Sabtu, 21 Januari 2012

Align the perception IN THE COMMUNITY ON CHEMICALS
Did have think by us whether it's chemicals? What are all dangerous chemicals? Where we can found these chemicals?Above questions are sometimes ejected by many people, but it is very unfortunate occurrence of any perception or any allegation that, arising statement that all hazardous chemical substances.Even if a product is marketed to be in demand by consumers is labeled "Free from chemical substances" or "without chemicals".Well...! Is it true that all chemicals are dangerous? The answer is "NO". Keep in mind, understanding the chemical is a chemical element which element it can not be subdivided into smaller substances, or can not be converted into other chemical substances by ordinary chemical methods. While the smallest of the constituent elements are atoms.Well, now where is all that harmful chemicals? Based on the above understanding. The water that we use everyday, is also a chemical called H2O, while the air we breathe is also an O2 chemicals and salt used for cooking is a chemical NaCl.Everything in this earth is a chemical, a chemical element, and contains its constituent atoms.If the so-called harmful chemicals, it's wrong. But what causes some dangerous chemicals? The answer, is depending on the nature of its constituent elements. The definition of a hazardous nature of the elements, when the substance can be carcinogenic (cancer causing substance) or the substance is toxic (poisonous) to sentient beings.One example, still remember the murder of human rights activist Munir was poisoned his food while on the plane. Toxins that kill Munir is toxic because it contains elements of As2O3 arsenic compounds capable of inhibiting the production of ATP, a source of energy for living cells, through various mechanisms. In the Krebs cycle enzyme pyruvate dehydrogenase inhibits arsenic, so that ATP synthesis is reduced and instead increase the production of hydrogen peroxide. Hydrogen peroxide is an oxidizing highly reactive to living cells, then the fact that living cells are attacked. Cells that are attacked arsenic will experience necrosis and death immediately.But, keep in mind not all the same compound containing arsenic is poisonous. Arsenic in everyday life (outside of the poison-poison) materials used for pesticides in fruits. Gallium arsenic semiconductor materials can be used as an electrical circuit. In medicine, arsenic also have a special place. In ancient times even once used arsenic as a cure syphilis, namely Salvarsan.



By : Sherli Hermanita (0910412026)

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