.

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