Abstract: Part of well salts in Sichuan contains barium which is poisonous and excessive intake can cause arthralgia. This natural fact and disease truth were revealed and solved when the Huanghai Chemical Industry Research Institute moved to Sichuan in 1938. The Huanghai Chemical Industry Research Institute investigated the distribution and composition of brine in Sichuan, found that some yellow brine contained barium, and gave an objective evaluation on the harm and industrial use of barium in brine, and studied the method of detecting the amount of barium and extracting barium from salt, and actively cooperated with the government to implement barium extraction. This process demonstrates the demeanor of “absolutely believe in science in principle, and serve the society as the greatest honor in spirit” of the Huanghai Chemical Industry Research Institute. More importantly, the institute has played a powerful role in promoting the solution of the barium salt problem.

Key Words: Huanghai Chemical Industry Research Institute; Sichuan Salt; Barium Salt; Arthralgia disease