Commonly used instruments in chemistry laboratory are important tools for conducting chemical experiments and scientific research. Details are as follows:
1, Beaker: used to carry out various types of chemical reactions, as well as the heating and cooling of solutions. According to the need, you can choose different sizes of beakers. Test tubes: used to carry out small chemical reactions, as well as for heating and cooling operations. Test tubes can be used directly for titration experiments. Centrifuge tubes: used for separation and precipitation experiments, as well as for centrifugal separation operations.
2, volumetric flasks: used to accurately measure the volume of the solution, as well as to carry out the operation of capacity. The volumetric flask has a standard scale and can be read directly. Buret: used for titration experiments, can accurately control the amount of reagents added. The buret has a standard scale and can be read directly. Thermometer: used to measure the temperature during the experiment. According to the need, you can choose different range of thermometer.
3. Specific gravity meter: used to measure the specific gravity of the solution, as well as density determination operations. Funnel: used for filtering and pouring liquids, as well as carrying out the washing operation of crystals. The mortar: used for grinding solid samples, as well as carrying out chemical reactions in the preparation of solid substances. Condenser tubes: for distillation and reflux experiments, as well as for cooling operations.
Chemical laboratory cleaning methods
1, clean up the experimental equipment: after the experiment, the experimental equipment should be cleaned up in a timely manner. For glass instruments, to first rinse with water, and then wash with a small amount of detergent, and finally rinse with tap water, drying spare. For metal instruments, to be rinsed with water and then wiped with a clean cloth.
2, clean up the laboratory floor: laboratory floors often have some debris, stains and liquids, etc., need to be cleaned up often. You can use a vacuum cleaner or mop to clean up the ground, but also can use some cleaners to remove stubborn stains.
3, clean up the laboratory countertops: laboratory countertops often have some experimental equipment, reagents and sundries, etc., need to clean up regularly. You can use some laboratory special countertop cleaner to wipe the countertop, but also can use a wet cloth or sponge to remove stains and dust on the countertop.
4, clean up the laboratory equipment: laboratory equipment such as ovens, furnaces and refrigerators, etc., need to be cleaned regularly. Can be cleaned in accordance with the instructions for use of the equipment, generally including turning off the power, remove the items, clean up the residue and disinfection and other steps.
5, regular cleaning: in order to keep the laboratory clean and hygienic, you can regularly clean. You can arrange for personnel to take turns cleaning, including cleaning up the dead ends of the laboratory, cleaning drains and cleaning vents and so on.