一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

ChemicalBook >> journal list >> International Journal of Chemical Engineering and Applications >>article

Synthesis and Characterization of Carboxymethyl Cellulose (CMC) from Water Hyacinth Using Ethanol-Isobutyl Alcohol Mixture as the Solvents

Published:1 January 2014 DOI: 10.7763/IJCEA.2014.V5.347
A. H. Saputra,?Linnisa Qadhayna,?A. B. Pitaloka

Abstract

? Abstract—Water hyacinth, a free-floating aquatic weed originating from South America has become a major floating weed of tropical and subtropical regions of the world. The plant has the tendency to regenerate from seeds and fragment allowing rapid increase in plant population. Water hyacinth is however a fiber that is rich in its cellulosic compounds, which can be derivated into somewhat multifunctional properties. Carboxymethyl Cellulose (CMC) is a derivated cellulose that is used in food products as a thickener agent or non-food products such as detergents, paints, and others. The research has investigated further on how one would synthesize CMC from water hyacinth as well examining the characterization of the CMC samples that is originated from the plant. The production of CMC involves four main processes: the isolation of alpha-cellulose from the water hyacinth and the synthesis by the alkali-catalyzed reaction (alkalization) of cellulose with chloroacetic acid (carboxymethylation) and finally the purification of the CMC itself to remove undesirable compounds. In this research, the variations are comprised of the NaOH added (5 M - 35 M) during alkalization and the ratio of the solvent between isobutanol and ethanol (ratio 80:20, 50:50 and 20:80) thus fifteen samples are obtained. The characterization is based on two testing methods: FTIR and Degree of Substitution (DS). During FTIR test, it is proven that CMC is produced in the experiment. This is verified from the spectrum transmitting 1400 cm-1 1600 cm-1 indicating ether and carboxyl functional group consecutively. On the other hand, the highest DS is obtained in sample CMC-28-10 with a value of 1.76 with the highest purity of 93.24.

Substances (4)

Related products
Procduct Name CAS Molecular Formula Supplier Price
Sodium hydroxide 1310-73-2 NaOH 1358 suppliers $14.00-$17490.00
Ethanol 64-17-5 C2H6O 955 suppliers $10.00-$28350.00
2-Methyl-1-propanol 78-83-1 C4H10O 874 suppliers $7.62-$6240.00
CarboxyMethyl cellulose sodiuM (CMC-NA) - Inquiry

Similar articles

IF:4.7

Recent Developments of Carboxymethyl Cellulose.

Polymers Md Saifur Rahman,?Md Saif Hasan,etc Published: 20 April 2021
IF:2

Determination of the Solubility of Ammonium Dihydrogen Phosphate in Water–Ethanol System at Different Temperatures from 283.2 to 343.2 K

Journal of Chemical & Engineering Data Dejun Xu, Xing Xiong,etc Published: 7 December 2015
IF:7.7

Preparation and properties of edible active films of gelatin/carboxymethyl cellulose loaded with resveratrol

International Journal of Biological Macromolecules Cong Sun, Yu-Sheng Wang,etc Published: 1 December 2024
柯坪县| 溆浦县| 泽州县| 区。| 南江县| 漳浦县| 佳木斯市| 宝鸡市| 平山县| 景德镇市| 高邑县| 交口县| 常德市| 浏阳市| 邯郸县| 玛纳斯县| 周口市| 扎兰屯市| 大埔县| 赤峰市| 澜沧| 怀来县| 普兰店市| 新巴尔虎右旗| 延吉市| 温州市| 淮阳县| 乌审旗| 会泽县| 丽水市| 彭州市| 通州市| 尼木县| 济源市| 当雄县| 临猗县| 光泽县| 大洼县| 郎溪县| 蒲江县| 宜川县|