Photometric titration of phenols

McKinney, R. W.

doi:10.1016/0039-9140(58)80007-7

Cited by 15 publications

(5 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…istics of photometric titration commend it for use in the determination of small amounts of weak acids and weak acid mixtures, relatively little work seems to have been done on this application. Goddu and Hume (8,9) investigated the method in aqueous medium, a,nd recently, McKinney and Reynolds (14) titrated phenolic compounds photometrically in butylamine using ethanolic sodium hydroxide as a titrant. Although an excellent titration medium for very weak acids, the widespread use of butylamine as a solvent is deterred by its unpleasant odor.…”

mentioning

confidence: 99%

Photometric titration of weak acids in nonaqueous media.Determination of phenols in isopropyl alcohol

Hummelstedt¹,

Hume²

1960

Anal. Chem.

View full text Add to dashboard Cite

k~ Photometric titrations of 16 weak acids, mainly phenols, were performed in commercial isopropyl alcohol using tetra-n-butylammonium hydroxide in isopropyl alcohol as titrant. In favorable cases, up to four components in a mixture were resolved if a suitable change in wave length setting was made during the titration. Nonlinear phoiometric titration curves for phenols provide new evidence for complex formation between phenols and phenolate ions.

show abstract

mentioning

confidence: 99%

Photometric titration of weak acids in nonaqueous media.Determination of phenols in isopropyl alcohol

Hummelstedt¹,

Hume²

1960

Anal. Chem.

View full text Add to dashboard Cite

show abstract

“…Weighed samples of amine were dissolved in 100 ml. of dry pyridine which was saturated with dry hydrogen chloride, and the titration was performed using the 0.00IM acetic anhydride solution according to procedures published previously (6).…”

Section: Methodsmentioning

confidence: 99%

Photometric Titration of Aromatic Amines

Reynolds¹,

Walker²,

Cochran³

1960

Anal. Chem.

View full text Add to dashboard Cite

“…Dry nitrogen was passed through the cell compartment continuously during each titration. A more detailed photometric titration procedure has been described in an earlier paper (5).…”

Section: • Analytical Chemistrymentioning

confidence: 99%

Spectrophotometric Titration of Primary Aliphatic Amines.

Post¹,

Reynolds²

1962

Anal. Chem.

View full text Add to dashboard Cite

evidence is presented to substantiate the olefin and aromatic calibration data on the basis that wide changes in composition do not cause appreciable differences between results from two different sources.Comparisons of saturate percentages are also made in Table VI. There is a significant discrepancy in the four higher boiling fractions. This may be caused by the influence of dicycloparaffins on the percentage of naphthenes by refractivitv intercept.Table VII shows aromatic and olefin data for a variety of commercial motor fuels. The close agreement indicates that a good approximation of the right compound distribution was achieved.The composition of the commercial fuels was largely unknown but was assumed to be mostly catalytically cracked material. Since ASTM Method D1019 was used to relate total saturated and unsaturated hydrocarbons as percentages of the stabilized original, the precision of the distribution between these two types is dependent on the precision of D1019. Although this is 2% or better (3) the MS does provide compari-son data from the peak height ratios.

show abstract

Photometric titration of phenols

Cited by 15 publications

References 5 publications

Photometric titration of weak acids in nonaqueous media.Determination of phenols in isopropyl alcohol

Photometric titration of weak acids in nonaqueous media.Determination of phenols in isopropyl alcohol

Photometric Titration of Aromatic Amines

Spectrophotometric Titration of Primary Aliphatic Amines.

Contact Info

Product

Resources

About