Zhejiang Xianju Lianming Chemical Plant is an enterprise producing diluent for nitrocellulose coating(amyl accetate) with a yearly production of over 1,000T. With the development of the society and the improvement of the people's living conditions, the demand of diluent for nitrocellulose coating is getting larger and larger. Diluent for nitrocellulose coating is made up of the mixture of methylal, butyl acetate, toluene and cyclohexanol. Safety is important in the production and application process.