Salts & Minerals
REACH
Sodium isobutyl xanthate
CAS Number
25306-75-6
EC Number
246-805-2
Industries: Mining & Metals
What is Sodium isobutyl xanthate?
Sodium isobutyl xanthate (CAS 25306-75-6), also known as sodium O-isobutyl dithiocarbonate, is a xanthate collector used in the froth flotation of sulfide and oxide ores.
Where is Sodium isobutyl xanthate used?
- Copper, lead and zinc sulfide circuits: primary collector improving recovery at the concentrate stage
- Gold and silver ores: flotation of sulfide-associated precious metals where selectivity against iron sulfides is required
- Nickel and molybdenum ores: moderate chain-length collector
- Blending with other collectors or frothers optimises grade-recovery curves.
- It selectively binds to target mineral surfaces, enabling separation from gangue.
Commercial specifications
- Packaging from 25 kg bags to bulk quantities for mine-site consumption volumes.
Other Names (Synonyms)
Carbonodithioic acid O-(2-methylpropyl) ester sodium salt|Sodium O-isobutyl dithiocarbonate|RefChem:887627|SODIUM [(2-METHYLPROPOXY)METHANETHIOYL]SULFANIDE|sodium,butan-2-yloxymethanedithioic acid|Iso-butyl xanthate, II|Carbonodithioic acid, O-(2-methylpropyl) ester, sodium salt (1:1)
What are the physical properties of Sodium isobutyl xanthate?
Boiling Point 478.58°C[at 101 325 Pa]
Density 1.24[at 20℃]
Odor Strong, unpleasant odor
Form Yellowish-brown powder
Water Solubility 662.6-510000mg/L at 20-25℃
Vapor Pressure 0-0Pa at 25℃
Log P -1.33 at 20℃
How is Sodium isobutyl xanthate classified and handled safely? Learn More
Danger
GHS02· Flammable GHS07· Irritant GHS09· Environmental Hazard
Hazard Statements
H228 Flammable solid
H242 Heating may cause a fire
H251 Self-heating; may catch fire
H260 In contact with water releases flammable gases which may ignite spontaneously
Precautionary Statements
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P223 Do not allow contact with water.
P234 Keep only in original packaging.
P235 Keep cool.