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[Chemical Knowledge]：Notes on petroleum ether degreasing

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Petroleum ether degreasing is one of the common operation steps in the laboratory, which is carried out to remove impurities in organic matter. In the petroleum ether degreasing, need to pay special attention to the following aspects.

requires strict adherence to laboratory safety procedures. Petroleum ether is flammable. Avoid sparks and static electricity during operation to avoid fire. You also need to wear the necessary protective equipment in the laboratory, such as lab clothes, gloves, and goggles.

should pay attention to the volatility of petroleum ether. During the degreasing process, ensure that the operation is in a well-ventilated laboratory environment to avoid the toxic gas caused by petroleum ether causing harm to human health. Attention should be paid to avoid contact with petroleum ether during

operation. Petroleum ether is irritating to the skin and respiratory tract, so try to avoid direct contact during operation. Once splashed or touched the skin, rinse with plenty of water immediately and seek medical treatment.

In addition, in the petroleum ether degreasing process, it is necessary to wash with dry petroleum ether to avoid the mixing of water and affect the degreasing effect. At the same time, attention should be paid to controlling the washing time and temperature to avoid unnecessary losses due to too long washing time or too high temperature.
After the
degreasing is completed, the waste liquid shall be treated in a standardized way and shall not be poured into the sewer or other places at will. Petroleum ether waste liquid needs to be specially collected and treated to avoid environmental pollution.

petroleum ether degreasing is a very careful operation step, the correct operation can not only ensure the accuracy and reliability of the experiment, but also ensure the safety of the experimental personnel. It is hoped that everyone can strictly follow the procedures when conducting petroleum ether degreasing experiments to obtain ideal experimental results.

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