cas 76-59-5, Bromothymol Blue | Articles data

A detailed kinetic analysis is presented of the transient sultone (A2) formation which proceeds thermally from a photogenerated intermediate species after flash excitation of bromo thymol blue and bromo xylenol blue in the presence of quinoline, pyridine and 4-methyl pyridine in toluene solution.The sultone ring cleavage is a biomolecular reaction with the base resulting in a hydrogen-bridged molecular complex (A1) which equilibrates consecutively with the most stable rotamer of the ion pair (A3).The rate constants for the latter reaction are controlled essentially by conformational changes rather than by the proper proton transfer.

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Chemical Properties

Appearance/Colour :Pale purple crystalline powder

Melting Point: 204 °C

Boiling Point: 614.3 °C at 760 mmHg

Flash Point:325.3 °C

Density: 1.542 g/cm³

Solubility:Solubility Sparingly soluble in water, benzene; soluble in ethan

Storage Temp.:Store at RT.

Vapor Pressure: 5.5E-17mmHg at 25°C

Refractive Index: 1.634

PKA: 7.0, 7.1(at 25℃)

Merck: 14,1445

BRN: 373934

PSA: 92.21000

LogP: 8.57800

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76-59-5

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Chemical Properties

Appearance/Colour :Pale purple crystalline powder

Melting Point: 204 °C

Boiling Point: 614.3 °C at 760 mmHg

Flash Point:325.3 °C

Density: 1.542 g/cm3

Solubility:Solubility Sparingly soluble in water, benzene; soluble in ethan

Storage Temp.:Store at RT.

Vapor Pressure: 5.5E-17mmHg at 25°C

Refractive Index: 1.634

PKA: 7.0, 7.1(at 25℃)

Merck: 14,1445

BRN: 373934

PSA: 92.21000

LogP: 8.57800

Global suppliers and manufacturers of 76-59-5total 153 suppliers on LookChem

Density: 1.542 g/cm³