Sorted by the size of the sample contact area, the area of ​​the concentric cylinder rotor is larger than the area of ​​the parallel plate and the cone plate. The rotor with a larger diameter can have more contact area with the sample than the rotor with a smaller diameter. Therefore, within the same measuring

When the reaction kettle of the reactor circulation heating device is operated, the temperature requirement is relatively high. Then, how much do you know about the heating of the reactor in the reactor heating device? The reactor circulation heating device has a high operating temperature, and usually the chemical reaction needs to be carried out

Bad habits during the experiment1. When the sample is weighed or measured, the data is first recorded on the draft paper, and the sample is finished and then copied to the record book; sometimes the record is completed after the experiment is completed;2, the steps that need to be timed, using the time on the