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[Chemical Knowledge]：Nature and use of insurance powder

Read： 776 Time：11months ago Source：Transform the World with Simplicity

Sodium hydrosulfite, also known as sodium dithionite, is a white crystalline powder that is an important member of the raw materials for chemical production. Its molecular formula is Na2S2O4 and its molecular weight is 174.04. The insurance powder has strong reducibility and is a strong reducing agent. It is soluble in water, acid decomposition, stable in alkaline medium. The insurance powder will gradually oxidize into sulfate in the air and lose its original effectiveness. The properties of

insurance powder are mainly manifested in the following aspects: First, it has good reducibility and can reduce many metal ions, such as silver and gold. Secondly, the water solubility of the insurance powder is very good and can be quickly dissolved in water. In addition, sodium hydrosulfite is stable to heat, but decomposes rapidly under acidic conditions.

insurance powder has a wide range of uses, mainly used in the following aspects: First, insurance powder can be used as a bleaching agent for textile bleaching. The advantage is that the fiber is not damaged, and the fabric color is bright after bleaching. Secondly, insurance powder can also be used in organic synthesis, such as synthetic rubber, plastic and so on. In addition, the insurance powder can also be used to prepare some special metal compounds, such as metal complexes. At the same time, insurance powder is also used in the food industry, mainly as a food additive, play a role in anti-corrosion and anti-oxidation.

However, although the insurance powder has a wide range of uses, it also needs to pay attention to safety during use. Due to its strong reducibility, the sodium hydrosulfite may react with many substances, creating a hazard. Therefore, when using insurance powder, it is necessary to strictly abide by the operating procedures to ensure safety.

In general, sodium hydrosulfite as an important chemical raw material, its nature and use is very extensive. In the process of use, we need to fully understand its nature and strictly abide by the operating procedures to ensure safety and effectiveness.

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