Description

5-Chloro-2-Mercaptobenzothiazole, Zinc Salt is a specialized organometallic compound primarily valued for its role as a high-performance vulcanization accelerator in the rubber industry. Its core function is to significantly enhance the efficiency of the sulfur vulcanization process, leading to improved physical properties in the final rubber product. This chemical is essential for manufacturers in the automotive, industrial goods, and specialty elastomer sectors seeking to optimize cure rates and achieve superior product durability and performance.

Application

• Primary Vulcanization Accelerator in the production of various rubber goods, including tires, hoses, belts, and seals.
• Secondary Accelerator in synergistic systems with thiazoles or sulfenamides to fine-tune scorch safety and cure characteristics.
• Used in the formulation of EPDM (Ethylene Propylene Diene Monomer) rubber compounds for automotive weather-stripping and seals.
• Key component in Nitrile Rubber (NBR) formulations for oil-resistant applications like gaskets and O-rings.
• Employed in the manufacture of industrial rubber rollers and conveyor belts requiring specific modulus and heat aging resistance.
• Applicable in certain adhesive and sealant formulations where rubber-like properties are desired.

Basic Information

Product Name	5-Chloro-2-Mercaptobenzothiazole, Zinc Salt
CAS No.	53404-93-6
Molecular Formula	C14H6Cl2N2S4Zn
Molecular Weight	498.77 g/mol
Synonyms	Zinc 2-Mercapto-5-chlorobenzothiazole; Zinc 5-Chloro-2-benzothiazolethiolate; 5-Chloro-2-benzothiazolethiol, zinc salt; Zinc 5-Chloro-2-mercaptobenzothiazolate; Accelerator ZMBT-CI; Vulcanization Accelerator ZMBT-CI; ZMBT-CI; 2-Benzothiazolethiol, 5-chloro-, zinc salt (2:1)
EINECS	258-557-8

Quality Control

Our 5-Chloro-2-Mercaptobenzothiazole, Zinc Salt is produced under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot undergoes comprehensive analytical testing, including assay, identification, and impurity profiling. Certificates of Analysis (COA) documenting purity, physical properties, and compliance with agreed specifications are provided and available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Light yellow to off-white powder
Identification (IR)	Conforms
Assay (Zinc Content)	12.5% - 13.5%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Ash Content	Contact for details
Particle Size (Mesh)	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.