Ultraviolet Spectrophotometric Determination of Phthalic Acid. Application to Analysis of Naphthalene Oxidation Products

W. P. Fassinger; C. E. Gonter

doi:10.1021/ac60152a023

Ultraviolet Spectrophotometric Determination of Phthalic Acid. Application to Analysis of Naphthalene Oxidation Products

Analytical Chemistry ◽

10.1021/ac60152a023 ◽

1959 ◽

Vol 31 (8) ◽

pp. 1324-1326 ◽

Cited By ~ 4

Author(s):

W. P. Fassinger ◽

C. E. Gonter

Keyword(s):

Spectrophotometric Determination ◽

Phthalic Acid ◽

Oxidation Products ◽

Naphthalene Oxidation

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Spectrophotometric Determination of Phthalic Acid in Phthalic Anhydride

Analytical Chemistry ◽

10.1021/ac60081a034 ◽

1953 ◽

Vol 25 (9) ◽

pp. 1412-1413 ◽

Cited By ~ 6

Author(s):

M. M. Agarwal ◽

Frank Spagnolo

Keyword(s):

Spectrophotometric Determination ◽

Phthalic Anhydride ◽

Phthalic Acid

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Analytical Applications of Reactions of Iron(III) and Hexacyanoferrate(III) with 2,10-Disubstituted Phenothiazines

International Journal of Analytical Chemistry ◽

10.1155/2009/302696 ◽

2009 ◽

Vol 2009 ◽

pp. 1-8 ◽

Cited By ~ 7

Author(s):

Helena Puzanowska-Tarasiewicz ◽

Joanna Karpińska ◽

Ludmiła Kuźmicka

Keyword(s):

Ternary Compound ◽

Spectrophotometric Determination ◽

Flow Injection ◽

Oxidation Reaction ◽

Oxidation Products ◽

Acidic Media ◽

Complexometric Titration ◽

Analytical Applications

The presented review is devoted to analytical applications of reactions of Fe(III) and with 2,10-disubstituted phenothiazines (PT). It was found that iron(III) and hexacyanoferrate(III) ions in acidic media easily oxidized PT with the formation of colored oxidation products. This property has been exploited for spectrophotometric determination of iron(III) ions and phenothiazines. Some flow-injection procedures of the determination of PT based on the oxidation reaction by means of the above-mentioned oxidants have been proposed. In the presented review, the application of 2,10-disubstituted phenothiazines as indicators in complexometric titration of iron(III) as well as procedures of PT determination based on generation of ternary compound in the system Fe(III)-- PT was also described.

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