Inorganic Tin

Inorganic Tin Specialty Chemicals

Reaxis, a leading specialty chemical company, offers a wide range of inorganic tin chemicals that play crucial roles in various applications and end-use markets. Inorganic tins are one of two main families of tin chemicals, with the other one being organotins. Inorganic tins differ from organotins in that they do not contain a tin-carbon covalent bond and the tin can exist as either the Sn(II) or Sn(IV) species. The three main categories of inorganic tin compounds include stannous (Sn(II)), stannates (Sn(IV)) and stannic (Sn(IV)). These versatile chemicals, including stannous octoate, stannous neodecanoate, stannous pyrophosphate, stannous chloride, stannous oxalate, stannous oxide, potassium stannate, sodium stannate, and stannous oleate serve a multitude of functions such as reducing agents, catalysts, plating agents and corrosion protection agents.


Stannous Pyrophosphate

REAXIS® C1001, stannous pyrophosphate, is a high tin-containing product with very good heat stability. It is thus used in high-temperature applications such as glass manufacturing where it acts as a strengthening agent. It also finds use in surface finishing/electroplating applications. It is used in the food industry as a source of tin ions. These ions serve as an antioxidant, preserving the color and taste of various food products. In addition, stannous pyrophosphate is used as a stabilizing agent in some dental products, such as toothpaste, to help maintain the mineral content of teeth.

Stannous Chloride and Its Variants

Reaxis offers stannous chloride dihydrate and anhydrous, along with a range of blends, including REAXIS® C154P, REAXIS® C154S, REAXIS® C154S PLUS, REAXIS® C154T and solutions like REAXIS® S25, REAXIS® S45, REAXIS® S50, and REAXIS® S72. Stannous chloride is widely used as a reducing agent in various chemical processes, including the reduction of metal ions, nitrate to nitrite, and organic compounds. It is also commonly utilized in electroplating, tin plating, and as a catalyst in esterification reactions. Additionally, stannous chloride serves as a mordant in dyeing and printing textiles

Stannous Octoate and Stannous Neodecanoate

REAXIS® C129, stannous octoate, and REAXIS® C125, stannous neodecanoate, are two carboxylate-based stannous tins with a long history of use as catalysts for polyurethanes, silicones, and esterifications. Both stannous octoate and neodecanoate are good organotin alternatives.  Additionally, stannous octoate is used as a lubricant additive where its high-temperature stability and corrosion protection attributes are required.

Stannous Oxalate and Stannous Oxide

REAXIS® C160, stannous oxalate, and REAXIS® C188, stannous oxide, are commonly used as an alternative to organotins as an esterification catalyst given their relatively high stannous tin concentration (stannous is the active catalytic species) and low stannic concentration. Stannous oxalate and oxide can also be used in the production of ceramics and glass, where they function as strengthening agents.

Potassium and Sodium Stannates

Reaxis offers potassium stannate as REAXIS® E140 and REAXIS® E140P, in addition to sodium stannate, sold as REAXIS® E144, REAXIS®  E144P, and REAXIS® E10, which are widely used as alkaline tin plating agents, stabilizer additives for hydrogen peroxide, and corrosion protection additives and in batteries.

Stannous Sulfate

REAXIS® E155, stannous sulfate crystal, is commonly used in the electroplating industry for tin plating applications. It offers excellent corrosion protection and solderability, making it a popular choice for electronics manufacturing.

More Information on Inorganic Tin

If you’d like to know more about inorganic tin, we recommend reading our article on the Chemistry & Toxicity of Inorganic Tin, written by Technical Director of Reaxis, Dr. Mike Washington.