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6627-34-5

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Construction of interconnected acidity functions based on ortho substituted anilines and N-methylanilines as indicators
The log I values of 15 mainly ortho substituted derivatives of aniline and N-methylaniline have been measured spectrophotometrically in sulfuric, perchloric, and methanesulfonic acids. A new algorithm has been suggested for construction of acidity functions enabling simultaneous and independent construction of acidity functions in various media under the condition of equal values of pKa of the same indicators in the given media. The so-called interconnected acidity functions have been constructed with using this algorithm and the log I values measured in the above media, and the pKa values have been calculated. The resulting acidity functions and pKa values agree well with the corresponding literature data.
Pytela, Oldrich,Kulhanek, Jiri,Jiraskova, Eva,Nevecna, Tatjana
p. 1638 - 1658
(2007/10/03)

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Chemical Properties

Appearance/Colour :yellow powder
Melting Point: 150-155 ºC
Boiling Point: 361.1°C at 760 mmHg
Flash Point:172.2°C
Density: 1.624g/cm³
Storage Temp.:Keep in dark place,Inert atmosphere,Room temperature
Vapor Pressure: 2.12E-05mmHg at 25°C
Refractive Index: 1.6100 (estimate)
PKA: pK1:-1.74(+1) (25°C)
BRN: 2211952
PSA: 71.84000
LogP: 3.58820

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