How to prepare edta-2na solution

Details:

Edta-2na is a kind of white crystalline powder, which is odorless, tasteless, soluble in water, and extremely difficult to dissolve in ethanol. It can also be used as heavy metal detoxification, complexing agent, antioxidant synergist, stabilizer and softener; It is used as anticoagulant in the additive of blood collection vessel. In use, edta-2na is usually configured as solution, so it is inevitable to encounter various problems in these solutions. Let's learn how to solve these problems.

How to dissolve edta-2na What about insoluble

It can dissolve at room temperature, but the speed is very slow. The solubility of EDTA in water is small, and it is easy to dissolve in alkaline, so NaOH should be added.

Can edta-2na be dissolved by heating

Edta-2na is soluble in boiling water at 160 ℃ and slightly soluble in cold water. EDTA can be dissolved in sodium hydroxide, sodium carbonate and ammonia solution, and neutralization reaction will occur. It is insoluble in alcohol and general organic solvents, and can chelate with calcium and magnesium plasma. Its melting point is higher than 220 ℃ and will decompose.

How to make edta-2na dissolve completely

The solubility of edta-2na in water is about 110g / L. it dissolves slowly at room temperature. Heating can accelerate the dissolution, and cooling after dissolution will not precipitate.

Is edta-2na harmful to skin during operation

In fact, our edta-2na can adjust the pH of cosmetics in skin care products, that is to say, it can automatically adjust the pH of cosmetics within the range we can fit, so as to protect our skin from strong stimulation. Therefore, in a certain amount of cases, it can protect the skin, so it is not necessary to worry too much if you accidentally get it in the process of the experiment, and you can wash it directly with clean water.