UTILIZATION OF USED-UP CONSUMER PRODUCT PAPERCLIPS, ELECTRICAL WIRE FITTING CLIPS AND DISPOSABLE NEEDLES OF INJECTION SYRINGE FOR DEVELOPING NEW EXPERIMENT

In the present article are analyzed some very common consumer products as paperclips, electrical wire fitting clips and disposable needles of injection syringe. This analysis is chosen because, these articles are not rusting easily or rapidly although their major constituent is iron. Gravimetric method is used for analysis of iron, whereas volumetric method is used for determination of chromium. The spectrophotometric method is tried for estimating nickel. This analysis is of interest as it is done for knowing whether these articles are made up of stainless steel or a similar material as that of razor blades, and whether and how much do they contain chromium and nickel along with iron. To design an experiment for iron content one can use paperclips or electrical fitting pins. For estimating iron and chromium a needle of injection syringe can be used. Being usedup or low-cost these may be useful as samples for analysis. The student may later think about the relationship between the properties and composition of the material also. This is an attempt for designing an experiment for analytical chemistry which may be necessarily incorporated in the practical curriculum for post graduate students of chemistry