Reaxis®  E155

REAXIS® E155, Stannous Sulfate, is a fast dissolving high quality tin salt that is manufactured by a proprietary direct process to insure consistently very low impurity levels. It is used as the coloring agent in electrolytic coloring baths for hard anodized aluminum extrusions and as the tin source in acid tin electroplating baths.

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Technical Information

  • Chemical Name Stannous Sulfate Crystal

Typical Specifications

Parameter Range
Tin Content (%) 53.5 Min
Free Sulfuric Acid (%) 1.5 Max
Moisture (%) 1.5 Max
Fe (ppm) 50 Max
Pb (ppm) 99 Max

Package & Storage


  • 55 lb (25 kg) plastic pail


Stannous Sulfate should be stored in the original packaging. The container should be closed tightly after each use to maximize shelf life.

Safety and Handling

Before use of Reaxis products please refer to the relevant Safety Data Sheet (SDS) for safety and toxicological data as well as for the information on proper transportation, storage, and use. SDSs are available by request via our web site, contacting your local representative, or emailing direct to

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This information is provided to the best of our knowledge but without obligation. Reaxis is not liable for any incorrect or missing information. This data sheet becomes invalid upon publication of a new version. Please contact us for the latest version.

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