The working principle and use of vortex mixerThe vortex mixer is a laboratory instrument that cleverly combines oscillation and vortex. It can be applied to a variety of mixing and vortex oscillation operations, making the experiment more convenient and faster.Working principle and use:The vortex mi Read More

Maintenance and use of magnetic stirrer1. Maintenance and precautions①The magnetic heating stirrer must be grounded reliably to ensure equipment and personal safety.②When stirring, adjust the speed control knob slowly. Too fast adjustment will cause the stirring rotor to separate from the magnetic f Read More

Handling methods of common failures of magnetic stirrerTroubleshooting of Magnetic StirrerQ: What should I do if the rotor of the magnetic stirrer does not move?A: You can check if the stirring viscosity is too high and the magnetic force is not enough; or if you need to change a high-power magnetic Read More

The difference between measuring cup and measuring cylinder1. The definition of measuring cup and measuring cylinder is differentMeasuring cup: The measuring cup is a measuring (symbol) measuring device, which is used to measure the volume of liquid discharged from the measuring device. The volume o Read More

How to choose a magnetic stir barIntroduction of Magnetic StirrerCommon magnetic stirrers are glass magnetic stirrers and polyethylene tetrafluoroethylene magnetic stirrers. Glass magnetic stirrers are made of high temperature resistant glass to seal the permanent magnets, while polyethylene PTFE ma Read More

Laboratory equipment management and maintenanceThe laboratory equipment is the right arm of the laboratory staff and is indispensable. However, due to insufficient professional knowledge, many laboratory administrators have problems with instruments and equipment that are more important than mainten Read More

Laboratory equipment mixer classification and precautions for its useStirrer is one of the indispensable instruments for organic chemistry experiments. It can make the reaction mixture more uniform and the temperature of the reaction system more uniform, which is conducive to the chemical reaction, Read More

Why wearing a mask is very important to prevent new coronary pneumonia？Of course, the best way is vaccines and drugs that can be cured quickly. At present, the vaccine is still being developed and tested, and it will take some time to be put on the market. There are currently no fast-curing medicine Read More

Disposable masks can be used several times in the new epidemic of pneumoniaIn the epidemic of new coronavirus infection pneumonia, the local supply of masks is in short supply, and there is a certain panic buying in the market. So, how many times can a common disposable mask be used?In the current p Read More