Chemical based corrosion inhibitors are effective in preventing corrosion however they pose significant risks to the environment. In the field of corrosion science, plant extracts and their byproducts have demonstrated considerable promise as inhibitors for protecting metals and alloys from degradation in aggressive environments. Aswag and haroot extract was used as a natural corrosion inhibitor for copper metal in acidic and ammoniacal medium. Inhibition effect of root extract of Withaniasomnifera on copper has been studied using weight loss method at temperature range 303K to 343K. Result reveal that inhibition efficiency increases with increasing concentration of Withaniasomniferaroot extract from 100ppm to 700ppm. Effect of temperature on inhibition efficiency has also been shown. Thermodynamic parameters have also been reported. The adsorption of root extract obeyed Langmuir Adsorption Isotherm. Spectral Data have been discussed.
