Thiosulfuric acid, SS,SS’-1,6-hexanediyl ester, sodium salt
Thiosulfuric acid, SS,SS’-1,6-hexanediyl ester, sodium salt (CAS: 5719-73-3), commercially known as Duralink HTS, is a specialized bifunctional thiosulfate compound designed as a cross-linking agent for sulfur-vulcanized rubber. Featuring two thiosulfate groups connected by a flexible six-carbon hexamethylene bridge, this innovative additive participates in the vulcanization network, forming hybrid cross-links that combine the thermal stability of monosulfidic bonds with the fatigue resistance of polysulfidic linkages. The result is rubber compounds exhibiting significantly improved reversion resistance, heat aging performance, and flex-fatigue life, particularly critical for high-performance tire applications. It also serves as a post-vulcanization stabilizer, maintaining physical properties during extended service at elevated temperatures. Supplied as a stable, water-dispersible powder, it integrates readily into standard rubber mixing processes. This compound represents advanced rubber technology for demanding dynamic applications.
– Tire Tread Compounding: Used as a cross-linking agent in passenger and truck tire formulations to improve reversion resistance, heat buildup control, and tread durability.
– Rubber Vulcanization: Enhances the cross-link network during curing, creating hybrid sulfidic bonds that balance strength, elasticity, and thermal stability.
– Dynamic Fatigue Resistance: Significantly improves flex-fatigue life and crack growth resistance in rubber components subjected to repeated deformation.
– Industrial Rubber Goods: Applied in hoses, belts, and seals requiring sustained performance under high-temperature service conditions.
Product Name: Thiosulfuric acid, SS,SS’-1,6-hexanediyl ester, sodium salt
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