There is a shortage of chlorinated benzene, a shortage of nitric acid, and a shortage of dinitrochlorobenzene, and prices have risen sharply
It will last a long time.
sulphur black will shortage of supply 
There is a shortage of chlorinated benzene, a shortage of nitric acid, and a shortage of dinitrochlorobenzene, and prices have risen sharply
It will last a long time.
sulphur black will shortage of supply
