| abstract |
[PROBLEMS] To provide an aromatic vinyl compound by using a compound which can obtain an initial polymerization and a long-term polymerization inhibitory effect in an aromatic vinyl compound production, purification, storage or transportation step and which is easy to handle. To provide a method for suppressing the polymerization of In a process for producing, purifying, storing or transporting an aromatic vinyl compound, (A) a 2,2,6,6-tetramethylpiperidine-1-oxyl compound, (B) a 2-nitrophenol compound, (C) A method for inhibiting polymerization of an aromatic vinyl compound, which is added in combination with a sulfonic acid compound. [Selection diagram] None |