Zahida Khalid

Kinetics of Methylene Green and Ascorbic Acid Reaction in Aqueous 2-propanol at Different Temperatures

Zahida Khalid, Rehana Saeed, Fahim Uddin & Maria Ashfaq · Chemical Science International Journal · 2014

The kinetics of reaction of methylene green with ascorbic acid was carried out spectrophotometrically in mixed solvent system by using aqueous 2- propanol ratios as a solvent in the presence of hydrochloric acid. The pseudo-first order rate constants were proposed on the basis of...

Open access Research Article 10.9734/ACSJ/2014/7136

Reduction Kinetics of 3,7-bis (dimethylamino)-4-nitro-phenothiazine-5-ium Chloride (Methyelene Green) with Potassium Persufate in Presence of Halides

Rehana Saeed, Fahim Uddin, Maria Ashfaq, Muna Irfan & Zahida Khalid · International Research Journal of Pure and Applied Chemistry · 2013

The effect of ionic strength and temperature on the kinetics of reaction between 3, 7 bis (dimethyl amino) - 4- nitro-phenothiazine-5-ium chloride (methylene green) and persulfate ions in presence of potassium iodide and potassium bromide was studied by spectrophotometric method....

Open access Research Article 10.9734/IRJPAC/2014/6649