Dispersant NNO Naphthalene sulphonate formaldehydecondensate This product is light brown powder, an anionic surface active agent.
甲醛缩合物本品为浅褐色粉末，属阴离子型表面活性剂。
2
Dispersing agent NNO Naphthalene sulphonate formaldehydecondensate This product is light yellow to yellow-brown powder, an anion surface active agent.
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。
3
Vacuum residuum emulsifying process comprises mixing vacuum residuum, water and emulsifier containing petroleum sulfonate-formaldehydecondensate through stirring.