Sodium hydrosulfide (NaHS) is an inorganic compound with the following characteristics and uses:Physical properties: Appearance and characteristics: Sodium hydrosulfide usually exists in colorless or light yellow crystalline form, and industrial products are generally in solution, appearing orange or yellow. Melting point: 52.54 ℃. Relative density: 1.79 (water=1). Solubility: Easily soluble in water and alcohol.
Chemical properties: Stability: Sodium hydrosulfide rapidly decomposes into sodium hydroxide and sodium sulfide in humid air, releases heat, and is prone to spontaneous combustion. Hydrolysis: Sodium hydrosulfide is a strong base weak acid salt, and the ionized hydrogen sulfide ions will hydrolyze to form hydrogen sulfide molecules.
The application of sodium hydrosulfide in the organic silicon industry is mainly reflected in the following aspects:
As a Raw Material For Sulfides: Sodium hydrosulfide can be used as a raw material for synthesizing sulfides in organic silicon products. For example, in the production process of organic silicon rubber, silicone oil and other products, sodium hydrosulfide may be used as a vulcanizing agent or accelerator to help complete the vulcanization reaction of the product.
Promoting Cross-linking Of Organosilicon products: During the production process of organosilicon products, sodium hydrosulfide may be used to promote cross-linking of organosilicon polymers, improving product stability and performance.
As An Auxiliary Agent: sodium hydrosulfide may be used as an auxiliary agent in the production of silicone products to help improve the performance of products, such as improving the abrasion resistance and aging resistance of rubber.
Application In Organic Silicon Agricultural additives: Sodium hydrosulfide is also used in the production of organic silicon agricultural additives, which can improve the adhesion and effectiveness of pesticides.
Application In Organic Silicon Coatings: Sodium hydrosulfide may be used in the production of organic silicon coatings as a leveling or wetting agent to improve the coating performance of the coatings.
Application In Organic Silicone Rubber: Sodium hydrosulfide may be used in the production of liquid silicone rubber, which is widely used in fields such as fabric coating, rubber stick, sealing, thermal conductivity sealing, mold forming, medical, food, adhesive sealing, etc.
It should be noted that sodium hydrosulfide has strong corrosiveness and irritating odor, so special attention should be paid to safety protection measures during its use in the organic silicon industry to avoid affecting the environment and human health. Meanwhile, due to the strong reducibility of sodium hydrosulfide, its application in the organic silicon industry requires strict control of reaction conditions to ensure product quality and production safety.
