Barium sulfide

CAS Number

21109-95-5

EC Number

244-214-4

Industries: Mining & Metals Textiles, Leather & Paper

What is Barium sulfide?

Barium sulfide (CAS 21109-95-5), also known as barium sulphide and BaS, is an inorganic salt used industrially as a reducing and bleaching agent.

Where is Barium sulfide used?

Leather processing: hair-removal agent in the beamhouse stage, an alternative to sodium sulfide for dehairing hides
Mining and metals: production of other barium compounds and precipitant for removing sulfate ions from process streams
Pulp and paper: historically used in bleaching and chemical recovery under strong reducing conditions
Textile processing: supports desizing and preparation where sulfide-based chemistry is specified
It functions as a precursor chemical and depilatory agent.

Commercial specifications

Purity typically specified by active BaS content
Packaging commonly in multi-wall bags or drums

Other Names (Synonyms)

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What are the physical properties of Barium sulfide?

Melting Point 2229 °C

Density 4.25 g/mL at 15 °C(lit.)

Appearance colourless crystals, or white to grey-brown powder,

Color Pale gray to yellow

Form Powder

Water Solubility Soluble in water but insoluble in alcohol.

How is Barium sulfide classified and handled safely? Learn More

Warning

GHS07· Irritant GHS09· Environmental Hazard GHS05· Corrosive GHS06· Toxic GHS08· Health Hazard

Hazard Statements

H290 May be corrosive to metals

H301 Toxic if swallowed

H302 Harmful if swallowed

H312 Harmful in contact with skin

Precautionary Statements

P234 Keep only in original packaging.

P260 Do not breathe dust/fume/gas/mist/vapours/spray.

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P264 Wash … thoroughly after handling.

Which trade and regulatory codes apply to Barium sulfide?

HS Code 2830908500

UN Number 2813

ADR Class 4.3

Packing Group II

Storage Class 4.3 - Hazardous materials which set free flammable gases upon contact with water

WGK (Germany) 2