Parası kalmadığı için otobüse binemiyordur ailesi porno izle ona daha yeni para gönderdiği için tekrar porno istemeye utanınca mecburen otostop çekmek için youporn çantasını alarak yol kenarına gelir etekli porno liseli türk kız yol kenarında dururken yanına yaklaşan porno kibar bir gencin onu gideceği yere kadar bırakmak porno izle istemesine çok mutlu olur arabaya bindiklerinde gideceği yer ile porno arabayı kullanan adamın gittiği yer arasında çok mesafe sex izle farkı olduğunu anlayan türk kız bu yaptığı porno indir iyilik karşısında arabada ona memelerini açar porno sapıklaşan adam yol kenarındaki hotelde durarak porno izle üniversiteli otostop çeken türk kızına odada sakso çektirip sikerSono Facilitated Selective Nitration of Naturally Occurring Cardanol Using Phase Transfer Catalyst| Abstract

44 7460 854 031

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Abstract

Sono Facilitated Selective Nitration of Naturally Occurring Cardanol Using Phase Transfer Catalyst

Author(s): Patil BR, Chetta C, Pinjari DV and Pandit AB

In the present work, ultrasound facilitated nitration of hydrogenated cardanol was carried out using dilute nitric acid (9 wt%). The nitration was accomplished in the presence of tetrabutylammonium bromide (TBAB), which acts as a phase transfer catalyst. The nitration reaction was carried out in a 50 ml three neck flask, which was placed in an ultrasonic bath operating at a frequency of 24 kHz and with a delivery power of 150 watt. The effects of various parameters viz., agitation speed, temperature, nitric acid concentration, TBAB concentration, were studied on the yield of o-nitro cardanol. Kinetic studies have been performed for the nitration of hydrogenated cardanol, and the activation energy and pre-exponential factor for the reaction has been established. The work has clearly recognized that, the ultrasonic irradiations are superior for the synthesis of ortho nitro cardanol with higher yield as compared to the conventional approach.


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