SURFACE ACTIVE AGENTS. SULPHURIC ACID AND OLEUMS FOR USE AS RAW-MATERIALS IN DETERGENTS FORMULATIONS. DETERMINATION OF TOTAL ACIDITY, AND CALCULATION OF FREE SULPHUR TRIOXIDE CONTENT OF OLEUMS. TITRIMETRIC METHOD
表面活性剂 洗涤剂配方中用作原料的硫酸和发烟硫酸 油中总酸度的测定和游离三氧化硫含量的计算 滴定法