Information:

At about 11:10 am on May 3, 2022, a medicine in the secondary and tertiary industry base of Renhe Town, Shunyi District, Beijing Technology Co., Ltd. 3rd FloorLab Fire, overheated area9 square meters, the open fire at the scene has been extinguished. A total of 4 experimental staff were injured, two of them were slightly injured, and the other two were seriously injured and have been sent to Shunyi District Hospital The cause of the fire is under further investigation.

                                                                                               2022.5.3

After the accident, netizens had a heated discussion:

Any hidden danger in the laboratory, any small negligence, may lead to a major accident.

On April 20, an accident occurred in a laboratory in a university in Hunan, resulting in 1 doctoral student suffered extensive burns in the accident!

According to the medical records of the emergency department reported on the Internet, the doctoral student involved suffered multiple burns and pain in multiple parts of the body due to the experimental accident caused by the aluminum powder, and the trachea ruptured with active bleeding.

Laboratory safety accidents occur frequently, which not only causes the decline of talents, but also brings certain concerns to the development of scientific research work. What are the safety hazards in the laboratory? How can we avoid accidents?

01. Corrosion and Burning Accidents

Strong alkali, strong acid and some strong corrosive substances react violently with water or other chemical substances, most of which will produce strong corrosive fumes, and inhalation of dust and fumes will cause serious damage to the human respiratory system.

At the same time, strong alkalis, strong acids and some toxic agents will also cause local loss of the human body when they come into contact with the skin or exposed local organs. Burns are the most common accident during chemical experiments.

02.Fire and explosion incidents

Most of the chemical substances are flammable, and they are very easy to catch fire and burn when encountering a fire source, causing fire danger or fire accident. Organic solvents are usually highly volatile, and the volatilized vapor can drift to a long distance. If it comes into contact with a fire source, it will burn and explode and backfire the solvent.

03. Poisoning accident

Almost all chemicals used in chemical laboratories have certain toxicity, and a little carelessness may cause poisoning accidents.

Poisoning can be divided into two categories: Chronic and acute. Chronic poisoning is not easy to pay attention to. Many symptoms will appear after the poisoning has accumulated to a certain level, usually for a few days or a few months. , and some even years later.

Lab Fire Safety:

A certain number of fire-fighting equipment must be stored in the laboratory, which must be managed by a designated person and regularly inspected and replaced as required;

All flammable and explosive items stored in the laboratory must be kept at a safe distance from fire sources and power sources, and fireworks are strictly prohibited;

Do not connect or pull wires indiscriminately, and do not overload electricity; Do not stack items in the power switch box;

Electrical equipment, lines, plugs and sockets should be checked frequently and kept in good condition. Electric heaters, electric ovens and other equipment should be disconnected from electricity;

In the laboratory without approval and filing, high-power electrical equipment shall not be used, so as not to exceed the electrical load;

It is strictly forbidden to stack items in the corridors of the building to ensure that the fire passage is unobstructed;

Chemicals used in laboratories of all levels and types must be purchased by the drug administrator, and no laboratory or individual may purchase it privately;

Chemicals should be stored in different categories, and interacting drugs should not be mixed and must be stored in isolation; spoiled and expired drugs should be cleaned and destroyed in time;

Hazardous chemical containers should have clear signs or labels, and eye-catching safety signs should be set up in the storage area.

The waste liquid and waste generated by each laboratory shall not be discarded at will, and shall not be discharged into the ground, underground pipes and any water source at will to prevent environmental pollution;

All kinds of waste liquid and waste collected by each laboratory will be transported to the waste recycling warehouse under the laboratory equipment management department, and the laboratory equipment management department will contact the Environmental Protection Bureau for designation and approval The relevant units with processing qualifications shall dispose of them uniformly.