news

Sodium sulfide is a widely used chemical raw material, often used in dye, electroplating, leather and textile industries. Although the use of sodium sulfide has a long history, but there is still a use problem is not solved, that is, the preservation of sodium sulfide. Mainly due to the solid sodium sulfide in the air is particularly hygrogenic decomposition, in addition, sodium sulfide will also decompose in heat, and sodium sulfide aqueous solution is more difficult to preserve, because sodium sulfide is configured into a solution is particularly volatile, must be used now, so this also leads to sodium sulfide is not easy to preserve. So how is sodium sulfide preserved? Here with heng Billion chemical together to see it!Preservation of sodium sulfideWith the current industrial demand for sodium sulfide is continuous, and some industrial demand is quite large, so the preservation of sodium sulfide for the need to use a lot of sodium sulfide industry is undoubtedly a major problem. In view of this, now the domestic industry has also done a variety of experimental studies, the study found that the preservation of sodium sulfide for the storage of sodium sulfide also plays a great role, and the preservation of solid products and liquid products are different.Preservation method of sodium sulfideSolid sodium sulfide preservation method: because the chemical properties of sodium sulfide solid products are not very stable, so in the preservation should pay attention to not make the period of moisture absorption and heat, it is best to save in dry and cool place away from light, if there are better conditions to meet, it is best to save in a vacuum environment.Liquid sodium sulfide preservation method: because sodium sulfide solution is volatile, can not be in contact with the air when preserved, glycerin can be added to avoid reaction metamorphism, and then sealed with glass instruments to preserve it, preservation environment like solid sodium sulfide must be dry and cool place away from light.Warm tips: in the process of using sodium sulfide, attention should be paid to protective measures to prevent the inhalation of sodium sulfide produced by toxic gas poisoning, second to avoid skin burns.