We are India based organic Chemicals manufacturer of Aromatic Amine. we produce almost 4500 MT of Para Chloroaniline annually. These days we are facing problem with appearance of material. At the time of flaking the material is milky white but after two to three days, it becomes brown to read and after one week it become totally black. Can any one suggest any antioxident to sustain the white colour for at least one month.
Material Purity is 99.5 % min. ( Does not change with time)