Estimation of m-Phenylene Diamine using sodium nitroprusside by photochemical method
Hardik Bhatt1*, Gayatri Prasad2, Vaibhav Bhatt3 and Ajay Sharma2
Journal Title:Journal of Chemical, Biological and physical sciences
Determination of m-Phenylene Diamine using a newer, faster, inexpensive and convenient quantitative
method by the photochemical exchange reaction of sodium nitroprusside has been investigated. Sodium
nitroprusside is a photolabile complex and it undergoes photochemical ligand exchange reactions rapidly.
Some recent efforts have been made to utilise such reactions for the estimation of some nitrogen
containing anions and electron rich organic molecules. The progress of the reaction is observed
spectrophotometrically. The effects of different parameters like pH, change of concentration of sodium
nitroprusside, concentration of ligands, light intensity etc. on percentage error was investigated. The
efforts were made to minimise the percentage error and some optimum conditions were obtained. Such
reaction can be used for the determination of m-phenylene diamine in the range of millimoles to
micromoles, hence it is important to know whether such estimations can be done successfully and that to
with the desired accuracy.