Naturally occurring compounds of industrial importance

  se paration of Benzene from Air using Compression Benzene is an organic chemical compound with the molecular formula C 6 H 6 .  The benzene molecule is composed of six carbon atoms joined in a planar ring with one hydrogen atom attached to each. Because it contains only carbon and hydrogen atoms, benzene is classed as a hydrocarbon . Benzene is a natural constituent of crude oil and is one of the elementary petrochemicals . Benzene is a colorless and highly flammable liquid with a sweet smell, and is partially responsible for the aroma around petrol (gasoline) stations.  It is used primarily as a precursor to the manufacture of chemicals with more complex structure, such as ethylbenzene and cumene , of which billions of kilograms are produced annually. Although a major industrial chemical , benzene finds limited use in consumer items because of its toxicity. Popular Uses of Benzene As a solvent As an Intermediate / Production of rubber As fuel Printing Indus...

  Fluid Mechanics in Everyday Life Bernoulli's Principle in Action As fluid moves from a wider pipe to a narrower one, the volume of the fluid that moves a given distance in a given time period does not change. But since the width of the narrower pipe is smaller, the fluid must move faster (that is, with greater dynamic pressure) in order to move the same amount of fluid the same distance in the same amount of time. Observe the behavior of a river: in a wide, unconstricted region, it flows slowly, but if its flow is narrowed by canyon walls, it speeds up dramatically. Bernoulli's principle ultimately became the basis for the airfoil, the design of an airplane's wing when seen from the end. An airfoil is shaped like an asymmetrical teardrop laid on its side, with the "fat" end toward the airflow. As air hits the front of the airfoil, the airstream divides, part of it passing over the wing and part passing under. The upper surface of the airfoil is curved, however, ...

Naturally occurring compounds of industrial importance 1. Introduction In nature there are many natural compounds. From among many classes of naturally occurring organic compounds such as carbohydrates, lipids, proteins, amino acids, anthocyanins, flavonoids, and steroids, the one that seems to be quite special is alkaloids. What makes them special? They are derived from amino acids and can be synthesized as secondary metabolites by plants and some animals. These compounds play an important role in living organisms. Alkaloids have been extremely important for human beings for ages, besides they are secondary metabolites, which could suggest that they are useless. Alkaloids showed strong biological effects on animal and human organisms in very small doses. Alkaloids are present not only in human daily life in food and drinks but also as stimulant drugs. They showed anti-inflammatory, anticancer, analgesics, local anesthetic and pain relief, neuro pharmacologic, antimicrobial, antifungal...