China National Standard of CBS storage life is 6months.
During high temperature and humidity in summer or during long-term preservation, CBS breaks down to produce mbts. After decomposition, the CBS color dims, the amine flavor increases, and even the material bonding block.
Liquid chromatography must be re-analyzed every 90 days to calibrate its purity. Decomposition of the sub-sulfonyl amine products in the use of the process will cause bubbles, coke burning time is shortened, vulcanization speed slows down, the tensile strength decreases, etc., will affect its due vulcanization promotion characteristics