The method of making things
There are techniques in modern times, and "HCl + In + Ethyl Acetate" is the key to making things. It takes "HCl + in + Ethyl Acetate" as the path and performs various operations.

Prepare all materials first, take Ethyl Acetate according to the amount, and place it in the purifier. Then put In into it, slowly stir it to make it blend. Then, add HCl dropwise, observe changes carefully, and control its rate and amount.

Observe its reaction, or color change, or heat generation, are all symptoms. According to its situation, adjust it at the right time, so that the reaction can go smoothly. After completion, through various methods of separation, such as filtration, steaming, etc., the made thing can be obtained.

This method is delicate, but when operating, you must abide by the procedures, and the safety will endanger the physical properties before you can get good things.