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Sodium isobutyl xanthate

CAS Number
25306-75-6
EC Number
246-805-2
Chemical Formula
C5H10OS2.Na
Molecular Weight
172.2 g/mol
Industries:Mining & Metals

Description

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. It selectively binds to target mineral surfaces, enabling their separation from gangue material in mineral processing operations. In copper, lead, and zinc sulfide flotation circuits, it acts as a primary collector, improving mineral recovery rates at the concentrate stage. Gold and silver ore processors use it to float sulfide-associated precious metals where selectivity against iron sulfides is required. It is also applied in the flotation of nickel and molybdenum ores, particularly where moderate chain-length collectors outperform shorter or longer xanthate alternatives. Some operations blend it with other collectors or frothers to optimize grade-recovery curves. This chemical is particularly effective for complex polymetallic ores where precise separation is necessary. Sodium isobutyl xanthate is supplied as a yellow to pale powder or granular solid for industrial use. It is available in technical grade , the standard specification for mineral processing applications. Packaging typically ranges from 25 kg bags to bulk quantities suited to mine-site consumption volumes. The product ensures high efficiency in mineral recovery while maintaining the necessary selectivity for high-grade concentrates. It remains a staple reagent in the global mining and metallurgy industry for diverse ore types. Contact us for supply of Sodium isobutyl xanthate Request Quote

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)

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Boiling Point478.58°C[at 101 325 Pa]
Density1.24[at 20℃]
OdorStrong, unpleasant odor
FormYellowish-brown powder
Water Solubility662.6-510000mg/L at 20-25℃
Vapor Pressure0-0Pa at 25℃
Log P-1.33 at 20℃

Safety & Handling

Danger
GHS02· FlammableGHS07· IrritantGHS09· Environment

Hazard Statements

H228Flammable solid
H242Heating may cause a fire
H251Self-heating; may catch fire
H260In contact with water releases flammable gases which may ignite spontaneously
H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation
H400Very toxic to aquatic life
H411Toxic to aquatic life with long lasting effects

Precautionary Statements

P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P223Do not allow contact with water.
P234Keep only in original packaging.
P235Keep cool.
P240Ground and bond container and receiving equipment.
P241Use explosion-proof equipment.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P272Contaminated work clothing should not be allowed out of the workplace.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P317Get emergency medical help.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P391Collect spillage.
P403Store in a well-ventilated place.
P405Store locked up.
P407Maintain air gap between stacks/pallets.
P410Protect from sunlight.
P411Store at temperatures not exceeding … °C/…°F.
P413Store bulk masses greater than … kg/… lbs at temperatures not exceeding … °C/…°F.
P420Store away from other materials.
P501Dispose of contents/container in accordance with local regulations.
P232Handle and store contents under inert gas/… .
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P378Use … for extinction.
P404Store in a dry place. Store in a closed container.
P233Store in a well-ventilated place. Keep container tightly closed.
P334IF ON SKIN: Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.