Industrial methanol used in the experiment is not the same as analytical pure methanol. Although they are all methanol, the purity and impurity content are very different. The methanol used in the experiment is usually of high purity and requires low impurity content so as not to interfere with the experimental results. However, the purity of industrial methanol is relatively low and there are many impurities, so it is not suitable for precision chemical experiments.

The stabilizer added in methanol will affect the experimental effect. Stabilizers are usually added to maintain the stability of methanol and extend the storage time. However, these stabilizers may react with other chemicals in the experiment, resulting in deviation of the experimental results. In addition, if the composition and concentration of stabilizer are unknown, it may have unpredictable effects on the experiment. Therefore, it is best to use methanol without stabilizer or choose other methanol products suitable for experimental requirements when conducting experiments.