What is Tolyltriazole (TTA) CAS 29385-43-1?

Tolyltriazole is a methyl-substituted benzotriazole corrosion inhibitor with the molecular formula C7H7N3. It is mainly supplied as a white to light-yellow powder or granule for protecting copper and copper alloys.

How does Tolyltriazole differ from benzotriazole?

TTA contains a methyl group on the benzene ring, while benzotriazole does not. TTA is often selected where better organic-solvent solubility, thermal stability or chlorine resistance is required in the final formulation.

How is Tolyltriazole normally introduced into cooling water?

Because TTA has low water solubility, it is usually first dissolved in a compatible alcohol or dilute alkali and then dosed into the recirculating water. Typical cooling-water use levels are around 2-10 mg/L, with site-specific passivation programmes used for heavily corroded systems.

What are the main industrial uses of Tolyltriazole?

It is used in recirculating cooling-water treatment, automotive coolants and antifreeze, metalworking fluids, rust-preventive oils and lubricants. Its principal function is copper-alloy protection in formulations where an azole inhibitor is required.

Which properties should be defined when buying TTA?

Specify assay, moisture, ash, chloride, powder or granule form, particle-handling requirements and dissolution route. These controls should be matched to the finished corrosion-inhibitor formulation rather than selected from CAS number alone.

Tolyltriazole (TTA) CAS 29385-43-1

Tolyltriazole, commonly abbreviated TTA, CAS 29385-43-1, is a copper-corrosion inhibitor supplied as an off-white powder or granule for closed-loop water, antifreeze, lubricant and metalworking use. Confirm the required grade, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 29385-43-1
Synonyms: Tolyltriazole; TTA; Methylbenzotriazole; 4/5-Methylbenzotriazole
Einecs: Not specified
Molecular Formula: C7H7N3
Grade: Industrial powder or granule grade; assay and moisture confirmed by COA
Package: Sealed 25 kg bags or fibre drums; final packaging selected for moisture control and export requirements

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Product Description

Tolyltriazole (TTA) CAS 29385-43-1 is methylbenzotriazole, with molecular formula C7H7N3.

Synonyms: Tolyltriazole; TTA; methylbenzotriazole; 4/5-methylbenzotriazole.

CAS: 29385-43-1.

Molecular formula: C7H7N3.

It is mainly supplied as a white to light-yellow powder or granule.

It protects copper and copper alloys as an azole corrosion inhibitor.

It is selected where an azole component is needed for closed-loop cooling water, antifreeze, lubricant or metalworking use.

It differs from benzotriazole by having a methyl group on the benzene ring.

TTA is often preferred for better organic-solvent solubility, thermal stability or chlorine resistance.

Because TTA has low water solubility, it is usually dissolved in a compatible alcohol or dilute alkali before dosing.

Typical cooling-water use levels are around 2-10 mg/L, with site-specific passivation programmes for heavily corroded systems.

It is used in recirculating cooling-water treatment, automotive coolants, metalworking fluids, rust-preventive oils and lubricants.

For quotation, specify powder or granule form, assay, moisture, ash, chloride and particle-handling requirements.

Store in sealed containers to control moisture and follow the applicable SDS for handling.

Use suitable PPE when handling to avoid dust exposure and skin or eye contact.

Confirm assay, moisture and physical form on the COA.

Confirm grade, packaging, and specification as required.

The page is an RFQ entry point and does not state stock, price, MOQ, or fixed lead time.

For an RFQ, state the intended application, required grade, quantity, packaging, destination, and document needs.

FAQ - Technical & Supply Chain

Q:
What is Tolyltriazole (TTA) CAS 29385-43-1?

A: Tolyltriazole is a methyl-substituted benzotriazole corrosion inhibitor with the molecular formula C7H7N3. It is mainly supplied as a white to light-yellow powder or granule for protecting copper and copper alloys.
Q:
How does Tolyltriazole differ from benzotriazole?

A: TTA contains a methyl group on the benzene ring, while benzotriazole does not. TTA is often selected where better organic-solvent solubility, thermal stability or chlorine resistance is required in the final formulation.
Q:
How is Tolyltriazole normally introduced into cooling water?

A: Because TTA has low water solubility, it is usually first dissolved in a compatible alcohol or dilute alkali and then dosed into the recirculating water. Typical cooling-water use levels are around 2-10 mg/L, with site-specific passivation programmes used for heavily corroded systems.
Q:
What are the main industrial uses of Tolyltriazole?

A: It is used in recirculating cooling-water treatment, automotive coolants and antifreeze, metalworking fluids, rust-preventive oils and lubricants. Its principal function is copper-alloy protection in formulations where an azole inhibitor is required.
Q:
Which properties should be defined when buying TTA?

A: Specify assay, moisture, ash, chloride, powder or granule form, particle-handling requirements and dissolution route. These controls should be matched to the finished corrosion-inhibitor formulation rather than selected from CAS number alone.

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