Soap-based detergent formulations: amphoteric derivatives of

من طرف **fakhrcampos** الثلاثاء ديسمبر 11, 2007 2:34 am

Soap-based detergent formulations: amphoteric derivatives of alkylbenzenesulfonamides

Surface active amphoteric derivatives were prepared from alkylbenzenesulfonyl chlorides. Industrial detergent alkylates, as well as benzene and pure 1-phenylalkanes whose side chains ranged from C₁ to C₁₂, were used as starting materials in this study of chemical structure-physical property relationships. The alkylbenzenes were first converted into the corresponding alkylbenzenesulfonyl chlorides with chlorosulfonic acid, and the sulfonyl chlorides were further treated with N,N-dimethyl-1,3-diaminopropane or N,N-bis-(2-hydroxyethyl)-1,3-diaminopropane. The reaction products were quaternized with propanesultone to produce amphoteric surfactants in high yields. The N,N-dimethyl derivatives of pure phenylalkanes were white crystalline powders, whereas the N,N-bis-(2-hydroxyethyl) derivatives were light , lime soap dispersing requirement, surface tension, wetting ability, and calcium ion stability were determined. The commercial detergents alkylate derivatives showed good detergency by themselves as well as in formulations with soap or with soap and silicate builder. Good lime soap dispersing properties were observed with compounds possessing a side chain of at least 4 carbon atoms.

من طرف **احمد زياده** الثلاثاء يناير 22, 2008 3:40 pm

ايه ده يا فخر اول القصيده كده ماشى يا عم بس موضوع جميل استمر ويريت يكون بالعربى المرة الجايه عشان الفائده تعم على الجميع مش طلبة الكليه بس او الدارسين بالانجليش

Soap-based detergent formulations: amphoteric derivatives of

Soap-based detergent formulations: amphoteric derivatives of

رد: Soap-based detergent formulations: amphoteric derivatives of