00000ctm a22000007a 4500 UP-1685523046125413647 Buklod 20230503092606.0 m |o d | ta 071031s xx d r |||| u| (iLib)UPMNL-00000054981 Ph-6914 Gift ​​​​UPPharm eng LG 995 1954 C4 E7 Escarrilla, Amparo Mirasol 1916- The extraction, refining and analysis of wax from sugarcane filter press cake Amparo Mirasol Escarrilla. 82 leaves Available to the general public. Thesis (Master of Science in Chemistry)--University of the Philippines, June 1954. The amount of the wax obtained by the method of extraction described previously are summarized as follows: (Sample: La Carlota; Solvent: Naphtha, Toluene, Gasoline fraction; Wax%: 6.68, 6.55, 6.13); (Sample: Asturias; Solvent: Denatured alcohol; Wax%: 2.06); (Sample: Pasudeco (90 degree); Solvent: Denatured alcohol; Wax%: 11.86); (Sample: Pasudeco (105 degree); Solvent: Denatured alcohol, Refined alcohol, Toluene, Naphtha, Wax%: 11.54, 11.14, 13.39, 12.64); (Sample: Victorias; Solvent: Refined alcohol, Toluene, Naphtha; Wax%: 12.34, 11.59, 11.85). Both the Pasudeco and the Victorias samples gave a high percentage of wax with alcohol, toluene and naphtha as solvents. The other samples used gave a relatively small yield so that extractions with them were discontinued. Extracts with toluene and naphtha were brown in color which were hard to remove even after bleaching with chlorine or sulfur dioxide. Extracts with alcohol as solvent after evaporation to dryness was dark green in color due to the presence of chlorophyll and was hard to bleach. On the other hand, the wax separated by fractional crystallization from alcohol amounting to about 6.86% for Victorias and 8.76% for Pasudeco were light green in color. For the leather trades the removal of this color may not be necessary where the green color is actually added for leather finishes. This color, however, may be removed by the ordinary method of bleaching with reagents like chlorine or sulfur dioxide. Refining with acetone showed that most of the color can be removed without bleaching the wax, giving it a nice creamy color. The advantage of this method of refining lies in the fact that the alcohol extract can be readily treated with acetone in a short time thus eliminating the expediency of dissolving the extracted wax with the solvent before treating with acetone. The air-dried product was pale yellow after the treatent with acetone which removed the chlorophyl together with the fatty oil portion. This refined was can be obtained in granular form which has a higher price than the ordinary solid variety. From the results of the analysis of the wax it was found that the sugar cane wax from these two representative samples, Pasudeco and Victorias, is similar to some of the properties of the Carnauba wax. Waxes. Sugarcane. FI UP UPMNL PHARM LG 995 1954 C4 E7 Thesis