Sulphur Black 1, with the CAS number 1326-82-5, is a synthetic organic dye primarily used in the textile industry for dyeing cotton and other cellulose fibers. It is classified as a sulfur dye, which means it is produced through the reaction of sulfur compounds with organic materials, resulting in a water-insoluble product that can be made soluble under specific conditions for application. This dye is known for its deep black color and excellent lightfastness, making it suitable for various applications, including fabrics and leather. Sulphur Black 1 is typically applied in an alkaline medium, where it undergoes a reduction process to become soluble, allowing it to penetrate the fibers. After dyeing, the dye is oxidized back to its insoluble form, fixing it to the substrate. Safety considerations include handling precautions, as it may cause irritation to the skin and eyes. Overall, Sulphur Black 1 is valued for its cost-effectiveness and durability in textile applications.

Sulphur Black 1

1326-82-5: Sulphur Black 1, with the CAS number 1326-82-5, is a synthetic organic dye primarily used in the textile industry for dyeing cotton and other cellulose fibers. It is classified as a sulfur dye, which means it is produced through the reaction of sulfur compounds with organic materials, resulting in a water-insoluble product that can be made soluble under specific conditions for application. This dye is known for its deep black color and excellent lightfastness, making it suitable for various applications, including fabrics and leather. Sulphur Black 1 is typically applied in an alkaline medium, where it undergoes a reduction process to become soluble, allowing it to penetrate the fibers. After dyeing, the dye is oxidized back to its insoluble form, fixing it to the substrate. Safety considerations include handling precautions, as it may cause irritation to the skin and eyes. Overall, Sulphur Black 1 is valued for its cost-effectiveness and durability in textile applications.

CAS 1326-82-5

Sulphur Black 1