Methods of protection against hazardous chemicals Class VIII corrosives 20

Corrosives are those that cause serious damage to biological tissues when on contact, or that can seriously damage or even destroy other goods or means of delivery when leaked.

of substances. According to the chemical properties, such substances can be divided into: acidic corrosives (such as sulfuric acid, nitric acid.

hydrochloric acid, etc.), alkaline corrosives (e.g., sodium hydroxide.

calcium hydrosulfide, etc.), other corrosive products (such as dichloroacetaldehyde, sodium phenol, etc.). Protection against corrosives can be achieved by using corrosion-resistant containers to contain corrosive products; When working with corrosives, wear appropriate lab coats and protective gloves.

When dealing with corrosive waste liquids, they should not be poured directly into the steel sewer, but should be properly disposed of. Corrosive products should be treated immediately as soon as they corrode** or clothing. If strong acid corrosion**, it should be immediately rinsed with a large amount of water or normal saline for 5-10 minutes, and 1 ammonia can be used for the acid burn site.

or 4 sodium bicarbonate.

solution washing or wet compresses; If strong alkali corrosion**, boric acid can be applied to the affected area, and then rinsed with a small amount of water; For sodium phenol corrosion, if it is **contact, the contaminated clothing should be removed, and immediately rinsed with water** for at least 15 minutes; If it is eye contact, lift the eyelid immediately and rinse with running water or saline for at least 15 minutes; If you eat people, you should rinse your mouth immediately when you are awake, take oral milk, egg whites, vegetable oil, etc., and induce vomiting and seek medical attention.

It is recommended that you look at the United Nations Recommendations on the Transport of Dangerous Goods.

Summary. What are the emergency protection measures for corrosive chemicals?

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1.Passivation: For example, the iron cans that transport concentrated nitric acid are ground into a protective layer, preventing the continuation of the reaction2

Electroplating: such as galvanizing, mainly used for anti-corrosion cleaning of metals and alloysIsolation:

For example, the main principle of accompanying paint is to use a slow-reacting substance in the environment as an isolation layer

Hello dear, when storing corrosive materials, avoid items that are prone to corrosion, pay attention to the tightness of their containers, and maintain ventilation inside the laboratory. Laboratories that produce corrosive volatile gases should have good local ventilation or full room ventilation, and be far away from laboratories with precision instruments and equipment. Laboratories for the use of corrosive substances should be located on the upper floors to allow corrosive volatile gases.

Containers containing corrosive substances must be made of corrosion-resistant materials. For example, you can't use iron containers to store acid, glassware to store concentrated lye, etc. When using corrosive substances, be careful and strictly press.

Acid and alkali waste liquid cannot be directly poured into the sewer, and can only be discharged after treatment to meet safety standards. Pipes and valves through which corrosive gases and liquids flow should be inspected and replaced frequently. Wear personal protective equipment when handling and using corrosive materials.

If you accidentally splash acid or alkali on ** or clothing, you can rinse with plenty of water. If my answer is helpful to you, please give a thumbs up (in the lower left corner), I look forward to your like, your efforts are very important to me, and your support is also the motivation for my progress. Finally, I wish you good health and a good mood!

Hazardous chemical storage tank farms in contact with corrosive and other toxic and harmful places, He Tsai should be set up (() device.

Communication. Firefighting.

Emergency shower (correct answer).

Alarm. Answer Analysis:

Article 1 of the General Rules for the Safety of Hazardous Chemicals Storage Tank Farm Operations (AQ3018-2008) shall be set up in places that come into contact with corrosive and other toxic and harmful dusts, and shall be equipped with emergency shower loading and scattering.