What are the main types of injuries in chemical laboratories?

The main types of injuries in chemical laboratories are: fire, explosion, poisoning, burns, electric shock, etc.

1. chemical hazards: chemical hazards can be divided into six categories: flammability, instability, reactivity, corrosiveness, toxicity and radioactivity. Chemical hazards refer to immediate injuries or long-term lesions inside and outside the human body caused by fire, explosion, toxicity or corrosiveness of chemical substances or chemical processes.

During the experiment, the experimenter is not familiar with the drug and container, which leads to improper operation in the preparation process and aggravates the reaction and is uncontrollable. In most chemical synthesis experiments, there will be violent reactions between drugs, such as strong corrosive drugs or strong alkali and strong acid reagents, which are easy to overflow and corrode human skin and even organs; The strong corrosiveness of drugs can easily lead to aging and failure of containers, leakage of dangerous goods, and damage to personal safety and the environment.

When chemicals can't be completely sealed, gases contact and react with each other and reach a certain ignition point, which is easy to cause fire or explosion. Therefore, chemical hazards are one of the problems that cannot be ignored in various laboratories. ?

2. Physical hazards: bad weather, such as floods, lightning and other natural disasters, causes chemical leakage and chemical reactions, and the laboratory itself has poor conditions and small space, which makes it impossible to effectively divide safe areas.

Direct injuries caused by general instruments, equipment, electric energy or high-pressure gas cylinders, and injuries caused by noise and harmful light generated by instruments and equipment. There are many potential dangers in the laboratory, such as knives, cutting tools, falls, back injuries and electrical injuries caused by poor instruments and equipment. Therefore, before the experimental operation, it is necessary to understand the operating instructions of various instruments to avoid physical injury caused by improper operation.

3. Biological hazards: Biological hazards are often caused by microorganisms, viruses, germs and even insects in biochemical laboratories or water quality inspection.

Chemical laboratories in schools and enterprises have formulated detailed safety guidelines. Although there are many harmful factors in the chemical laboratory, the chemical laboratory will be safer if the corresponding safety protection measures are taken and the laboratory personnel (students) have basic safety knowledge and correct operation methods.