TOLYTRIAZOLE
TOLYTRIAZOLE
Tolyltriazole and its related Na salts do belong to the most effective corrosion inhibitors for copper and copper alloys. Tolyltriazole can be also used in coolants or antifreeze products.
ATAMAN CHEMICALS is one of the leading suppliers and distributors of Tolytriazole. Tolytriazole is anti-rust and corrosion inhibitor for metals, lubricant additive, antifreeze manufacturing. Tolyltriazole is a stable corrosion inhibitor that produces a protective electrochemical film on metal surfaces to slow the rate of corrosion.
EC / List no.: 249-596-6
CAS no.: 29385-43-1
Mol. formula: C7H7N3
Tolyltriazole (TTA)
Tolyltriazole and its related Na salts do belong to the most effective corrosion inhibitors for copper and copper alloys.
It does further show positive effects in protection of steel, gray iron, cadmium and nickel.
Only workable and chemical quite identical alternative is the 1,2,3 Benzotriazole
Tolyltriazole 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 or antifreeze products.
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.
Tolyltriazole is a stable corrosion inhibitor that produces a protective electrochemical film on metal surfaces to slow the rate of corrosion.
It can shield a multiple types of metals against corrosion, though it is most commonly used copper and copper alloys.
How does Tolyltriazole work?
As a corrosion inhibitor, Tolyltriazole 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.
The product does show 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 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.
Grades available:
Granular
Fine granular
Powder
What Is Tolyltriazole?
Tolyltriazole is a water-stabilizing chemical that inhibits corrosion by bonding to metal parts and machinery surfaces to prevent water from destabilizing the molecular structure of the metal.
It creates an electrochemical barrier that is thick enough to deter corrosive chemicals.
This barrier is very durable and features favorable oxidative and thermal stability.
The long-term protective barrier created by tolyltriazole doesn’t contaminate process fluids or the metal material of piping systems.
Though similar to benzotriazole, another corrosion inhibitor, tolyltriazole contains an extra methyl group that makes it soluble in some organic solvents.
It’s especially well-suited for pure copper and copper alloys because it protects copper from galvanic corrosion when in contact with other metals.
Tolyltriazole also protects cobalt, silver, and zinc.
It may also be used to shield aluminum and steel from corrosion if combined with other corrosion-inhibiting chemicals.
Tolyltriazole has a relatively high melting point of 83° C and a boiling point of 317° C, making it ideal for room temperature applications and applications with slightly elevated temperatures.
Tolyltriazole is commonly used as a corrosion-inhibitor for:
Automotive coolants
Brake fluids
Circulating water cooling systems
Cooling towers
Hydraulic fluids
Metalworking fluids
Runway deicers
Specialty lubricants
Corrosion inhibition of copper by tolytriazole in comparison with benzotriazole was investigated in unpolluted and sulfide polluted 3.5 % NaCl.
Both tolytriazole and benzotriazole give approximately similar results in unpolluted salt water.
Electrochemical techniques illustrate that tolytriazole gives about (40%) higher efficiency than benzotriazole in case of sulfide polluted media.
Surface analysis by X-ray photoelectron spectroscopy reveals the presence of both sulfide and tolytriazole on the corroded surface.
In sulfide polluted salt water tolytriazole shows better performance than benzotriazole.
The mechanism of protection is attributed to the formation of protective film of tolytriazole or benzotriazole.
The rate of destruction of the protective film in tolytriazole is lower than that of benzotriazole in the presence of sulfide ions.
This result is established at sulfide concentration as low as 10-3 M in the presence of 10-2 M tolytriazole.
The gained results prove that tolytriazole gives better resistance against sulfide attack.
CONCLUSIONS
The current transients reveal interesting interaction between the injected sulfide ions and the tolytriazole on copper surface as well as the effect of the concentration of sulfide ions.
Benzotriazole gives lower efficiency against the injection of sulfide ions, which depends on the sulfide concentration.
On the contrary, an order of magnitude the tolytriazole gives 40 % higher efficiency than benzotriazole in case of 10-3 M sulfide ion concentration and gives about 16.6 % higher that benzotriazole in case of 10-4 M sulfide concentration.
It is concluded that the tolytriazole gives higher effect more than benzotriazole against sulfide attack on the copper surface.
Extended pre-passivation of the copper surface in the presence of tolytriazole improves its resistance to sulfide attack more than benzotriazole.
SILVA, Douglas K. da et al. Benzotriazole and tolytriazole as corrosion inhibitors of carbon steel 1008 in sulfuric acid. Port. Electrochim.
Acta [online]. 2006, vol.24, n.3, pp.323-335. ISSN 0872-1904.
In this work the characteristics of corrosion and inhibition of 1008 stainless steel in 0.5 mol.L-1 H2SO4 were investigated by physical and electrochemical methods.
Organic compounds containing the heteroatom of N as benzotriazole (BTAH), tolytriazole (TTAH) and mixtures of BTAH + TTAH were used as corrosion inhibitors.
The techniques used were: open circuit potential, anodic potentiodynamic polarization measurements, chronoamperometry, electrochemical impedance spectroscopy, weight loss and optical microscopy.
The anodic polarization showed that the increase of both concentrations BTAH or TTAH diminishes the current density in all the potential anodic range studied;
these results together with the weight loss measurements suggest that the inhibitors act by blocking the surface and that the interaction among them is only of destructive nature when inhibiting efficiency is approximated 100%, revealing that at low concentration both inhibitors act without affecting the mechanisms of the cathodic processes, but the anodic polarization curves in presence of the TTAH showed a strong inhibitive effect in all the potential range studied.
However, both gravimetric and electrochemical results suggest a synergic effect for the inhibitive efficiency of the mixture 1.10-3 mol.L-1 BTAH + 1.10-3 mol.L-1 TTAH.
A COMPARATIVE STUDY ON THE EFFECT OF TOLYTRIAZOLE,
BENZOTRIAZOLE AND THEIR BINARY MIXTURES ON THE
ELECTROCHEMICAL PROPERTIES OF BRASS
SELMAN DINCER, TULIN KIYAK, MELIKE KABASAKALOGLU / GAZI UNIVERSITESI
ABSTRACT
Electrochemical properties of zinc, copper and brass were comparatively investigated in 0. I M NaCl and in 0. I M NaCl containing tolyltriazole (TTA), benzotriazole (BTA) and the mixtures of TTA and BTA solutions.
Electrochemical behavior of brass in these mediums resembles to copper.
TTA hinders corrosion ofbrass by adsorption and enhancing ZnO formation on the surface.
A mechanism ıs proposed by the help of constant potential electrolysis and current potential curves.
There is no difference between the polarization behavior of brass ın solutions containing BTAand TTA mixtures and in the solution containing one of them.
BTA and mol ratio) mixture are more effective for zinc than BTA or TTA.
For copper, TTA is more effective inhibitor than BTA.
Key Words: Tolyltriazole, benzotriazole, corrosion, inhibition, brass, coppeı; zınc
Studies of Benzotriazole and Tolytriazole as Inhibitors for Copper Corrosion in Deionized Water
The inhibition effects of BTA and TTA were evaluated from polarization curves.
Coupon tests established that the inhibition efficiency was concentration, temperature, and time-dependent.
Effective inhibition to copper was observed when TTA or BTA (>6 ppm) was added to deionized water.
TTA showed more effeciency and persistence for inhibiting the corrosion of copper under selected conditions, which may be attributed to its increased film hydrophobicity
Tolyltriazole (TTA) has been identified as an effective copper corrosion inhibitor in cooling systems using treated municipal effluent as makeup water.
Significant removal of TTA from solution has been reported in previous studies in the presence of free chlorine and copper metal.
Hence, for effective dosing of TTA in the cooling systems, it is important to understand the depletion scenario of TTA in solution in the presence of free chlorine and copper metal.
In this study, TTA depletion in solution was assessed using batch reactor experiments in the presence of varying concentrations of free chlorine and copper metal in synthetic cooling water simulating treated municipal wastewater.
Increasing free chlorine concentration resulted in more depletion of TTA from solution in the presence of copper metal, which may be due to more adsorption of TTA on to the cuprous oxide surface formed with enhanced corrosion of copper metal and to the formation of insoluble copper–TTA complex with the released copper ions in solution.
The enhancement of copper metal corrosion in the presence of TTA and increasing concentration of free chlorine were assessed using electrochemical potentiodynamic polarization experiments. Also, TTA adsorption on cuprous oxide surface was assessed in batch reactor experiments.
Packing density of TTA on cuprous oxide surface was found to be pH dependent.
More TTA was adsorbed onto cuprous oxide surface at higher pH values.
Calculations of TTA free energy of adsorption showed that TTA was chemisorbed onto cuprous oxide.
Benzotriazole and Tolyltriazole as Corrosion Inhibitors for Copper and Brasses
Takenori Notoya* and George W. Poling*
*Department of Metallurgy, Faculty of Engineering, Hokkaido University, Sapporo, Japan
**Department of Mineral Engineering, University of British Columbia,Vancouver, B. C., Canada
The influence of Benzotriazole (BTA) and Tolyltriazole (TTA) as corrosion inhibitors for copper and brasses in 3 % NaCI solutions have been investigated using infrared reflection-absorption spectroscopy, electrochemical polarization, corrosion tests and scanning electron microscopy.
The protection afforded by pretreatment was tested in chloride solutions in the presence and absence of BTA and/or TTA.
TTA by itself was found to be equally as effective as BTA.
Combination of BTA and TTA resulted in significant improvement in the protection of these metals, particularly in acidic solutions.
Contrary to BTA, TTA appeared to be an adsorption-type inhibitor for copper and brass.
Benzotriazole (BTA) is one of the most effective and universally utilized corrosion inhibitors for copper and copper base alloys in both atmospheric and immersed environments
1). Although Cu-benzotriazolate (Cu BTA) film thickness increases in slightly acidic chloride solutions
2),3), protection of these metals by BTA in acidic chloride solutions is not as effective as can be obtained in neutral solutions.
One of the authors, Poling, has reported that the protective action of BTA is attributed to the formation of a semipermeable polymeric complex on the metal surface.
This polymeric complex presumably reinforces the copper oxide film normally present on the metal surface2,3).
Further,the pH of BTA solution which controls the thickness of the Cu BTA film has also been determined3).
Tolyltriazole (TTA, a mixture of 4- and 5-methyl-1. H-benzotriazole) is generally believed to act as a corrosion inhibitor in a manner similar to BTA, but little has been reported to confirm its inhibition function.
Recently it was found that BTA and TTA showed remarkable protection for four different kinds of metals and alloys both in aerated and nonaerated aqueous systems combined with Na2MoO4 and organic phosphates4).
However, mechanism of the synergism by the two triazoles has not been described in the literature.
The present paper reports a study of the corrosion inhibition action of BTA combined with TTA for improving the protection of copper, 70/30 brass and 60/40 brass in aerated 3 % NaCI solutions.
Synergestic effects of inhibition mechanisms of BTA and TTA are discussed in relation to surface topographies of the metals.
Tolyltriazole (TTA) has been widely used as a corrosion inhibitor for copper and copper alloy heat exchanger components in power plant cooling water systems.
In this work the effectiveness of TTA protection in the presence of free chlorine, monochloramine, and ammonia was studied, in the context of using secondary treated municipal wastewater as cooling water.
Results indicated that the corrosiveness of ammonia becomes negligible in the presence of TTA.
Also, monochloramine represents a better disinfection agent in terms of copper corrosion protection by TTA than free chlorine.
The packing density, film thickness, and number of layers of TTA adsorbed on the Cu surface were estimated from measurements and compared with estimates from other studies.
It was found that copper can work as a catalyst for free chlorine to degrade TTA and that the surface packing density, film thickness, and number of layers increased in the presence of monochloramine.
TTA is mainly used as antirust and corrosion inhibitor for metals (such as silver, copper, zinc, lead, nickel, etc..), and for antirust oil (tallow) products, the gas phase corrosion inhibitor of copper and aldary, lubricant additive, cycle water treating compound and auto antifreeze. TTA also can be concernedly used with manifold sterilization algaecide and has a very fine corrosion mitigation effect on close cycle cooling water system.
1. TTA is as effective an inhibitor for copper and brasses as BTA in both acidic and neutral chloride solutions.
These metals were more highly protected when TTA was combined with BTA.
However, TTA is not a suitable inhibitor for pretreatment of copper and its alloys when used alone.
2. BTA is considered to be a”film-forming type inhibitor” while TTA is probably an “adsorptive type inhibitor”.
Thick Cu TTA films or Cu TTA crystallites were not observed, in contrast to the thick Cu BTA films that could be observed using a scanning electron microscope.
In addition, strong absorption bands due to TTA or its complex were not recorded under the experimental conditions by means of infrared spectroscopy.
3. In combination, TTA suppresses thick Cu BTA film formation, and assures that the metal surfaces remain bright and clean in appearance.
By contrast, thick Cu BTA pretreatment films can confer a visible white haziness to the copper or brass surfaces.
The protective films formed on copper and brass in the solution of combined BTA and TTA must have been more protective in spite of reduced film thicknesses.
Corrosion in cooling systems can come in many forms, with one of them being galvanic corrosion.
Galvanic corrosion occurs when two dissimilar metals come in contact with each other in a solution; and in cooling systems that contain both steel and copper, a copper corrosion inhibitor is required.
The triazole chemistries, such as tolyltriazole (TTA) and benzotriazole (BZT) and methylbenzotriazole (MBT), are the most effective corrosion inhibitors for copper and its alloys.
Triazole compounds work by forming a protective cuprous oxide (Cu2O) film at the metal’s surface in heat transfer systems.
Additionally, triazoles bond with dissolved copper ions in solution. In boiler systems, alkaline ammonia can be produced by the breakdown of nitrogenous organic contaminants, or neutralizing amine chemicals.
Although ammonia does not attack steel, copper alloy corrosion can occur if enough ammonia and oxygen are present together; thus, creating a need for azole chemistries to ensure that the system is properly treated.
Primarily, the application of a copper corrosion inhibitor is utilized in open recirculating cooling and closed-loop cooling water systems.
However, these same products are a staple in other markets such as, Metal Working Fluids and Engine Coolants.
Azole chemistries are very complex and often technical assistance is needed to formulate these products into an effective water treatment program.
ATAMAN carries a complete line of azole chemical products to guard your clients systems against yellow metal corrosion.
What are Azoles?
Azoles are ringed organic molecules that are used as corrosion inhibitors for copper and copper alloys in cooling water treatment programs.
Azoles were originally developed as paint additives in the 1950’s; however, in the 1970’s, they were discovered to be effective copper corrosion inhibitors in aqueous systems.
How Do They Work?
Azoles bond with copper ions at the metal surface to form a protective layer that inhibits the oxidation reaction of the corrosion cell.
Azoles also react with copper ions in the bulk water phase to reduce soluble copper in the water.
What is the Significance of Soluble
Copper in the Bulk Water?
There are two primary concerns.
First, from an environmental standpoint, soluble copper is toxic and needs to be properly controlled in any discharge stream.
Second, soluble copper will plate out on mild steel surfaces and form galvanic corrosion sites that result in severe localized corrosion and premature failure of steel heat exchangers.
What Types of Azoles are Currently
Being Used?
The most common azole in the water treatment market is Tolyltriazole (TTA).
TTA is typically fed continuously to maintain a protective layer that will minimize copper alloy corrosion.
Two other azoles are Benzotriazole (BZT) and Copper-Trol (Inhibitor AZ8103).
BZT is similar to TTA in application technology but does not form as durable a film.
Copper-Trol forms the strongest protective layer of any azole but because of high costs, it is limited to slug feed applications where large volume systems need to be passivated quickly.
Both chlorine and bromine degrade TTA, BZT and Copper-Trol in the bulk cooling water, preventing their beneficial reaction with copper ions.
This can lead to excessive azole feed in order to maintain a residual in the cooling water sufficient to protect the copper surface.
The halogen-azole reaction also leads to an increase in demand on the halogen program and results in higher biocide feedrates.
In addition, when azoles are degraded and corrosion rates are compromised, copper ions will lead to galvanic pitting corrosion on mild steel surfaces which will reduce equipment life.
Finally, both chlorine and bromine attack the protective films formed by azoles, causing them to break down, resulting in a loss of corrosion protection
Tolyltriazole (TTA) has been identified as an effective copper corrosion inhibitor in cooling systems using treated municipal effluent as makeup water. Significant removal of TTA from solution has been reported in previous studies in the presence of free chlorine and copper metal. Hence, for effective dosing of TTA in the cooling systems, it is important to understand the depletion scenario of TTA in solution in the presence of free chlorine and copper metal. In this study, TTA depletion in solution was assessed using batch reactor experiments in the presence of varying concentrations of free chlorine and copper metal in synthetic cooling water simulating treated municipal wastewater. Increasing free chlorine concentration resulted in more depletion of TTA from solution in the presence of copper metal, which may be due to more adsorption of TTA on to the cuprous oxide surface formed with enhanced corrosion of copper metal and to the formation of insoluble copper-TTA complex with the released copper ions in solution. The enhancement of copper metal corrosion in the presence of TTA and increasing concentration of free chlorine were assessed using electrochemical potentiodynamic polarization experiments. Also, TTA adsorption on cuprous oxide surface was assessed in batch reactor experiments. Packing density of TTA on cuprous oxide surface was found to be pH dependent. More TTA was adsorbed onto cuprous oxide surface at higher pH values. Calculations of TTA free energy of adsorption showed that TTA was chemisorbed onto cuprous oxide.
Corrosion Inhibition of Galvanized Steel in NaCI Solution by Tolytriazole
Yanhong Yan1,2, Hongwei Shi1,, Jun Wang2,, Fuchun Liu1, En-Hou Han1
Corrosion inhibition of tolytriazole for galvanized steel was studied in 5 mM NaCl by using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS), scanning vibrating electrode technique (SVET).
The results of EIS and polarization tests indicate that tolytriazole is effective in corrosion inhibition of galvanized steel.
As the concentration of tolytriazole is increased to 0.01 M, the inhibiting efficiency reaches above 98%.
The low values of anodic and cathodic current density in SVET maps suggest that the complex of tolytriazole with galvanized steel inhibits the anodic and cathodic reactions of corrosion of zinc.
The adsorption behaviour of tolytriazole is found to conform to Langmuir adsorption isotherm, which is typical chemical adsorption.
As an important material, galvanized steel has been widely employed in construction, power communication, transportation vehicles, and so on, owing to the simplicity of manufacture, low cost and high efficiency.
A lot of research has been undertaken to elucidate the corrosion and protection mechanism of galvanized steel.
Zinc behaves as a barrier for steel when exposed to corrosive media.
Moreover, zinc also provides electrochemical protection for steel as a result of galvanic couple effect. The effect of corrosion protection depends on the thickness and compactness of the zinc coating .
Although zinc has protective effect on steel, it is also needed to apply other measures to improve the corrosion resistance of galvanized steel since zinc layer is normally thin.
Recently, researchers have attempted to use corrosion inhibitors to protect galvanized steel, which restrains zinc from the formation of white corrosion products in the corrosive media.
Literature has reported that some organic molecules with hetero-atoms (such as oxygen, nitrogen, sulphur and so on) can serve as corrosion inhibiting agents, which may be adsorbed on the surface of metals or react with metals to generate undissolved and stable metal complexes.
Triazole-type organic compounds, especially benzotriazole, including nitrogen are particularly used as corrosion inhibitors for copper, cast iron, zinc and so on.
Benzotriazole, which has low toxicity and is economical, finds use as a good corrosion inhibitor.
Benzotriazole has been studied as a corrosion inhibitor for galvanized steel in aerated corrosive solutions
Tolyltriazole (TTA), a mixture of 4- and 5-methyl-1H-benzotriazole, as a derivative of benzotriazole, is similar in chemical structure (Fig. 1).
However, the effect and mechanism of TTA on corrosion inhibition of galvanized steel is still not fully understood.
The aim of the present work is to study the inhibition effect of TTA on corrosion of galvanized steel in neutral NaCl solution.
Additionally, the inhibition efficiency of TTA on galvanized steel was investigated by using Langmuir adsorption isotherm model to obtain better understanding regarding the role of TTA on galvanized steel.
The term tolyltriazole (CAS 29385-43-1) is generally used for the commercial mixture composed of approximately equal amounts of 4- and 5-methylbenzotriazole with small quantities of the 6- and 7- methyl isomers (TNO BIBRA 1998)
Tolyltriazole occurs as tan to light brown granules with a characteristic odour.
Tolyltriazole is used as inhibitor of corrosion of copper and copper alloys, in antioxidants, and photographic developers
Benzotriazole and tolyltriazole are reported to be used in small amounts (0.1-0.2 %) in de-icing fluids, e.g. propylene glycol.
They are also used as a corrosion inhibitor in antifreeze chemicals containing glycol
Methylbenzotriazole
Methyl-1H-Benzotriazole
Tolyltriazol
COBRATEC(R) TT 100
METHYL-1H-BENZOTRIAZOLE
METHYL BENZOTRIAZOLE
1-H-METHYLBENZOTRIAZOLE
TOLYLTRIAZOLE
TOLYTRIAZOLE
1H-Benzotriazole,4(5)-methyl-
1H-Benzotriazole,4(or5)-methyl-
4(5)-methyl-1H-Benzotriazole
4(or5)-methyl-1h-benzotriazol
4(or5)-methyl-1H-Benzotriazole
cobratectt100
methyl-1h-benzotriazol
olin53734
tdlyltriazole
Methylbenzotriazole,98%
TOLYLTRIAZOLE, GRANULAR
Tolyltriazole, Powder
Tolyltriazol
Tolytriazole(Tta)
TOLYLTRIAZOLES
5-Methyl-1,2,3-benzotriazole
5-Methylbenzotriazole
Tolutriazole
Methyl-1H-benzotriazole (mixture)
1H-Benzotriazole, 6(or 7)-methyl-
Methybenzotriazole
PMC Cobratec TT-100
4(or 5)-Methylbenzotriazole
Preventol CI 7-100
Seetec T
Stabinol MBTZ
Methyl benzene Benzotriazole
Methylbenzotriazole(TTA)
Methyl-1H-Benzotriazole(Mix)
4-(p-Tolyl)-1H-1,2,3-triazole
1-H-METHYLBENZOTRIAZOLE COBRATEC(R) TT 100 METHYL-1H-BENZOTRIAZOLE METHYL BENZOTRIAZOLE TOLYLTRIAZOLE TOLYTRIAZOLE 1H-Benzotriazole,4(5)-Methyl- 1H-Benzotriazole,4(or5)-Methyl- 4(5)-Methyl-1H-Benzotriazole 4(or5)-Methyl-1h-benzotriazol 4(or5)-Methyl-1H-Benzotriazole cobratectt100 Methyl-1h-benzotriazol olin53734 tdlyltriazole Methylbenzotriazole,98% TOLYLTRIAZOLE, GRANULAR Tolyltriazole, Powder Tolyltriazol Tolytriazole(Tta)
Tolytriazole (TTA) – Granular
TTA 。TTA
Methyl-1H-benzotriazole (mixture)
Tolyltriazole,TTA,TTZ
5-Methyl-1H-benzotriazole TTA
Methyl-1H-benzotriazole(mixture)>
29385-43-1
C7HD6N3
Organic Chemicals
Copper corrosion inhibitor
Corrosion inhibitor
Aromatics
Heterocycles
Inhibitors
Isotope Labelled Compounds
rust and corrosion inhibitor for metals
Water treatment
Sodium Tolytriazole
Sodium Tolytriazole 50% Solution is a copper corrosion inhibitor designed for use in open cooling towers and closed recirculating systems to inhibit corrosion on copper, copper alloys and other metals.
SODIUM TOLYTRIAZOLE 50% SOLUTION
CAS#: 64665-57-2
Synonyms:Sodium Tolyltriazole, Tolytriazole, Sodium Salt, Methylbenzotriazole
Description:
Sodium Tolytriazole 50% Solution is a yellowish to amber liquid with a characteristic odor.
Applications:
Sodium Tolytriazole 50% Solution is a copper corrosion inhibitor designed for use in open cooling towers and closed recirculating systems to inhibit corrosion on copper, copper alloys and other metals.
The LD50-values reported for tolyltriazole were in the range of 675 to 3400 mg/kg b.w. in rats;
however, it is not clear whether the compound tested was the commercial tolyltriazole or the specific isomer 5-methylbenzotriazole.
An LD50 value for 5-methylbenzotriazole in mice was reported to be 800 mg/kg b.w.
Name 5-Methyl-1H-benzotriazole
Synonyms 5-Methylbenzotriazole
TOLYTRIAZOLE
1H-Benzotriazole,5-methyl-
5-Methyl-1H-1,2,3-benzotriazole
5-Methyl-1H-benzo-1,2,3-triazole
5-methyl-1h-benzotriazol
m-Tolylazoimide
Retrocure G
Vulkalent TM
COBRATEC(R) TT 100
Methyl-1H-Benzotriazole
Methyl Benzotriazole
1-H-Methylbenzotriazole
Tolyltriazole
1H-Benzotriazole,4(5)-methyl-
1H-Benzotriazole,4(or5)-methyl-
Methybenzotriazole
5-methyl-2H-benzotriazole
TTA
4,5,6,7-TetrahydroTolyltriazole
5M-BTA
Tolyltriazole (TTA)
CAS 136-85-6
29385-43-1
EINECS 249-596-6
1-methyl-1H-1,2,3-benzotriazole
1-methyl-1H-benzotriazole
1-methylbenzotriazole
1H-Benzotriazole, 4(5)-methyl-
1H-Benzotriazole, 4(or 5)-methyl-
1H-Benzotriazole, 6(or 7)-methyl-
4(or5)-methyl-1H-1,2,3-benzotriazole
4(or5)-methyl-1H-benzotriazole
4-Methyl-1H-1,2,3-benzotriazol
4-methyl-1H-benzotriazole
4-methyl-2H-benzotriazole
5-Methyl-1,2,3-benzotriazol
5-methyl-1H-1,2,3-benzotriazole
METHYL 1H BENZOTYRIAZOLE
methyl-1H-1,2,3-benzotriazole
Methyl-1H-benzotriazol
METHYL-1H-BENZOTRIAZOLE
Methyl-1H-benzotriazole
methyl-1H-benzotriazole
Methyl-1H-benzotriazole
methyl-1H-benzotriazole
Methyl-1H-benzotriazole (mixture)
METHYL-1H-BENZOTRIAZOLE-
Reaction mass of 4-methyl-1H-benzotriazole and 5-methyl-1H-benzotriazole
Reaction mass of 4-methyl-1H-benzotriazole and 5-methyl-1H-benzotriazole
Reaction mass of 6-methylbenzotriazole and 4-methyl-1H-benzotriazole
Tolyltriazol
Tolyltriazole
Triazole has three nitrogens. 1,2,3-Benzotriazole (1H-benzotriazole) has -N=N- bond whereas 2H-Benzotriazole has two -C=N- bonds.
Benzotriazole is a parent material to produce UV-absorbers.
1,2,3-Benzotriazole: Benzene ring-fused azole compounds; white to off-white crystalline powder; insoluble in water, soluble in ethanol, melting at 98.5 C.
Azole is a five-membered heterocycle compound containing unsaturated bonds and Nitrogen atoms.
Benzotriazole and its derivatives are versatile intermediates involved in the production of:
Corrosion Inhibitors
Anti-fading agent for metals
Antiseptic and Anticoagulant agent
Anti-fog for photograph
UV-absorbers
Anti-freeze Agent
Photoconductor
Copying systems
Pharmaceuticals, pesticide products and other specialty chemicals
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