Micro determination study and organo physical properties of resorcinol with thiamine in the presence of potassium dichromate

Abstract EN

Objective : This study aims to estimate Resorcinol (3- hydroxy phenol).

Methodology : The study was through the development of a simple and high sensitivity and selectivity to estimate Resorcinol (3- hydroxy phenol) and The method is based on the reaction of Resorcinol (3- hydroxyphenol) with Thiamine (Vitamin B1) and potassium Dichromate at pH 3.5.

So the reactions gave an intense water soluble color products that have maximum absorption at 510 nm.

Results : This study showed that the ε max for 3- hydroxy phenol is (0.145 Χ 104 liter.

Mol-1.cm-1), a linear correlations (1-9 μg ml-1) for 3-hydroxyphenol compound was found between absorbance at λmax and concentration.

The accurate (relative error was better than -0.2 %) and precise (RSD was better than 1.2 %).

The colored product was found to be 1 : 1 (3-hydroxyphenol : Thiamine) .

The stability constant of the reaction under optimized conditions at room temperature was 3.25 Χ 105 L.mole-1 .

Recommendations : The study recommends the appointment of phenolic compounds or other phenolic derivatives are relying on this method any use of thiamine and oxidized worker himself (potassium dichromate).