SODIUM CHELATES OF ETHYLENEDIAMINETETRAACETIC ACID | Zendy

Vladimír Palatý | Zendy

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SODIUM CHELATES OF ETHYLENEDIAMINETETRAACETIC ACID

Author(s) -

Vladimír Palatý

Publication year - 1963

Publication title -

canadian journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.323

H-Index - 68

eISSN - 1480-3291

pISSN - 0008-4042

DOI - 10.1139/v63-004

Subject(s) - chemistry , ethylenediaminetetraacetic acid , chelation , sodium , inorganic chemistry , stability constants of complexes , glass electrode , electrode , electrochemistry , organic chemistry , ion , reference electrode

The stability constant of the sodium chelate of EDTA was determined by means of a sodium-sensitive glass electrode. It appears that a hydrogen chelate of the formula NaHY 2− is formed in the neutral solution of EDTA, but is very unstable. The stability constants, pK NaY = −2.61 and pK NaHY = 0.03, are comparable to the value obtained by Schwarzenbach and Ackermann under different experimental conditions by a less sensitive method.

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