Basic zinc carbonate

Basic zinc carbonate is a zinc carbonate-hydroxide material used as a reactive zinc source in rubber and chemical manufacture. Its zinc content contributes activation of selected vulcanization systems, while conversion by acids produces zinc salts. Thermal decomposition also allows the material to serve as a precursor to zinc oxide.

The white powder is commonly associated with hydrozincite-type compositions. The carbonate and hydroxide components distinguish it from simple zinc carbonate and from zinc oxide, affecting decomposition and reaction behavior. In rubber compounds it is selected for zinc activation together with optical and dispersion requirements, including transparent or translucent products. The powder therefore combines reactive zinc supply with a carbonate-hydroxide structure that converts during chemical or thermal processing.

Typical Applications

• Transparent and translucent rubber goods: Used as a zinc-containing activator in suitable sulfur or thiuram vulcanization systems. It supports cure development where the compound design also needs to preserve a translucent appearance.
• Zinc salt and soap manufacture: Used as a reactive feedstock for zinc carboxylates and other zinc chemicals. The carbonate-hydroxide material supplies zinc during conversion into the desired salt.
• Specialty zinc oxide preparation: Used as a decomposable precursor in production of selected zinc oxide materials. Thermal conversion removes carbonate and hydroxide components and establishes the oxide product through the chosen processing route.

Specifications

Specifications describe the standard grade. Tolerance, test method and documentation package are confirmed per order.