The test results show that the method is feasible. The reclamation of diluted hydrochloric acid and oxalic acid can reach more than 95%.
经试验证明,采用该种方法处理草沉废水并将产生的稀盐酸和草酸回用于稀土生产是可行的。
METHODS Used diluted hydrochloric acid as dissolvent, to ensure the disturbance degree of accessories and proof the feasibility of testing method.
方法试验采用稀盐酸做为溶出介质,依法确证辅料的干扰程度及含量测定方法的可行性。
A new spectrophotometric method for the determination of trace nitrite is studied. The method is based on the nitrosation reaction of xylene cyanol FF with nitrite in diluted hydrochloric acid medium.