Hello, my friend! Because I am engaged in chemical chlor-alkali industry, not civil explosion industry, I don't know much about this, but you said that KCl in Qinghai is basically produced by our unit. Now I am engaged in the utilization of KCl, using KCl to make KOH, K2CO3 and so on. I know KCl is mainly used as a flame retardant in the civil explosion industry, such as emulsion explosives used in coal mines. Adding KCl can reduce the temperature and heat during explosion, shorten the length of explosion flame and the flame holding time, right? Avoid combustible gas enrichment. You asked me why I couldn't use Qinghai KCl instead. I really don't know, but I compared the analysis results of Russian potash fertilizer and Qinghai potash fertilizer. I found that the biggest difference is that the ammonia content is different from the magnesium content. Generally, the ammonia content of 98% KCl in Qinghai is 500-700 ppm, while that of Russian potash fertilizer is only 70-80ppm. The magnesium content is about 2-3 times. It is estimated that these two substances have an impact. If you have the conditions, you can try the experiment, maybe you can come up with something and create economic benefits. It's just that chemical raw materials are not allowed to be mailed, otherwise it doesn't matter if I send you some KCl from Qinghai for experiments. We have many here, hehe. It's good to communicate with you! Please leave a message!