StructureTolyltriazole (TTA)
CAS No. 29385-43-1
EC No. 249-596-6
Synonyms Methyl-1H-benzotriazole; 1H-1,2,3-benzotriazole,1-methyl-; 1H-Benzotriazole,1-methyl; 1H-Benzotriazole, Methyl-; 1-Methyl-1,2,3-benzotriazole; 1-Methyl-1H-1,2,3-benzotriazole; 1-Methyl-1H-benzotriazole; 1-methylbenzotriazole; Tolutriazole

Tolyltriazole (TTA)

​The Tolyltriazole is being produced at our partner Nantong Botao in Rugao/China. Together with 1,2,3 Benzotriazole (see separate product information) it is one of the most effective corrosion inhibitors for copper and copper alloy used in various industries. Further positive effects can be seen in protection of steel, gray iron, cadmium and nickel.


  • Cooling water systems / industrial water treatment
  • Industrial lubricants (e.g. drilling and cutting fluids)
  • Dishwashing tablets (silver protection)
  • Metal detergents and polishing
  • Coolants
  • VCI papers / metal packaging
  • Antifogging agent (photo)


Grades available:

  • Granular
  • Fine granular
  • Powder

Packaging & Shelf Life:

  • Bags of 25kg
  • Big bags / super sacks of 500kg
  • Iron or plastic drums of 100kg
  • Others on request


Under proper storage conditions the shelf life is 24 months.

Health & Safety:
Detailed information on the product can be found in our Material Safety Data Sheet.

Our product Tolytriazole is produced in Nantong, Peoples Republic of China at one of our partner facilities called Nantong Botao Chemical co. Ltd.
Tolytriazole and its related Na salts do belong to the most effective corrosion inhibitors for copper and copper alloys.

Only workable and chemical quite identical alternative is the 1,2,3 Benzotriazole.
Tolyltriazole does further show positive effects in protection of steel, gray iron, cadmium and nickel.

Tolytriazole can be used in different applications in major industries. For example, it is used in cooling water or boiler systems by the industrial water treatment industry. Tolyltriazole can be also used in coolants. Another application is the use as an additive in industrial lubricants, like e.g. drilling and cutting fluids. It does also work to protect silver ware in dishwashing tablets and can be further used in metal detergents.

How does Tolyltriazole work?

As a corrosion inhibitor, Tolytriazole decreases the corrosion rate of metals and alloys. This works by forming a coating, a passivation layer, which prevents access of the corrosive substance to the metal or alloy underneath. This is of particular importance in industries where fluids routinely need to be in continuous contact with metals that require protection.

Tolytriazole shows outstanding thermic and oxidative stability and is also resistant to UV light. It does not negatively affect the appearance of the metal it’s applied to. Tolyltriazole can be considered as a non-sensitive item as far as handling storage is concerned. Under proper storage conditions Tolytriazole has a shelf life of 24 months.

Tolytriazole is very bright in color so that solutions – either aqueous or in different solvents – are clear and almost colorless. A table of solubility properties and max concentrations is available on request.

Connect Chemicals does offer Tolytriazole in three different grades: granular, fine granular and as a powder. The packing options do range from bags of 25kg to big bags/super sacks of 500kg net. Further we are able to offer product packed in fiber drum of 25kg net as well as in iron or plastic drums of 100kg net. Other tailor made packing options are available on request.

Connect Chemicals – your supplier of high quality Tolytriazole

Connect Chemicals develops, produces and markets specialty chemicals. We are a global organization running 11 offices in 8 different countries as well 3 production sites in China. One of these – as already mentioned above – is Nantong Botao producing Benzo- and Tolyltriazole. We comply with highest industry standards for both – quality of our products as well as our working and safety procedures.


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