Tolyltriazole (TTA) CAS 29385-43-1

What Is Tolyltriazole?

Tolyltriazole, commonly abbreviated as TTA and also known as tolutriazole or methylbenzotriazole, is an organic azole compound primarily used as a corrosion inhibitor for copper, brass and other copper-containing alloys.

Commercial Tolyltriazole with CAS No. 29385-43-1 is generally supplied as a mixture of methylbenzotriazole isomers. It is commonly available as an off-white to light-yellow crystalline powder or granule.

TTA adsorbs onto metal surfaces and helps create a protective film that reduces corrosion, tarnishing and metal-ion release. Its actual performance depends on the metal, pH, temperature, water chemistry and the other additives in the formulation.

Tolyltriazole Product Information

Is Tolyltriazole Organic or Inorganic?

Tolyltriazole is an organic compound. Its molecular structure contains a benzene ring, a nitrogen-containing triazole ring and a methyl group.

Commercially, TTA is best classified as a specialty fine chemical and corrosion inhibitor. It may also be used as a formulation or synthesis intermediate, but corrosion control is its principal industrial function.

Typical Tolyltriazole Specifications

The following values represent common commercial targets. Final specifications must be confirmed through the agreed product specification and batch Certificate of Analysis.

Specifications such as chloride, isomer distribution, particle form, color and solution clarity can be added when required by the customer’s formulation or incoming-quality-control program.

How Does Tolyltriazole Help Protect Copper and Brass?

Tolyltriazole molecules adsorb onto copper and copper-alloy surfaces. The nitrogen-containing triazole group interacts with the metal surface and helps form a thin protective layer that restricts corrosive reactions.

This protective effect can help reduce copper staining, brass tarnishing and metal-ion release. However, performance should always be validated in the customer’s complete formulation and intended service conditions.

Why System Conditions Still Matter

TTA performance may be influenced by:

• System pH and alkalinity

• Water hardness and dissolved salts

• Operating temperature

• Copper and brass alloy composition

• Oxidizing biocides

• Glycol concentration

• Surfactants, dispersants and other inhibitors

• TTA concentration and addition method

A laboratory compatibility test is recommended before changing the inhibitor type or introducing TTA into an existing treatment program.

Main Tolyltriazole Applications

Industrial Cooling-Water Systems

TTA is used in closed and recirculating cooling-water systems containing copper tubes, brass valves or copper-alloy heat exchangers. It is normally incorporated into a broader treatment program rather than used as the only corrosion-control component.

Antifreeze and Engine Coolants

TTA may be added to glycol-based coolant packages to help protect copper and brass components. The complete coolant formulation should be tested for stability, reserve alkalinity and compatibility with other inhibitors.

Metalworking Fluids

In soluble oils, semi-synthetic fluids and selected synthetic metalworking formulations, TTA can help protect copper-containing equipment and workpieces from staining and corrosion.

Lubricants and Hydraulic Fluids

TTA may function as a copper corrosion inhibitor or metal deactivator in selected lubricants, hydraulic fluids and industrial oil formulations.

Metal Cleaners and Process Fluids

TTA can be incorporated into compatible aqueous or solvent-based metal-care formulations when copper and brass protection is required during cleaning, processing or temporary storage.

Tolyltriazole vs Benzotriazole vs Sodium Tolyltriazole

These products should not be treated as automatically interchangeable. The correct option depends on the formulation pH, production process, target metal, solubility requirements and dosing equipment.

How Should Buyers Select a TTA Grade?

Before purchasing Tolyltriazole, buyers should confirm:

1. Whether solid TTA or a sodium TTA solution is required.

2. The minimum assay and permitted moisture and ash levels.

3. Whether the isomer profile must be controlled.

4. Whether powder, granules or another particle form is preferred.

5. The intended application and metal combination.

6. Solubility requirements in the finished formulation.

7. Required packaging and annual purchasing volume.

8. Destination-country regulatory and transport requirements.

For recurring orders, the same specification and test method should be used for both supplier release and customer incoming inspection.

Solubility and Formulation Considerations

Tolyltriazole has limited water solubility under neutral conditions. It is more readily incorporated through a compatible alkaline solution, glycol system or suitable formulation process.

Customers should not rely only on visual dissolution. The finished formulation should also be checked for precipitation, haze, filter blockage and storage stability across its expected temperature range.

If direct liquid dosing is required, sodium Tolyltriazole may be more convenient than solid TTA.

Packaging and Storage

Tolyltriazole is commonly supplied in moisture-resistant bags or drums with an inner liner. Available packaging should be confirmed when requesting a quotation.

Store the product in a cool, dry and well-ventilated location. Keep the packaging tightly closed and protect it from moisture, heat and incompatible materials.

Avoid dust generation during handling. Packaging, storage and handling procedures must follow the current Safety Data Sheet and applicable local regulations.

Safety and Transport Information

Tolyltriazole may be classified as harmful if swallowed, irritating to the eyes and hazardous to aquatic life, depending on the applicable jurisdiction and supplier documentation.

Personnel should use suitable protective gloves, protective clothing and eye protection. Prevent the material from entering drains, soil or surface water.

Transport classification should not be determined from the CAS number alone. Always consult the current supplier SDS, product form, package size and destination-country regulations before shipment.

Quality and Procurement Documents

The following documents can support supplier qualification and order approval:

• Certificate of Analysis for each batch

• Technical Data Sheet

• Current Safety Data Sheet

• Product specification

• Packaging information

• Country-of-origin statement

• Regulatory or REACH-related statement where applicable

Application-specific requirements should be agreed before the purchase order is issued.

Why Source Tolyltriazole from AOZUN?

AOZUN supports industrial buyers and formulators with Tolyltriazole sourcing, specification confirmation, export packaging and shipment documentation.

When contacting AOZUN, provide the required purity, product form, application, order quantity, destination country and documentation requirements. This allows the appropriate specification and packaging option to be evaluated more efficiently.

Tolyltriazole Frequently Asked Questions

Is Tolyltriazole the same as Benzotriazole?

No. Tolyltriazole is a methyl-substituted benzotriazole, while Benzotriazole has no methyl substituent. They have different CAS numbers and physical properties.

Is commercial TTA a single chemical isomer?

Commercial TTA is generally a mixture of methylbenzotriazole isomers. Buyers requiring a controlled isomer profile should include this requirement in the specification.

Is Tolyltriazole soluble in water?

Its solubility in neutral water is limited. Incorporation can be improved through an alkaline solution or another compatible formulation process. Sodium Tolyltriazole is often selected for direct liquid dosing.

Can TTA be used for steel and aluminum?

TTA is primarily selected for copper and copper alloys. Protection of steel or aluminum normally requires a complete multi-metal inhibitor package and application testing.

What information is needed for a Tolyltriazole quotation?

Please provide the required grade, specification, product form, quantity, packaging, destination port or address and required delivery date.

Request a Tolyltriazole Quote

Contact AOZUN for Tolyltriazole specifications, COA, SDS, packaging options, sample availability and commercial pricing.

Please include your intended application, required quantity, destination country and preferred product form so that AOZUN can prepare an appropriate supply proposal.