Other name : Copper Sulfate, Copper(II) Sulfate
CAS No. : 7758-99-8
Formula: CuSO₄· 5H₂O
MW: 249.68
Characters: Blue or thorhombic crystal, density 2.284g／cm3. Cupric sulfate will gradually lose water at different temperatures. Cupric sulphate anhydrous is white powder; density: 3.603g／cm3; easily soluble in water, solubility in water at 25℃: 23.05g／100g of water, insoluble in ethanol and ether; high hydroscopicity.
Specifications:

Cupric Sulfate	Export AR grade	A. R.	C. P.	USP31	PCB grade	Fine grade	HG/T35921999 Electroplating Grade	Feed grade
Assay(CuSO4· 5H2O)%	≥ 99.5	≥ 99.0	≥ 99.0	98.5~100.5	≥ 99.0	≥ 99.0	≥ 98.5	≥ 98.5
Copper(Cu) %	— —	— —	— —	— —	≥ 25.15	≥ 25.15	≥ 25.0	≥ 25.0
Water insoluble%	≤ 0.003	≤ 0.005	≤ 0.01	— —	≤ 0.005	≤ 0.02	≤ 0.005	≤ 0.2
Chlorides (Cl) %	≤ 0.0005	≤ 0.001	≤ 0.002	— —	≤ 0.002	≤ 0.02	≤ 0.001	— —
Total Nitrogen(N)%	≤ 0.002	≤ 0.001	≤ 0.003	— —	≤ 0.001	≤ 0.001	≤ 0.001	— —
Lead (Pb)%	— —	— —	— —	— —	≤ 0.005	≤ 0.005	≤ 0.005	≤ 0.001
Iron (Fe)%	≤ 0.002	≤ 0.003	≤ 0.020	≤ 0.003	≤ 0.005	≤ 0.01	≤ 0.005	— —
Sodium (Na)%	≤ 0.005	≤ 0.005	≤ 0.015	≤ 0.02	— —	≤ 0.005	— —	— —
Potassium (K)%	≤ 0.001	≤ 0.001	≤ 0.004	≤ 0.01	— —	≤ 0.001	— —	— —
Nickel (Ni)%	≤ 0.002	≤ 0.005	≤ 0.015	≤ 0.005	≤ 0.0005	≤ 0.005	≤ 0.0005	— —
Calcium (Ca)%	≤ 0.001	— —	— —	≤ 0.005	≤ 0.0005	— —	— —	— —
Antimony (Sb)%	— —	— —	— —	— —	≤ 0.006	— —	≤ 0.006	— —
Arsenic (As)%	≤ 0.0001	— —	— —	— —	≤ 0.0005	— —	— —	≤ 0.0004
Magnesium (Mg) %	≤ 0.001	— —	— —	— —	— —	— —	— —	— —
Loss on drying%	— —	— —	— —	33.0~36.5	— —	— —	— —	— —
PH(5%20℃)	3.8-4.5	— —	— —	— —	3.5-4.5	3.5-4.5	3.5-4.5
Organic volatiles	— —	— —	— —	Pass	— —	— —	— —	— —
Zinc (Zn)%	≤ 0.002	≤ 0.03	≤ 0.06	— —	≤ 0.02	≤ 0.03	≤ 0.002	— —
Fineness(60-mesh sieve residue) %	— —	— —	— —	— —	— —	— —	— —	≤ 5

Product Usage: It is used in trace mineral supplement, bactericides, beneficiation reagent, dye mordant etc. And it' s mainly used in acid copper electro-plating. Suitable for PCB, electronic components and parts, plastic Electro-plating on top quality, even for high-precision electronic products, such as semi-conductor.
Packaging: 25Kg woven bag with double PE liners
Storage Precautions: Stored in draughty and dry warehouse. Packing bag must be tied tightly to prevent dampness