Sulphur Black 1

• Molecular Formula:C6H4N2O5
• Molecular Weight:184.10600
• Appearance/Colour:Black flake/Granular 
• Boiling Point:660.3oC at 760 mmHg 
• Flash Point:353.1oC 
• PSA：111.87000 
• Density:1.87 g/cm3 
• LogP:2.25500 

Trustworthy Factory Supply Sulphur Black 1 On Stock,  Sells 1326-82-5

Sulphur Black 1 is a widely used sulfur dye known for producing deep black shades, primarily applied in dyeing cellulose fibers like cotton, as well as in textiles and garments. It is highly valued for its cost-effectiveness, strong color fastness, and ability to produce intense, durable black shades under reducing conditions. Sulphur Black 1 is typically applied in a dye bath containing sodium sulfide, which reduces the dye to a water-soluble form that can penetrate the fabric fibers. After application, the dye is oxidized to its original insoluble form, providing long-lasting coloration. Its use, however, requires careful handling due to the environmental concerns associated with sulfur-based compounds.Orchid Chemical Supplies Ltd was established in 2009.After more than 15 years of business accumulation, we have established good business relationships with over 25500 major factories in China, can quickly and efficiently connect with high-quality and reliable manufacturers. We distrubitor hydroxylamine hydrochloride and hydroxylamine sulfate. We have a good reputation in the pharmaceutical raw material macrocyclic lactone industry, so our factory has entrusted us to sell hydroxylamine products in the pharmaceutical industry. At the same time, we cooperate with more than 30 domestic R&D laboratories to customize products for customers, improve efficiency, and reduce costs. We collaborate with professional sea, air, and courier companies to ensure that cargos arrive at each customer's designated location quickly, safely, and compliantly. If you are looking for or inquiring about any chemicals, please feel free to contact us at any time at: sales@orchid-chem.com