Dispersing agent NNO Naphthalene sulphonate formaldehyde condensate This product is light yellow to yellow-brown powder, an anionsurfaceactiveagent.
甲醛缩合物本品为浅黄色至黄棕色粉末，属阴离子型表面活性剂。
2
The method of national standard for measuring the anionsurfaceactiveagent in surface water has shortcomings such as complicated steps and large testing agent consumption.
论述国家标准方法测定地表水中阴离子表面活性剂方法中存在的步骤繁琐且试剂消耗量过大等问题。
3
Bromcresol burple - hexadecyldimethyl benzyl ammonium bromide spectrophotometry was used in the determination of anionsurfaceactiveagent in wastewater from lotion industry or sewage.