Sulphur Black dyes and Sodium Hydrosulphite dyes are primarily used in the textile industry for dyeing cellulosic fibers such as cotton and rayon. They are also utilized in the paper industry for bleaching purposes and in various other industries requiring reducing agents.

• Sulphur Black Dyes: These dyes are applied to textiles through a process involving reduction (making the dye water-soluble), dyeing, and subsequent oxidation to render the dye insoluble within the fiber, providing durable coloration.

• Sodium Hydrosulphite: This chemical serves as a reducing agent in dyeing processes, particularly for vat and sulfur dyes. It’s also employed in bleaching processes in the paper and textile industries

• Personal Protective Equipment (PPE): Use appropriate PPE, including gloves, safety goggles, and protective clothing, to prevent skin and eye contact.

• Ventilation: Ensure adequate ventilation in work areas to avoid inhalation of dust or fumes.

• Storage: Store chemicals in a cool, dry place away from incompatible substances.

• Sulphur Black Dyes: When stored properly in a cool, dry environment, these dyes typically have a shelf life of several years.

• Sodium Hydrosulphite: This chemical has a long shelf life if kept in airtight containers to prevent exposure to moisture and oxygen, which can reduce its effectiveness.