Sodium Sulfide

Sodium sulfide is a yellow or brick-red crystalline compound with a strong odor of hydrogen sulfide. It is soluble in water and forms a strongly alkaline solution. Sodium sulfide is commonly used as a reducing agent in various industrial processes.

Uses:

Sodium sulfide is primarily used in the paper and pulp industry as a cooking liquor for wood and in the textile industry for dyeing and de-sulfurizing. It is also used as a depilatory agent in the leather industry and as a bleaching agent for hair in the cosmetic industry. In addition, sodium sulfide is used as a precursor for the production of various chemicals, including sodium polysulfides, thio-organic compounds, and sulfur dyes.

Industrial Applications:

Sodium sulfide finds extensive use in various industries, including pulp and paper, textile, leather, and chemical manufacturing. In the pulp and paper industry, it is used as a cooking liquor to break down wood chips and separate cellulose fibers. In the textile industry, it is used as a de-sulfurizing agent to remove sulfur impurities from textiles. In the leather industry, it is used as a depilatory agent to remove hair from animal hides. In the chemical industry, it is used as a reducing agent to produce various chemicals, such as thio-organic compounds and sulfur dyes.

Safety and Handling:

Sodium sulfide is a highly toxic and corrosive substance that can cause severe burns and respiratory irritation. It is also flammable when exposed to air. Proper ventilation and protective equipment, such as goggles and gloves, should be used while handling sodium sulfide. In case of skin contact, the affected area should be immediately washed with water, and medical attention should be sought.

Un number:

The UN number for sodium sulfide is UN 1849.