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[Chemical Knowledge]：Properties and uses of potassium oxalate

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Potassium oxalate is an important raw material for chemical production, which has a wide range of properties and uses. This article will introduce in detail the properties, preparation methods, safety and application of potassium oxalate in different fields.

1. the nature of potassium oxalate

potassium oxalate is a colorless crystal or white powder, with strong reduction and chemical stability. It is easily soluble in water and hardly soluble in ethanol and other organic solvents. Potassium oxalate is prone to decomposition under acidic conditions to produce oxalic acid and potassium salt. In addition, potassium oxalate also has good thermal stability and can maintain a good chemical structure under high temperature conditions. The preparation method of

2. potassium oxalate

potassium oxalate can be prepared by the reaction of oxalic acid and potassium hydroxide. The reaction equation is as follows:

H2C2O4 KOH → K2C2O4 H2O

In actual production, oxalic acid solution is usually mixed with potassium hydroxide solution to control the appropriate pH value, and potassium oxalate products are obtained through filtration, drying and other steps.

3. the safety of potassium oxalate

potassium oxalate has low toxicity to human body, but it may lead to diarrhea, vomiting and other gastrointestinal symptoms in the case of excessive intake. In addition, the reaction of potassium oxalate with certain substances may produce toxic gases, so it is necessary to pay attention to safe operation during production and use.

4. potassium oxalate application

1. chemical production: potassium oxalate is widely used in chemical production, as a raw material for the preparation of other compounds, such as for the production of oxalic acid, oxaloacetic acid, oxalic acid dimethyl ester and so on.
2. Food additives: Potassium oxalate can be used as a food additive to adjust the pH of food and increase the taste of food. Potassium oxalate can be used in pasta, dairy products, meat products and other foods to improve quality.
3. Pharmaceutical field: Potassium oxalate can be used as a pharmaceutical ingredient in the pharmaceutical field, with antibacterial, anti-inflammatory and other effects. In some topical drugs, potassium oxalate can be used as an active ingredient to play a therapeutic role.
4. Analytical reagent: Potassium oxalate is often used as a reagent in analytical chemistry, such as for determining the content of certain metal ions in titration analysis.

In short, potassium oxalate as an important chemical production raw materials, in various fields have a wide range of applications. Understanding and mastering the properties, preparation methods, safety and application in different fields of potassium oxalate is of great significance to give full play to its role.

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