Top Ten Poisons

In: Science

Submitted By mesaxon2014
Words 5039
Pages 21

Section 2-D
|Roña, Diandra Krystle B. |
|Rosales, Aileen L. |
|Rosaura, Franz D. |
|Roxas, Marie Florence S. |
|Rubio, Hannah Alexis O. |
|Rugay, Jesus Emmanuel R. |

February 1, 2012


Poisons are substances that cause disturbances in living organisms and do so by some biologic or chemical reaction in nature. For decades, the use of different substances for various applications lead to the discovery of potential toxic substances that may have caused injurious effects. Poisoning commonly occurs thru ingestion and usually, it was unintentional. Acute toxicity is the single exposure or multiple exposures for short periods to the substance causing the injury. Symptoms may be rapid and are in close relation to the toxic agent. On the other hand, chronic toxicity are caused by repeated or multiple exposure for longer periods to the poison. Signs and symptoms of chronic toxicity may appear even after several years upon the initial exposure.



Caustics are strong acids and alkali that when ingested can cause tissue injury by chemical reaction. They damage the tissues by accepting a proton (alkaline substance) or donating an proton (acidic substance) in an aqueous solution. In aqueous solutions, the hydrogen ion (H+) produces the principle toxic effects for the majority of acids, whereas the hydroxide ion (OH-) produces such effects for alkaline substances. Hydrochloric acids, sodium hypochlorite and sodium hydroxide are just a few of the more common substances that cause the injury due to…...

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