Refractive indexes of aqueous lithium bromide solutions

Autor:	Abdolreza Zaltash, Moonis R. Ally
Rok vydání:	1992
Předmět:	chemistry.chemical_compound Aqueous solution Adsorption Chemistry Bromide General Chemical Engineering Inorganic chemistry Gravimetric analysis Halide Titration General Chemistry Electrolyte Atmospheric temperature range
Zdroj:	Journal of Chemical & Engineering Data. 37:110-113
ISSN:	1520-5134 0021-9568
DOI:	10.1021/je00005a029
Popis:	This paper reports that the refractive indexes of water-lithium bromide solutions were measured in the temperature range from 5.0 to 80.0 {degrees}C and in the range of salt concentrations from 0.00 (deionized water) to 58.90 mass %. An electrolyte solution of LlBr in water was chosen for study because of its wide use as an absorption chiller fluid. The concentration of LlBr aqueous solution was determined by argentimetric titration using tetrabromofluoresceln (Eosin) as an adsorption indicator and was checked at a few discrete concentrations (10.06, 20.30, and 58.90 mass % LlBr) against the values obtained by gravimetric analysis. The deviation between values obtained using these two techniques was found to be less than 0.27 mass %. The refractive indexes are shown to represent a reliable and convenient way of measuring the concentration of salt (or water) in LlBr solutions with accuracies of {plus minus}0.3 mass % salt.
Databáze:	OpenAIRE
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