Solubility of 2,6-diaminopyridine in toluene, o-xylene, ethylbenzene, methanol, ethanol, 2-propanol, and sodium hydroxide solutions | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

1142056

Reference Type

Journal Article

Title

Solubility of 2,6-diaminopyridine in toluene, o-xylene, ethylbenzene, methanol, ethanol, 2-propanol, and sodium hydroxide solutions

Author(s)

Chen, XH; Zeng, ZX; Xue, WL; Pu, T

Year

2007

Is Peer Reviewed?

Yes

Journal

Journal of Chemical and Engineering Data
ISSN: 0021-9568
EISSN: 1520-5134

Volume

Issue

Page Numbers

1911-1915

Language

English

DOI

10.1021/je700221w

Web of Science Id

WOS:000249501400066

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-34948864532&doi=10.1021%2fje700221w&partnerID=40&md5=406e53b2ff582f24d6100831f4a3c72c
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Abstract

Solubilities are reported for 2,6-diaminopyridine dissolved at atmospheric pressure in toluene, o-xylene, and ethylbenzene from (273.25 to 361.25) K, methanol, ethanol, and 2-propanol between (266.15 and 321.25) K, and sodium hydroxide solution containing mass fraction of 0.000 % to 17.308 % sodium hydroxide over the temperature range of (273.55 to 326.35) K. Results of these measurements are fitted with the combined binary solvent Margules equation. For the systems studied, the Margules equation is found to provide very reasonable mathematical representation, with average deviations between experimental values and calculated ones being on the order of +/- 2.2 % or less. The coupler parameters of the Margules equation (A(21), A(12)) and the enthalpy of fusion (Delta H-fus) of 2,6-diaminopyridine in different systems are obtained by regressing the experimental data.