Reaxis®  C154 – Stannous Chloride Dihydrate - Stannous Chloride, Dihydrate

REAXIS® C154 (Stannous Chloride Dihydrate) also known as SnCl2 is a versatile high metal content stannous inorganic tin that is used in several reactions. REAXIS® C154 is produced to the highest standards, meeting A.C.S. specifications. REAXIS® C154 is a solid version of stannous chloride dihydrate. Stability/free-flowability of this tin chloride can be enhanced via blends with various products including silica, talc, and numerous solid resins. Stannous chloride dihydrate can also be supplied as a liquid in various concentrations, including REAXIS® S50. REAXIS® S45, and REAXIS® S72

For more information, read our technical bulletins on Bio-Based Catalysts, the Chemistry and Toxicity of Inorganic Tins, and Stannous Chloride Dihydrate and Silica Blends.

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Technical Information

  • Product Category Inorganic Tin

  • Chemical Name Stannous Chloride, Dihydrate

  • CAS Number 10025-69-1

Typical Specifications

Parameter Range
Assay as SnCl2·2H2O (%) 99.2 - 103.0
Stannous Tin (%) 52.2 Min.
Fe (ppm) 30 Max.
Pb (ppm) 100 Max.
Na Content (ppm) 100 Max.
K Content (ppm) 50 Max.
Ca Content (ppm) 50 Max.
Sulfates (ppm) Passes A.C.S. Test
Solubility in HCl Passes A.C.S. Test

International Regulatory Listings

  • TSCA (US) Yes

  • DSL (Canada) Yes

  • REACH (EU) Yes

  • AICS (Australia) Yes

  • KECI (South Korea) Yes

  • IECSC (China) Yes

  • ENCS (Japan) Yes

  • TCSI (Taiwan) Yes

  • NZloC (New Zealand) Yes

  • PICCS (The Philippines) Yes


Common end-use chemistries and applications for REAXIS® C154 include: esterifications, thermoplastic elastomers, personal care, surface finishing, oil well simulation (acidizing additive), corrosion inhibition, and glass (silver mirroring and color modifier). As a catalyst, REAXIS® C154 plays a crucial role in the esterification process, which is fundamental to the production of various esters.  Stannous chloride dihydrate, as a reducing agent, finds diverse applications and benefits in various industries. As a plating agent in electroplating, it serves as a primary reducing agent to deposit metal layers, such as silver or tin, onto substrates. By donating electrons, REAXIS® C154, stannous chloride dihydrate, reduces the metal ions to their corresponding metallic forms, which adhere to the substrate’s surface. This process results in a uniform, thin coating that improves the final product’s appearance, durability, and corrosion resistance. 


Due to its high tin concentration and small ligand, REAXIS® C154 is a very active esterification catalyst with comparable reactivity to common organotin catalysts such as dibutyl and monobutyl tin oxides. Given its inorganic nature, REAXIS® C154 is stable at high reaction temperatures typical of many esterification reactions. Due to the presence of chlorides, color formation may be an issue with some ester formulations. If the presence of residual moisture in REAXIS® C154 is deemed an issue with the catalysis of esters, REAXIS® C162 would be an ideal, moisture-free alternative.

Package & Storage

  • 55 lb (25 kg) plastic pail

REAXIS® C154 should be stored in the original packaging. The container should be closed tightly after each use to maximize shelf life. Characteristic of most inorganic tins (Sn(II)), the primary cause of instability would be oxidation. Additionally, REAXIS® C154 has a low melting point (38C)and is hygroscopic.

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

Featured Technical Bulletins

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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