TY - JFULL AU - J. Chumee and D. Seeburin PY - 2014/6/ TI - Cellulose Extraction from Pomelo Peel: Synthesis of Carboxymethyl Cellulose T2 - International Journal of Materials and Metallurgical Engineering SP - 434 EP - 437 VL - 8 SN - 1307-6892 UR - https://publications.waset.org/pdf/9998337 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 89, 2014 N2 - The cellulose was extracted from pomelo peel and an etherification reaction used for converting cellulose to carboxymethyl cellulose (CMC). The pomelo peel was refluxed with 0.5 M HCl and 1 M NaOH solution at 90°C for 1 h and 2 h, respectively. The cellulose was bleached with calcium hypochlorite and used as precursor. The precursor was soaked in mixed solution between isopropyl alcohol and 40%w/v NaOH for 12 h. After that, chloroacetic acid was added and reacted at 55°C for 6 h. The optimum condition was 5 g of cellulose: 0.25 mole of NaOH : 0.07 mole of ClCH2COOH with 78.00% of yield. Moreover, the product had 0.54 of degree of substitution (DS). ER -