Rotary evaporator is a common equipment used in the laboratory. It consists of a motor, a distillation flask, a heating pot, a condenser, etc. It is mainly used for continuous distillation of volatile solvents under reduced pressure. So how do you use the rotary evaporator correctly? What are the correct specifications for the rotary evaporator? Shanghai Bayu comes to you for detailed analysis!
The following are the ten correct usage specifications for the rotary evaporator:
1. Height adjustment: manually lift, turn the hand wheel above the machine column, turn to increase, reverse to decrease. Electric lift, the hand touches the rise button and the main unit rises, and the hand touches the down button to lower the main unit.
2. There are two external joints on the condenser for connecting the cooling water. One end is connected to the water and the other end is connected to the water. Generally, the tap water is connected. The lower the temperature of the condensate, the better the effect. The upper port is equipped with a vacuum connection, and the vacuum pump is connected to the vacuum tube for vacuuming.
3. Turn the speed control knob to the minimum before starting the machine, press the power switch indicator light, then slowly turn right to the required speed. Generally, the large evaporation bottle is used in medium, low speed, high viscosity solution with lower speed. The flask is a standard interface No. 24, and is supplied with two flasks of 500 ml and 1000 ml, and the amount of the solution is generally not more than 50%.
4. After the rotary evaporator is turned on, the metal sleeve thermometer, the marine thermometer, the V-type thermometer, and the copper sleeve thermometer are familiar with the corresponding positions of the various components. When taking the instrument, hold the bracket with one hand, sit with one hand or hold the bracket with both hands, and slowly take out the bracket. It is strictly forbidden to use a portable telescope or a horizontal axis.
5. Before removing the instrument, place the tripod first, put it on the tripod immediately after removal, and fix it with the center screw.
6. The rotary evaporator should not leave the instrument until it is packed. The rotary evaporator must be carried by the surveyor, must not collide, and must not be placed upside down. The rotary evaporator must be placed in a shock-proof box with a cushion, and the words “not inverted†should be marked on the outside of the box, and “optical or electronic instruments should be written. Care should be taken to avoid heavy pressureâ€. If necessary, send someone to escort.
7. When moving the station at a short distance, the instrument should be held vertically so that the instrument maintains the vertical state of the vertical axis. Do not lie on the shoulder to avoid bumping the instrument or damaging the shafting of the instrument.
8. When the rotary evaporator is packed, the brake screw should be fixed or loosened according to the type of the instrument. When the parts are placed in their respective positions, the cover can be lightly closed and the hooks on both sides can be fastened.
9. When checking the box, pay attention to check the tools and accessories to see if they are properly placed, so as not to shake the parts during transportation and damage the parts of the instrument.
10. When the box and the cover are in trouble, the cause should be ascertained and then covered. Hard pressure and hard buckle are strictly forbidden.
The above is what is the correct use specification for the rotary evaporator? For the full content of the book, if you want to know more about the rotary evaporator or friends who are interested in purchasing, you can always call the Shanghai Bashu Hotline for detailed consultation!
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