The tannery industry involves the processing and treatment of animal hides and skins to produce leather. The chemical compound called tannin was used to process the skins to produce leather. Tannin was derived from the bark of specific trees.
Vegetable tanning is environmental friendly practice but takes more time it uses environmental friendly chemicals
Urban heat island is due to heat reflection from solar panels and building walls; heat is retains on building material and results in increase in heat, and this also effects Temperature of Karachi city
Crude triglyceride oils and fats from a wide range of vegetable or animal sources undergo a refining process in order to remove contaminants which may negatively impact the appearance, taste or stability of the final product.
Measures the total amount of acid compounds present in petrochemical samples, expressed in mg of KOH per g of sample.
Photovoltaic cells are made from a semiconductor material, usually silicon, and are designed to release electrons when exposed to sunlight. When sunlight hits a photovoltaic cell, it excites the electrons, causing them to flow through the material and create an electrical current.
