Ortho‐tolidine Titration Procedure for Measuring Chlorine Residuals

Connell, C. H.

doi:10.1002/j.1551-8833.1947.tb20513.x

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Ohlorination Test Methods1

Effects Of the O-tolidine Concentration1

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1948

2024

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Cited by 7 publications

(2 citation statements)

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“…Connell (24) has published a simple ortho-tolidine titration procedure for measuring free available chlorine residuals.…”

Section: Ohlorination Test Methodsmentioning

confidence: 99%

Developments in Water Chlorination Practice During 1947

Faber¹

1948

Journal AWWA

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“…Connell (24) has published a simple ortho-tolidine titration procedure for measuring free available chlorine residuals.…”

Section: Ohlorination Test Methodsmentioning

confidence: 99%

Developments in Water Chlorination Practice During 1947

Faber¹

1948

Journal AWWA

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“…4. The yellow compound turned red at a low concentration of otolidine.la, 15 The reaction was as follows:…”

Section: Effects Of the O-tolidine Concentrationmentioning

confidence: 99%

Spectrophotometric Determination of the Average Valence of Bismuth in a High-Tc Superconductor with o-Tolidine

et al. 1997

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A determination was made of the average valence of bismuth in the Bi-Sr-Ca-Cu-O superconductor using the o-tolidine spectrophotometric method to lessen the amount of sample required. The chlorine liberated by a reaction between Bi(V) and hydrochloric acid was stoichiometrically equivalent to Bi(V) in the sample. Bi(V) was determined over the range of 0.01-0.10 mg based on the absorbance observed with the oxidant of o-tolidine. The total bismuth was determined by spectrophotometry after the extraction of Bi(III) with Zephiramine and iodide ions into chloroform. By a Bi(V) determination with o-tolidine, the amount of consumed sample could be decreased down 0.5 mg. Although Cu(III) did not hinder the determination of Bi(V), Pb(IV) did. In the 2212 Bi-Sr-Ca-Cu-O sample having a high T~ of 90 K, the average valences of bismuth was confirmed to be from 3.12 to 3.17.

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Determination of Chlorine Residuals in Water and Wastewater Treatment

2009

White's Handbook of Chlorination and Alternative Disinfectants

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Ortho‐tolidine Titration Procedure for Measuring Chlorine Residuals

Cited by 7 publications

References 5 publications

Developments in Water Chlorination Practice During 1947

Developments in Water Chlorination Practice During 1947

Spectrophotometric Determination of the Average Valence of Bismuth in a High-Tc Superconductor with o-Tolidine

Determination of Chlorine Residuals in Water and Wastewater Treatment

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