Barium carbonate

Barium carbonate (CAS 513-77-9), also known as Witherite, is an inorganic barium salt used in ceramics, electronics, and specialty chemical manufacturing.

Where is Barium carbonate used?

• Ceramics and tiles: neutralizes soluble sulfates in clay bodies, preventing surface efflorescence in fired products
• Electronics: raw material for barium titanate synthesis, a key dielectric compound in capacitors and piezoelectric components
• Glass and specialty optics: modifies refractive index and improves durability
• Metallurgy: flux and surface hardening agent in steel case-hardening salt baths
• It functions primarily as a barium source in high-temperature sintering processes.

Good to know: Technical grade is the standard commercial form, with purity levels typically ranging from 98% to 99.5% depending on the intended application. Specifications are often aligned to ceramic or electronic-grade quality requirements set by individual industry standards.

Commercial specifications

• Purity: 98% to 99.5% (technical grade)
• Fine and coarse particle grades
• Bulk packaging in bags or big bags