Potassium ethylenediaminetetraacetic acid has good solubility and is easily soluble in water, with a solubility of over 60% in water. At the same time, the dissolution rate of EDTA tripotassium is also fast, which makes it widely used in many fields, such as anticoagulants, ion exchangers, etc. Due to the fact that the original shape of EDTA potassium trioxide is in powder form, in order to facilitate better use by blood collection manufacturers, the raw material supplier Desheng has provided detailed operating methods.
Dissolution steps of EDTA-3K in water
1. Preparation: Electronic balance (1/10000), volumetric flask (100ml, 200ml, 500ml, 1000ml, as needed), beaker, deionized water (distilled water), glass rod, bottle washing, etc.
2. Weighing: Use an electronic balance to accurately weigh a number of pre-determined EDTA potassium powder, accurate to one percent;
3. Dissolution: This product is dissolved in distilled water and deionized water. Slowly pour EDTA potassium powder into a volumetric flask or beaker that has previously been partially filled with distilled water (deionized water) while stirring continuously. Carefully rinse the powder attached to the mouth and wall of the volumetric flask or beaker into the flask or beaker using a washing bottle; Special attention should be paid to cleaning the volumetric flask and beaker thoroughly, and there should be no impurities, oil stains, or oxides present. When using a beaker for dissolution, special attention should be paid to the control of water consumption during the dissolution process. Sufficient volume should be left for the EDTA dipotassium adhered to the cleaning glass rod, beaker, and other utensils in the future, otherwise it may cause over capacity and reduce the concentration of dipotassium.
4. Constant volume: After all EDTA potassium is dissolved, keep your eyes level with the scale line of the volumetric flask. Slowly add deionized water along the mouth wall of the volumetric flask with a washing bottle, and wait for the concave liquid level bottom to align with the scale line.
5. Mix well: Seal the mouth of the volumetric flask with a stopper, hold the upper part of the flask with one hand and press the stopper with your fingers, and hold the bottom of the flask with the other hand. Carefully invert and mix well 5-8 times.
6. Inspection and confirmation: Carefully check the key factors such as the weight weighing of potassium dioxide and the volume of the volumetric flask, recalculate the potassium dioxide content, and confirm that it is correct.
The dissolution process of EDTA tripotassium in water may cause some problems
1. Solution stability: The dissolution process of potassium ethylenediaminetetraacetate in water may affect the stability of its solution. If the dissolution rate is too fast or the temperature changes too much during the dissolution process, it may lead to precipitation or crystallization in the solution, affecting the effectiveness of use.
2. Impurities and precipitates: Potassium ethylenediaminetetraacetic acid may contain impurities or precipitates, which may precipitate during the dissolution process and affect the effectiveness of use. In addition, if unclean solvents or containers are used during the dissolution process, it may also lead to the generation of impurities and precipitation.
3. Oxidation reaction: Tripotassium ethylenediaminetetraacetic acid is a reducing substance that is easily oxidized. During the dissolution process, if exposed to oxygen or oxidized by other oxidants, it may cause changes in its chemical properties and affect its effectiveness.
4. Compatibility issues: When mixed with certain substances, potassium ethylenediaminetetraacetate may cause compatibility issues, leading to precipitation, discoloration, or gas generation in the solution. Therefore, when using potassium ethylenediaminetetraacetate, it is necessary to pay attention to its compatibility with other chemicals.
5. Environmental pollution: Failure to comply with environmental regulations or improper operation during the dissolution process may lead to environmental pollution. For example, if wastewater containing harmful substances is directly discharged into the environment, it may have adverse effects on the ecological environment.
In summary, the solubility of EDTA tripotassium is influenced by factors such as temperature, stirring speed, solvent type, and impurities. Therefore, in practical applications, adjustments and treatments need to be made according to specific circumstances.Desheng specializes in producing various types of blood collection additives. If you need them, please feel free to contact me!
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