Import Bis (Tert-Dodecyl Dithio) -1, 3, 4-Thiadiazole — Buy in Bulk from Supplier in China

Bis (tert-dodecyl Dithio) -1, 3, 4-thiadiazole, also known as T561, is a thiadiazole derivative metal deactivator with a minimum content of 98.5% as verified by HPLC. Developed by Yantai Heng Nuo Chemical Technology Co., Ltd, this compound is a yellowish transparent liquid that serves as a corrosion inhibitor for copper and non-ferrous metals in lubricating oils. Its chemical structure includes polysulfide bonds, which form protective sulfide films on metal surfaces, significantly reducing catalytic degradation in oil formulations.

The product exhibits excellent oil solubility and thermal stability, with a flash point of not less than 130°C (open cup) and a kinematic viscosity of not greater than 12 mm²/s at 50°C. Its acid value is a minimum of 20 mgKOH/g, and it achieves a copper sheet corrosion rating of not less than grade 1b at 100°C for 3 hours, as tested per GB/T5096. T561 is particularly effective in mitigating the corrosive effects of ZDDP on copper, a common issue in anti-wear hydraulic oils and internal combustion engine oils.

T561 is primarily used as a metal deactivator in lubricant formulations, including alkaline high-zinc anti-wear hydraulic oils, internal combustion engine oils, industrial gear oils, and quality gasoline engine oils. Adding 0.03-0.05% T561 to hydraulic oil formulations can improve hydrolysis stability, while 0.4-0.5% in engine oils can extend the TFOUT induction period by over 60 minutes. The product is typically packaged in 25 kg barrels and has a shelf life of one year when stored sealed at room temperature.

Yantai Heng Nuo Chemical Technology Co., Ltd is located at No.32, Zhujiang Road, Economic and Technological Development Zone, Yantai, Shandong Province, China. The company specializes in the development and production of chemical additives, with a focus on lubricant additives such as metal deactivators and corrosion inhibitors. Its products are designed for industrial applications, particularly in the petroleum and automotive sectors.

The supplier has a harbor trust tier, indicating verified export capabilities. Yantai Heng Nuo Chemical Technology Co., Ltd states that its T561 product is developed using independently absorbed foreign production technology, with all raw materials sourced domestically. The company does not provide response rate or average response time metrics, so buyers should plan for direct communication to confirm technical details and trade terms.