99.2% Barium Carbonate For Making Reagents BaCO3 CAS 513-77-9

Chemical Composition: Barium carbonate consists of one barium atom bonded to one carbonate ion, resulting in the chemical formula BaCO3.

Purity: "Barium carbonate 99.2%" indicates that the sample contains 99.2% pure barium carbonate, with the remaining 0.8% likely consisting of impurities or other compounds. High purity grades are desirable for certain applications where precise composition is crucial.

Physical Properties:

• Appearance: Barium carbonate typically appears as a fine white powder or granules.
• Density: The density of barium carbonate is approximately 4.275 grams per cubic centimeter (g/cm³).
• Solubility: Barium carbonate is insoluble in water but soluble in acids, such as hydrochloric acid (HCl) and sulfuric acid (H2SO4).
• Melting Point: Barium carbonate has a high melting point of approximately 811°C (1,492°F).

Production:

• Synthetic Methods: Barium carbonate is primarily produced through chemical precipitation reactions between soluble barium salts (e.g., barium chloride) and carbonate salts (e.g., sodium carbonate) under controlled conditions. The resulting precipitate is then filtered, washed, and dried to obtain the final product.
• Natural Sources: Barium carbonate can also be obtained from natural mineral deposits, such as witherite, although this source is less common.

Applications:

• Glass Manufacturing: Barium carbonate is used as a fluxing agent in the production of special types of glass, such as optical glass, television picture tubes, and glass ceramics. It helps to reduce melting temperatures, increase glass density, and improve optical clarity.
• Ceramic and Enamel Production: Barium carbonate is added to ceramic and enamel formulations as a flux to lower firing temperatures, enhance glaze adhesion, and produce glossy finishes in pottery, tiles, and sanitaryware.
• Rat Poison: Barium carbonate has historically been used as a rat poison due to its toxicity. However, its use for this purpose has declined due to safety concerns and the availability of safer alternatives.
• Specialty Chemicals: Barium carbonate is employed in the synthesis of various specialty chemicals, including barium salts, barium titanate (a ferroelectric ceramic material), and barium peroxide (used in fireworks and oxygen production).
• Electronics: Barium carbonate is used in the production of certain electronic components, such as multilayer ceramic capacitors (MLCCs), where it serves as a dielectric material or a precursor for barium titanate ceramics.

Safety Considerations:

• Barium carbonate is toxic if ingested or inhaled and can cause severe health effects, including gastrointestinal irritation, cardiovascular effects, and nervous system damage. It should be handled with caution, and appropriate safety measures should be implemented to minimize exposure.
• Proper ventilation and personal protective equipment (PPE), such as gloves and respiratory protection, should be used when handling barium carbonate powder or working with solutions containing barium ions.

Environmental Impact:

• Barium carbonate is not considered highly toxic to the environment; however, its release into soil or water bodies may pose risks to aquatic organisms and ecosystems.
• Proper waste management practices should be followed to prevent environmental contamination, and disposal should be carried out in accordance with local regulations.