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Zirconium Orthosulfate (ZOS)

Zirconyl Sulfate, ZSS, ZOS | 19696-82-3, 14644-61-2

Titanium dioxide pigment, and catalyst.

Zirconium Orthosulphate is a strongly acidic clear, aqueous solution used in manufacturing titanium dioxide pigments to reduce yellowing effects from UV light exposure. Additionally it is used for softening leather and as a degreasing agent.


Zirconium Orthosulfate provides a concentrated, high purity, easy to process solution, mainly for modifying pigments. A source of zirconia deposited on certain high quality titanium dioxide pigments.

Chemical analysis



Rest of world: 25 kg quad retainers 250 kg plastic drums, 1,250 kg intermediate bulk containers.

North and South America: 50 pound pails 550 lb drums 3,300 pounds totes.

Bulk containers available upon request.

Zirconium Orthosulfate (ZOS) Improves gloss retention and reflective properties in oil-based and water-based paints.

  1. Used in titanium dioxide pigment manufacture to reduce yellowing effects from UV light exposure (reduces photo-chemical activity of the titania)
  2. Precursor material for manufacturing other zirconium chemicals
  3. Leather tanning agent
  4. Precipitation/hardening of gelatin in the photographic industry
  5. Insolubilizer for water-based binders in wood adhesives
  6. Crosslinker for aqueous polymer emulsion systems

*This product should be shipped using protect from freeze equipment between November 1st and April 1st.*

Meet the Team

Jordan Baron

EU Sales Manager
Europe/Middle East/Africa

Based in Manchester, UK, Jordan supports our Coating and Solution customers throughout the entirety of Europe. Jordan is solely focused on providing guidance to new and existing customers, ensuring they receive Luxfer’s quality service and products. Please contact Jordan to discuss how our coating and solutions can benefit your operational needs.

    Tara Majors

    Sales Manager USA