Composting provides a way not only of reducing the amount of waste that needs to be disposed of, but also of converting it into a product that is useful for gardening, landscaping, or house plants.
Q. I want to know the uses and composition of Pickling Inhibitor used in the pre-galvanising process of cold rolled steel. A. Hello, Ishaq. Hydrochloric acid is used to remove rust and scale from steel. But hydrochloric acid will also attack and dissolve the steel itself. Pickling inhibitors are interfacially active compounds which bind to the steel as monomolecular layers, and shield it, reducing the attack on the steel.
The inhibitor, however, has a functional group, ususally a leaving group, that is replaced by a nucleophile in the enzyme active site. This covalent enzyme-inhibitor complex forms irreversibly, thereby irreversibly inactivating the enzyme. Therefore this type of inhibition is called suicide inhibition or affinity labeling and the inhibitor is called a suicide inhibitor. This reaction with the suicide inhibitor removes active enzyme from the system; this removal is measured as inhibition. Since active enzyme is lost, the inhibition is not relieved at high substrate levels.