ISO9001 Standard Barium Carbonate Manufacturers 811 °C Melting Point

CAS NO 513-77-9 Barium carbonate powder 99% is mainly used in producing optical glass in the industry

►Description

      Barium carbonate is a white fine powder.

     Barium carbonate (BaCO3), also known as witherite, is a chemical compound

used in rat poison, bricks, ceramic glazes and cement.

     Barium carbonate is insoluble in water and soluble in most acids, with the

exception of sulfuric acid. Barium carbonate has a specific gravity of 4.275. Barium

carbonate is toxic by ingestion.

The mineral is named after William Withering, who in 1784 recognized it to be

chemically distinct from barytes. It occurs in veins of lead ore at Hexham in

Northumberland, Alston in Cumbria, Anglezarke, near Chorley in Lancashire and a

few other localities. Witherite is readily altered to barium sulfate by the action of

water containing calcium sulfate in solution and crystals are therefore frequently

encrusted with barytes.

• It is the chief source of barium salts and is mined in considerable amounts in

Northumberland.

•It is used for the preparation of rat poison, in the manufacture of glass and

porcelain, and formerly for refining sugar.

•It is also used for controlling the chromate to sulfate ratioinchromium electroplating

baths.

►Specification

► Production method 

 Carbonation method: 

BaS + CO2 + H2O→ BaCO3↓+ H2S↑

BaS + (NH4) 2CO3 → BaCO3 ↓ + (NH4) 2S
 

Reaction equation:

BaS + CO2 → BaCO3 ↓ + H2S ↑

Metathesis method. Reaction equation:

BaCl2 + NH4HCO3 + NH4OH → BaCO3 ↓ + 2NH4Cl + H2O
 

Reaction equation:

BaCO3 + 2NH4Cl → BaCl2 + 2NH3 + H2O + CO2

BaCL2 + (NH4) 2CO3 → BaCO3 ↓ + 2NH4Cl

►Application 

(1) Barium carbonate is mainly used for the manufacture of optical glass, funnels,

and barium magnetic materials, the manufacture of other barium salts, ceramic,

enamel, paint, welding rod feed.
 

(2) It is important chemical raw materials for the production of funnels, magnetic

materials and advanced optical glass.
 

(3) It is used for fireworks, flares preparation, also used for auxiliary material of

ceramic coatings and optical glass.
 

(4) It is used for the manufacture of electronic ceramics, PTC thermistors,

capacitors and other electronic components.
 

(5) Barium carbonate is mainly used for the manufacture of optical glass, CRT

glass, and barium magnetic materials and capacitors,

(6) It is also used for carburizing steel and metal surface treatment. It is the raw

material of manufacturing other barium salts and ceramic, enamel, pigments,

paints, rubber, electrode.

(7) It is also used as rodenticides and purifying agent, oxidation catalyst.

►WARNING!

Emergency Overview

   Harmful if swallowed. Use personal protective equipment. Ensure adequate

ventilation. Wash off immediately with plenty of water for at least 15 minutes. Get

medical attention immediately if symptoms occur. Rinse immediately with plenty of

water, also under the eyelids, for at least 15 minutes. Obtain medical attention.

Move to fresh air. If breathing is difficult, give oxygen. Do not use mouth-to-mouth

resuscitation if victim ingested or inhaled the substance; induce artifici. Get medical

attention immediately if symptoms occur. Do not induce vomiting. Do not induce

vomiting. Call a physician or Poison Control Center immediately.

►Packing 

25kg/bag