... for the preparation of pure formaldehydeAgricultural chemicals: Paraformaldehyde used for production of herbicide, pesticide and bactericide, such ... acetochlor, butachlor, machete, bismerthiazol, etc. Coatings: Paraformaldehyde used for synthesis of oil paint and top-grade for ... car paint. Medicines: Paraformaldehyde used for medical and hygienic disinfection instead of the ...