What is potassium sodium tartrate?
Potassium sodium tartrate, also known as Rochelle salt, is a double salt formed by sodium tartrate and potassium tartrate. It is a colorless to blue-white orthorhombic crystal, soluble in water, slightly soluble in alcohol, and has good complexing properties. Potassium sodium tartrate can not only be used as chemical reagents, laxatives, food additives, piezoelectric elements, and mirror-making reducing agents but also can be used to prepare biuret reagents and film reagents.
Potassium sodium tartrate uses
1. Used as a reducing agent in plate making, mirror making, and thermos bottle industry in the printing industry
2. Used in the telecommunications industry to make crystal speakers and microphones
3. Fertilizer industry ADA desulfurized
4. It can be used in glass or other industries
5. Monitoring of reducing sugar in food, adding copper tartrate to Fehling’s reagent to promote the formation of cuprous oxide
6. Used to shield metal ions in chemical analysis
7. Food industry: Potassium sodium tartrate is a food sour agent, which can be used in brewing wine, beer, candy, jam, yogurt, and other foods to enhance the acidity and taste of food. There are also cheese, jelly, jam, meat products, and margarine.
8. Pharmaceutical industry: Potassium sodium tartrate can be used as a neutralizer, laxative, etc. Used in drug formulation, it can adjust the pH and stability of drugs.
9. Textile industry: Potassium sodium tartrate can be used as a neutralizer for dyes and dyeing agents, and can adjust the color and stability of dyes.
10. Electroplating industry: Potassium sodium tartrate can be used in the electrolyte of silver plating and gold plating, which can adjust the pH value and electrochemical balance of the electrolyte, thereby improving the quality and efficiency of electroplating. It can also be used as a complex agent.
11. Paint industry: Potassium sodium tartrate can be used as a buffer in the production of paint to adjust the PH value and stability of the paint.
Preparation of potassium sodium tartrate
1. Preparation of crude product:
(1) Neutralization: Put the raw material potassium hydrogen tartrate into the tank, add twice the amount of water, heat it with steam, and boil it, then slowly add dry sodium carbonate for neutralization under constant stirring until no bubbles are generated. At this point, the solution was neutral with litmus paper.
(2) Filtration: filter while hot with a cloth bag. The filtrate should be transparent or nearly transparent.
(3) Concentration and crystallization: transfer the filtrate into an enamel bucket, heat and evaporate until the concentration of the solution is 38-42 degrees Baume. Take it out and put it in a shallow dish (the thickness is preferably 15-20 cm), and let it stand at room temperature for 24 hours to crystallize naturally. Separate the mother liquor, take out the crystals, wash once with cold water (the washing water and the mother liquor are combined and recovered), and the crude product of potassium sodium tartrate is obtained.
2. Refining of crude product:
Heat and dissolve the crude product with the appropriate amount of water (1-2 times), and add activated carbon for decolorization (the amount of activated carbon added is 5-15% of the sample amount). After stirring for 10 minutes, filter (the filtrate is recrystallized with the treatment method of coarse crystal, the crystal should be colorless and transparent) to separate the mother liquor, wash and air dry or dry at 50°C to obtain the finished product.
The method improving the production efficiency of potassium sodium tartrate
Raw material quality control: High-purity tartaric acid, sodium hydroxide, potassium hydroxide, and other raw materials need to be used in the production process of potassium sodium tartrate. Therefore, quality control of raw materials is required to ensure stable quality and high purity of raw materials.
Optimization of reaction conditions: Optimization of reaction conditions is an important means to improve production efficiency. Factors such as reaction temperature, reaction time, and pH value have a great influence on the reaction rate and yield. In the process of selecting and optimizing reaction conditions, factors such as reaction rate, yield, and product quality need to be considered comprehensively to achieve the purpose of improving production efficiency.
Improvement of the production process: Improving the production process is another important means to improve production efficiency. The production efficiency can be improved by improving the design of the reactor, the operation mode of the reactor, the delivery mode of the reactants, etc. At the same time, methods such as continuous production processes can also be adopted to improve production efficiency and output.
Increased product purity: Improved product purity can also increase production efficiency. In the process of product separation, washing, and drying, it is necessary to select an appropriate separation and purification process to ensure that the product has high purity and fewer impurities.
In the end
The above is the information about the application and preparation of potassium sodium tartrate. Potassium sodium tartrate has a wide range of applications, and its preparation method is also very simple. As a Potassium Sodium Tartrate manufacturer with many years of experience, Jinbangch offers many types of Potassium Sodium Tartrate. Including food grade, industrial grade, medical grade, and so on. Products such as potassium hydrogen tartrate are also available. If you have any needs, welcome to contact us.