What are some examples of chemical abuse polluting the environment?

Using acid-containing chemical elements will pollute the environment and produce nitrate rain, while using coal will produce sulfuric acid rain. Leakage from pesticide production plants will cause public hazards, while leakage from chemical plants will mostly cause air pollution. If radioactive elements are leaked, cancer will occur collectively. Among radioactive gases, radon is the most powerful, and many people have high fat affinity, which will produce a variety of cancers when inhaled.

Precautions for the use of some chemical reagents: (1) acetone and anhydrous ethanol.

All of them are flammable, and their vapor and air can form an explosive mixture, which can cause combustion and explosion when exposed to open fire and high heat. When using it, you can't use an electric stove to heat it, and you can't shake the container (take myself as an example to warn). If contact with eyes, rinse with water. Eat by mistake, drink enough warm water, induce vomiting, and seek medical attention. In case of fire, it is necessary to use soluble foam dry powder, carbon dioxide and sand to put out the fire.

(2) sulfuric acid

It is a strong acid and oxidant, which has a severe effect on organic matter, corrosiveness and toxicity, and has a strong stimulation and burning effect on skin, mucosa, eyes and respiratory organs.

In our cleaning process, sulfuric acid and hydrogen peroxide are used to prepare cleaning solution almost every day. These two substances have a strong reaction (boiling), so we must pay attention to personal protection and laboratory safety when using them.

In addition, sulfuric acid and potassium dichromate (both strong oxidants) should be used to prepare lotion (for beakers and drop bottles, etc.). ). When sulfuric acid is poured into potassium dichromate solution, the reaction is very strong and dangerous, so be careful when preparing it. Keep away from open flames and heat sources, have good ventilation, wear protective aprons, cuffs and eye masks, and take necessary protective measures, which the company shall guarantee.

If the acid spills on the skin, it should be washed with dilute lye (or soap). When diluting, never pour water into sulfuric acid (water has a smaller specific gravity than sulfuric acid and is easy to overflow), but slowly pour sulfuric acid into water. In case of an accident, you must keep calm.