The Applications of Al- Chrome Azurol S Color Reaction to Assay Mishraq Alum Purity and Fluoride in Tablet | Zendy

Hanan H. Ahmad | Zendy; Farha Khalaf Omar | Zendy

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The Applications of Al- Chrome Azurol S Color Reaction to Assay Mishraq Alum Purity and Fluoride in Tablet

Author(s) -

Hanan H. Ahmad,

Farha Khalaf Omar

Publication year - 2011

Publication title -

mağallaẗ ʻulūm al-rāfidayn

Language(s) - English

Resource type - Journals

eISSN - 2664-2786

pISSN - 1608-9391

DOI - 10.33899/rjs.2011.6530

Subject(s) - alum , fluoride , aluminium , gravimetric analysis , chemistry , colored , nuclear chemistry , mineralogy , inorganic chemistry , materials science , composite material , organic chemistry

In the present research, a spectrophotometric method is suggested as an alternative to the gravimetric method used to find mishraq alum purity. The method is based on the complex formation between aluminium ion and either Chrome Azurol S (CAS) or Eriochrome cyanine R (ECR) to give colored products suitable for the determination of aluminium. The same reaction has been applied to the determination of fluoride in tablet, depending on the bleaching effect of fluoride on the formed aluminium colored complex. Statistical comparison of method has given satisfactory results.

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