Sodium hydrosulfide is an inorganic compound with the chemical formula NaHS, consisting of:
Dye industry. An additive used for synthesizing organic intermediates and preparing sulfide dyes.
Tanning industry. Used for hair removal and tanning of raw hides.
Fertilizer industry. Used to remove monomer sulfur from activated carbon desulfurizers.
Mining industry. Widely used for copper ore beneficiation.
Artificial fiber production. Used for sulfite staining.
The pesticide industry. It is an important raw material for producing insecticides, fungicides, and herbicides.
The pharmaceutical industry. Used for the production of various drugs and reagents.
The rubber and synthetic materials industry. Used for producing a variety of rubber and synthetic materials.
In the field of chemistry. As a reducing agent, vulcanizing agent, and catalyst, it is used in metal ion reduction, rubber manufacturing, paper processing, promoting chemical reactions, drug manufacturing, treating diseases, medical equipment manufacturing, food processing, food additive manufacturing, food seasoning manufacturing, beverage manufacturing, cleaning and detergent manufacturing, battery and electronic equipment manufacturing, etc.
First-aid measures：
Skin contact: Immediately remove contaminated clothing and rinse with plenty of flowing water for at least 15 minutes. Seek medical attention.
Eye contact: Immediately lift the eyelids and thoroughly rinse with plenty of flowing water or physiological saline for at least 15 minutes. Seek medical attention.
Inhalation: Quickly remove from the scene to a place with fresh air. Maintain airway patency. If breathing is difficult, administer oxygen. If breathing stops, immediately perform artificial respiration. Seek medical attention.
Ingestion: Rinse mouth with water and drink milk or egg white. Seek medical attention.
Firefighting measures
Harmful combustion products: hydrogen sulfide.
Fire extinguishing method: Firefighters must wear filter type gas masks (full face masks) or isolation type respirators, wear full body fire and gas protective clothing, and extinguish the fire upwind. Try to move the container from the fire to an open area as much as possible. Spray water to keep the fire container cool until the fire is extinguished. If the container in the fire scene has changed color or produced sound from the safety pressure relief device, it must be evacuated immediately.
Extinguishing agent: fog water, foam, dry powder, carbon dioxide, sand.
HANDLING AND STORAGE
Operation precautions: Closed operation, local ventilation. Operators must undergo specialized training and strictly adhere to operating procedures. It is recommended that operators wear dust masks (full face masks), rubber protective clothing, and rubber gloves. Stay away from sparks and heat sources, and smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Prevent smoke or dust from leaking into the workplace air. Avoid contact with oxidants and acids. Light loading and unloading during transportation to prevent packaging damage. Equip corresponding types and quantities of fire-fighting equipment and emergency response equipment for leaks. Empty containers may have residual harmful substances.
Storage precautions: Store in a cool and ventilated warehouse. Stay away from sparks and heat sources. It should be stored separately from oxidants, acids, and edible chemicals, and should not be stored together. Adopting explosion-proof lighting and ventilation facilities. Prohibit the use of mechanical equipment and tools that are prone to generating sparks. The storage area should be equipped with emergency response equipment for leaks and appropriate containment materials. The "Five Double" management system for extremely toxic substances should be strictly implemented.