General safety knowledge in the laboratory

1. All medicines, standard samples and solutions should have labels. Never put items in containers that do not match the label.

2. It is forbidden to use laboratory utensils to hold food, and do not use teacups and tableware to hold medicines, and do not use beakers as tea sets.
3. When diluting sulfuric acid, it must be carried out in a hard heat-resistant beaker or conical flask. Only the concentrated sulfuric acid can be slowly poured into the water and stirred while pouring. When the temperature is too high, it should be cooled or cooled down before continuing. Pour water into sulfuric acid!
4. Before opening the volatile liquid reagent, cool the reagent bottle in a stream of tap water for a few minutes. When opening the bottle, do not face people, preferably in a fume hood.
5. When heating flammable solvents, it must be carried out in a water bath or sand bath to avoid open flames.
6. The utensils containing strong corrosive, flammable, toxic or explosive materials should be cleaned by the operator.
7. When moving or opening a large bottle of liquid medicine, the bottle cannot be placed directly on the cement floor. It is better to pad it with a rubber cloth or a straw mat. If it is wrapped in gypsum, it can be opened with blisters. It is strictly forbidden to hammer or knock it. Rupture proof.
8. When removing the boiling solution, shake it gently with the bottle clamp to avoid splashing and hurting people.
9. The glass rod, glass tube, thermometer, etc. should be padded with cotton cloth when inserting or pulling out the rubber stopper and rubber tube, and they should not be inserted or pulled out forcibly to avoid breaking and stabbing people.
10. When opening the high-pressure gas cylinder, it should be slow, and the outlet should not be directed to people.
11. HCL, NO2, H2S, SO3 can be released in the preparation of drugs or in the test
12. Electricity usage should comply with safe electricity usage regulations.
13. The laboratory should be equipped with first aid medicines, fire fighting equipment and labor protection supplies.
14. It is necessary to establish a safety officer system and safety registration book, improve the post responsibility system, and check water, electricity, gas, windows, doors, etc. before going off work every day to ensure safety.