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Sodium(potassium)Isobutyl Xanthate

CAS Number: 25306-75-6
Molecular Formula: (CH3)2CHCH2OCSSNa(K)
Structural Formula: :

A yellowish powder or pellet with a pungent odour, freely soluble in water. It can form insoluble compounds with various metallic ions .
Principal uses:
Sodium(Potassium) isobutyl xanthate is also a stronger collector in the flotation of various nonferrous metallic sulfide ores. Sodium(Potassium) isobutyl xanthate is mainly used in flotating copper, lead, zinc ect. sulfide ores. It has displayed especially effective in the flotation of copper ores and of pyrites in natural circuits.


Item Drying SIBX Synthetic
Pellet Powder
Sodium (Potassium) isobutyl xanthate %≥ 90.0 90.0 84.0
Free alkali %≤ 0.2 0.2 0.5
Moisture and volatile %≤ 4.0 4.0 __
D(mm) 3~6 __ __
L(mm) 5~15 __ __
Period of validity(month) 12 12 6
Packing 110kg/steel drum, 800/plywood box,50kg/plastic woven bag 110kg/steel drum, 50kg/plastic woven bag 110kg/steel drum, 40kg/plastic woven bag

Storage & transport: To be protected from damp, torrid sunlight and fire.


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