Abstract In order to improve the purity of industrial product,Antioxidant BHT was purified by the methods of recrystalize and zone melting.The purity was determined by high performance liquid chromatography(HPLC) and differential scanning calorimetry(DSC).The purity tested by HPLC is 99.09% with relative standard deviation(RSD) of 0.08%,tested from the way of standard curve.The purity tested by DSC is 99.16% with RSD of 0.14%.This purified antioxidant BHT reaches the same level of international product.
WEI Bo-rong,CHEN Qing,BAO De-jun,YIN De-zhong.Purification and Purity Determination of Antioxidant BHT[J] Chemcial Industry and Engineering, 2006,V23(1): 37-40
2006, Vol. 23 
