Calorimetric investigation of adsorption of an aqueous metachromic dye (crystal-violet) on montmorillonite

Loren G. Hepler; Shmuel Yariv; Celina Dobrogowska

doi:10.1016/0040-6031(87)80187-9

Calorimetric investigation of adsorption of an aqueous metachromic dye (crystal-violet) on montmorillonite

Loren G. Hepler^*, Shmuel Yariv, Celina Dobrogowska

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Crystal-violet is a cationic dye that exhibits metachromasy in aqueous solutions and when adsorbed on various solids; the changes in the absorption spectrum of the dye permit identification of monomeric, dimeric, and polymeric species and can also help in distinguishing between several different kinds of dye-adsorbent interactions. This paper reports the results of calorimetric measurements of enthalpies of adsorption of aqueous crystal-violet on to eight different cationic (Li⁺ K⁺, Cs⁺, Mg²⁺ Ca²⁺ Ba²⁺ Cd²⁺ and Al³⁺) montmorillonite clays.

Original language	English
Pages (from-to)	373-379
Number of pages	7
Journal	Thermochimica Acta
Volume	121
Issue number	C
DOIs	https://doi.org/10.1016/0040-6031(87)80187-9
State	Published - 20 Nov 1987
Externally published	Yes

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title = "Calorimetric investigation of adsorption of an aqueous metachromic dye (crystal-violet) on montmorillonite",

abstract = "Crystal-violet is a cationic dye that exhibits metachromasy in aqueous solutions and when adsorbed on various solids; the changes in the absorption spectrum of the dye permit identification of monomeric, dimeric, and polymeric species and can also help in distinguishing between several different kinds of dye-adsorbent interactions. This paper reports the results of calorimetric measurements of enthalpies of adsorption of aqueous crystal-violet on to eight different cationic (Li+ K+, Cs+, Mg2+ Ca2+ Ba2+ Cd2+ and Al3+) montmorillonite clays.",

author = "Hepler, {Loren G.} and Shmuel Yariv and Celina Dobrogowska",

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AU - Yariv, Shmuel

AU - Dobrogowska, Celina

PY - 1987/11/20

Y1 - 1987/11/20

N2 - Crystal-violet is a cationic dye that exhibits metachromasy in aqueous solutions and when adsorbed on various solids; the changes in the absorption spectrum of the dye permit identification of monomeric, dimeric, and polymeric species and can also help in distinguishing between several different kinds of dye-adsorbent interactions. This paper reports the results of calorimetric measurements of enthalpies of adsorption of aqueous crystal-violet on to eight different cationic (Li+ K+, Cs+, Mg2+ Ca2+ Ba2+ Cd2+ and Al3+) montmorillonite clays.

AB - Crystal-violet is a cationic dye that exhibits metachromasy in aqueous solutions and when adsorbed on various solids; the changes in the absorption spectrum of the dye permit identification of monomeric, dimeric, and polymeric species and can also help in distinguishing between several different kinds of dye-adsorbent interactions. This paper reports the results of calorimetric measurements of enthalpies of adsorption of aqueous crystal-violet on to eight different cationic (Li+ K+, Cs+, Mg2+ Ca2+ Ba2+ Cd2+ and Al3+) montmorillonite clays.

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ER -

Calorimetric investigation of adsorption of an aqueous metachromic dye (crystal-violet) on montmorillonite

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