CUPROUS CYANIDE

 

FORMULA: CuCN

 

M. W.: 89.56

 

CAS NO.: 544-92-3

 

GRADE: TECHNICAL GRADE

 

DESCRIPTION: WHITE CRYSTAL POWDER, SPECIAL GRAVITY IS 2.92, MELTING POINT 437℃, INSOLUBLE IN WATER AND COLD ACID, SOLUBLE IN SODIUM CYANIDE, POTASSIUM CYANIDE, AMMONIUM CYANIDE. IT WILL BURN ITSELF WHEN THE TEMPERATURE IS HIGE THAN 130℃. IT IS POISONOUS.

 

SPECIFICATIONS:

 

ITEM

GRADE A

GRADE B

CuCN

99.6% MIN.

99.0%MIN.

Cu

70.0%MIN

69.6%MIN.

CN

28.5%MIN

28.0%MIN.

INSOLUBLE (IN NaCN SOLUTION)

0.20%MAX

0.30%MAX.

Fe

0.02%MAX

0.04%MAX

 

USES: USED IN GALVANIZING COPPER AND ALLOY INDUSTRY.

 

PACKING:   IN IRON DRUMS WITH PLASTIC INNER, NET WEIGHT 15KG, 25KG OR 50 KG. SEALED TIGHTLY.

 

UN. NO.: 1587            CLASS: 6.1