CAS No.: 6317-18-6
Molecular Formula: CH2(SCN)2
Molecular Weight: 130
Structure Formula:




Pale Yellow free flowing powder / Crystals

Melting Point

101°C minimum


98% minimum


0.5% maximum

Acetone Insolubles

1.0% maximum

Inorganic Salts

1.0% maximum

Methylene Bis Thiocyanate(MBT) is an efficient, broad-spectrum Germicide & Algaecide & displaying strong extermination effects against Germs, Fungus, and Algae existing in circulating water. It maintains long-term effects and is applicable to broad PH value and temperature ranges. Using 3-4ppm Methylene Bis Thiocyanate(MBT) kills over 90% of nitrosation germs, sulfate reducing germs, colon bacillus, anti-nitrosation germs and many other types of germs. Methylene Bis Thiocyanate(MBT) liquid is stable, and it can decompose shortly in application. Methylene Bis Thiocyanate(MBT) has analysis method and is easy for monitoring, so it is safe for discharge.
Methylene Bis Thiocyanate(MBT) can increase oil production by reducing oil layer contamination, preventing clay form expanding, and disinfecting. Methylene Bis Thiocyanate(MBT) can also be used to protect packing paper from going molding, treat circulating cooling water, and remove marine organisms from marine liners. Methylene Bis Thiocyanate(MBT) has excellent effects of anti-corrosion, germicide and algaecide for electrical materials, bamboo and wooden ware, coatings, rubber, canvas, glue and ink.
Methylene Bis Thiocyanate(MBT) 1% emulsion is a kind of efficient, broad-spectrum and safe agricultural germicide, having good effects against diseases of rice and wheat. Within the recommended quantity, it is safe to rice seed and increases germination percentage. As it is an organic thiocyano germicide, it can solve the problem of anti-pesticide property developed by the widely used absorbing germicides. Whenused in treating rice seed, it does not need presoaking or after-washing. It can be used directly in germination and seeding.
Methylene Bis Thiocyanate(MBT) also can be made of safe fish medicine to prevent many kinds of fish disease. It is a good disinfectant in the water for various breed aquatics.
1. Control of microbial activity in cooling water systems.
2. Control of slime in Pulp & Paper Manufacturing.
3. Preservation of paints, adhesives, synthetic polymer lattices and latex emulsions.
4. Anti-microbial treatment of water thinned products, thickeners and slurries.
5. Preservation of wood and wood products. 6. Preservation of Leather and Leather products.
7. Oil well brines and drilling mud.

  Package and Storage:
Normally packed in 25kg/paper bag or fibre drum, also can pack as required.
Store it in cool, dry and ventilative places. Keep away from incompatible substance. It can not be stored together with food and feedstuff.