Chlorotolyltriazole Sodium Salt (HRA), CAS 202420-04-0
Chlorotolyltriazole Sodium Salt (HRA), CAS 202420-04-0, is a chlorinated methylbenzotriazole-based corrosion inhibitor used in industrial water treatment and metal protection formulations. It is associated with sodium salts of chlorinated methylbenzotriazole isomers and is commonly marketed as a liquid corrosion inhibitor.
Chemical Name: Reaction Mass of Chlorinated Methylbenzotriazole Sodium Salts
Commercial Name: Chlorotolyltriazole Sodium Salt
Abbreviation: HRA
CAS No.: 202420-04-0
EC No.: 427-730-6
Registered Substance Identity: Reaction mass of 4-chloro-7-methylbenzotriazole sodium salt, 4-chloro-5-methylbenzotriazole sodium salt and 5-chloro-4-methylbenzotriazole sodium salt
Registered Molecular Formula: C21H15Cl3N9Na3
Chemical Family: Chlorinated Methylbenzotriazole Derivatives
Product Type: Corrosion Inhibitor
Properties: It is golden yellow to amber liquid solution, soluble in water, chloroform, benzene, toluene and other organic solvents, with a lower alcohol, ethylene glycol miscible in any proportion.

Appearance: Yellow to amber liquid
PH Value: 12.2~14.0
Solid,%: 28%~34%
Specific Gravity@20℃, g/cm³: 1.07~1.21
This product can be used as the antirust and corrosion inhibitor of copper and aldary, and widely used for the cycle water treatment agent. It also can be used with manifold scale inhibitor and sterilization algaecide, and it works as corrosion inhibitor very well especially in the closed cycle cooling water system.
250kg/drum.
1200kg/IBC.

12000MT/year.
Store in tightly closed, compatible containers in a cool, well-ventilated area.
Protect the product from direct sunlight and contamination.
Hosea Chem® offers supply support for Chlorotolyltriazole Sodium Salt (HRA), CAS 202420-04-0, for copper corrosion inhibition, industrial water treatment and metal protection applications.