Sodium Butyl Xanthate (SBX)

Chemical Name

Sodium Butyl Xanthate

Structure
CAS 141-33-3
Formula C₅H₉OS₂.Na
Synonym name
Sodium butylxanthogenate,
O-Butyl hydrogen dithiocarbonate sodium salt,
Sodium butylxanthate,
Sodium n-butyl xanthate,
Sodium o-butyl carbonodithioate,
Dithiocarbonic acid O-butyl S-sodium salt,
SBX,
SNBX
Molecular weight 172.24g/mol
EINECS number 205-481-2
H.S. Code 293090.2000
UN Number 3342

Specification

Appearance Pale yellow to white powder or granules or pellets.
Odor Unpleasant, characteristic sulfur odor.
Melting point Decomposes before melting.
Solubility Soluble in water, especially in alkaline solutions.
Stability Decomposes in acidic conditions.
PH 9-11 (1% solution)
Bulk density 1.2-1.3g/cm³
Flash point 55.7^oC
Active ingredient ≥ 90%

Application

Used as a flotation agent for the separation of sulfide minerals such as: Chalcopyrite (CuFeS₂), Galena (PbS), Sphalerite (ZnS), Pyrite (FeS₂), and others.

Also applicable as a vulcanization accelerator for rubber industry and precipitant in wetting metallurgical industry.

Handing and Safety

Irritant

Signal Word: Danger

GHS Hazard Statements:

H315: Causes skin irritation.

H319: Causes serious eye irritation.

Package

110kg/drum or 850kg/wooden crate,

14.74MT/20ft (drum) or 17MT/20ft (crate),

Keep in dry and cool place, avoid wet, rain, and sunlight.

Shelf time: 24 months.

MSDS Sheet

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