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Research Journal of Pharmacy and Technology
Year : 2019, Volume : 12, Issue : 10
First page : ( 4607) Last page : ( 4612)
Print ISSN : 0974-3618. Online ISSN : 0974-360X.
Article DOI : 10.5958/0974-360X.2019.00792.3

Spectrophotometric determination of Chroumium (III) with (Chromazurol S)

Hashem Husham Fathel1,*, Arif Iman Essam2, Dr. Hussein Alaa Frak3

1Directorate General of Education, Karbala, Iraq

2University of Karbala, Production Engineering and Metallurgy, Iraq

3Prof. University of Karbala, College of Dentistry, Iraq

*Corresponding Author E-mail: hushamfadhel1970@gmail.com

Online published on 24 December, 2019.


Chromazurol S reagent from violet complex with chromium (III) in wave length (550 nm). The complex was found to be stable for at least 2 hour the given pH. Beers, law is obeyed in the concentration range (1.923×10−52.693×10−5 M) with molar absorptivity of (1.233×104 L.mol−1. Cm−1). The stoichiometry of complex was confirmed by using mole ratio and molar method which indicated the ratio of reagent to metal is (3:1). Measuring conductivity at room temperature the ionic character of the complex. Has been appointed the melting point of the complex and found that the degree of melting is (231–233C). The study of several factors, including the interactions resulting from the presence of positive or negative ions effect, masking agents, reagent concentration, reaction time sequence of additions.



Chromazurol S reagent, stoichiometry.


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