- N,N-Bis(2-Hydroxyethyl)taurine: Synthesis, Structure, and Stability of the Complexes with Cobalt(II) and Nickel(II)
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Abstract: The complex formation of N,N-bis(2-hydroxyethyl)taurine with cobalt(II) and nickel(II) ions is studied. The acidic ionization constant of the ligand is determined by the potentiometric method. The stability constants of the complexes with the me
- Zemlyakova,Pestov,Slepukhin,Kapitanova,Petrova, Yu. S.,Neudachina
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- A biological buffer preparation method
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The invention discloses a preparation method for a biological buffer agent which has a general reaction formula shown in the description. In the general reaction formula, n is equal to 1, 2, 3, or 4, and M is K or Na. The synthesis process of the biological buffer agent has the main advantages of being low in solvent consumption, little in sewage, high in reaction efficiency, and easy for industrialization; in the synthesis process, raw materials are simple and easy to obtain; compared with the conventional preparation method that diethanol amine and butene sodium sulfonate or chloroethanesulfonic acid are taken as raw materials for reaction, the preparation method provided by the invention achieves a breakthrough in the synthesis process, that is, a compound III is obtained through reaction between ethylene epoxide and sulfamate, so that the reaction yield and efficiency are greatly improved, and the problem of low reaction yield and efficiency in the prior art is solved.
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Paragraph 0017-0026
(2017/08/02)
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