... sample 1.Brown liquid washing oil,wash oil with high purity used to absorb benzene 1).China larger ... components include methyl naphthalene, dimethyl naphthalene, cresol, xylenol, high boiling point phenol, pyridine base, quinoline and etc. ... The wash oil from our production has a high purity and stable and good quality, it is being ... liquid washing oil,wash oil with high purity used to absorb benzene