Reaxis®  C154S - Stannous Chloride, Dihydrate/Blend

REAXIS® C154S (Stannous Chloride Dihydrate), is a versatile high metal content stannous inorganic tin that is used in applications where a free-flowing solid is required. REAXIS® C154S consists of stannous chloride dihydrate (REAXIS® C154) combined with silica and is processed to ensure a free-flowing solid that acts to minimize the negative effects of temperature and hygroscopicity. Stannous chloride dihydrate is produced to the highest quality standards, meeting A.C.S. specifications and maximizing stannous tin content while minimizing stannic tin content. Stability/free-flowability can be enhanced via blends with various products including silica, talc, and numerous solid resins. Similar products include REAXIS® C154T, which is the variant with talc, REAXIS® C154P which contains polypropylene, and REAXIS® C154S+. Specialty blends and related products with tailored particle sizes can be offered upon request. REAXIS® C154S is present on most international regulatory lists as commercial use-compliant. 

For more information, be sure to read our technical bulletin on the chemistry and toxicity of inorganic tins, as well as our product spotlight on stannous chloride dihydrate and silica blends.

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Technical Information

  • Product Category Inorganic Tin

  • Chemical Name Stannous Chloride, Dihydrate/Blend

  • CAS Number 10025-69-1

Typical Specifications

Parameter Range
Assay as SnCl2·2H2O (%) 95.0 Min.
Stannous Tin (%) 50.0 Min

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

  • NDSL (Canada) No


Common end-use chemistries and applications for stannous chloride dihydrate include: esterifications, thermoplastic elastomers, personal care, surface finishing, oil well simulation (acidizing additive), corrosion inhibition, and glass (silver mirroring and color modifier). REAXIS® C154S is primarily used in hybrid thermoplastic elastomers formulations, specifically in the production of EPDM and polyethylene-based thermoplastic vulcanizates (TPVs). Other applications include personal care products and use as a reducing agent. REAXIS® C154S is of the inorganic tin family of tin chemicals and is an ideal candidate, in select chemistries and formulations, as an alternative to more regulatory controlled organotins. 


Due to its high tin concentration, small ligand, and inorganic Sn (II) nature, REAXIS® C154S is a very active catalyst and reducing agent.  Given its inorganic tin nature, REAXIS® C154S is stable at high reaction temperatures typical of many reactions. In addition, REAXIS® C154S is characterized by a narrow particle size distribution resulting in ideal blending with other solid raw materials. 

Package & Storage

  • 44 lb (20 kg) plastic pails

REAXIS® C154S 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® C154S 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

Hazard Classification (US SDS)

Section Hazard Class Category Hazard Statement
A.10 acute toxicity (oral) 4 H302
A.1l acute toxicity (inhal.) 4 H332
A.2 skin corrosion/irritation 1 H314
A.3 serious eye damage/eye irritation 1 H318
A.4S skin sensitization 1 H317
A.8R specific target organ toxicity - single exposure (respiratory tract irritation) 3 H335
A.9 specific target organ toxicity - repeated exposure 2 H373
B.16 substance or mixture corrosive to metals 1 H290

Hazard Pictograms (US SDS)


Transportation Information (US SDS)

DOT IMDG ICAO Environment Hazard
UN Number UN 3260 UN 3260 UN 3260 non-environmentally hazardous acc. to the dangerous goods regulations
UN Proper Shipping Name Corrosive solid, acidic, inorganic, n.o.s. CORROSIVE SOLID, ACIDIC, INORGANIC, N.O.S. Corrosive solid, acidic, inorganic, n.o.s.
Transport Class 8 8 8
Packing Group ll ll ll

Primary Composition Substance(s)

  • Stannous Chloride Dihydrate

Alternative Product(s) to Consider

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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