CONCENTRA, MAKING OF OXALIC ACID FROM CASSAVA PEEL WITH VARIATION (2014) PEMBUATAN ASAM OKSALAT DARI KULIT SINGKONG DENGAN VARIASI KONSENTRASI HNO3 DAN LAMA PEMANASAN PADA PROSES HIDROLISIS. Other thesis, Politeknik Negeri Sriwijaya.
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Abstract
MAKING OF OXALIC ACID FROM CASSAVA PEEL WITH VARIATION CONCENTRATION OF NITRIC ACID AND TIME OF HYDROLYSIS PROCESS Dessy Ratnasari, 58 Pages, 12 Tables, and 18 Pictures 4 Attachments The purposes of these research are to produce oxalic acid from cassava peel. The material of this research is cassava peel, because cassava peel contains carbohydrate. The method of this research is oxidation carbohydrate with nitric acid. The oxidation process with nitric acid, matters the contain carbohydrate changed to oxalic acid. The oxidation carbohydrate with nitric acid produce oxalic acid that high purity. The research use variation time of reaction are 40 minutes, 60 minutes and 80 minutes, temperature constant control 75oC, the concentration of nitric acid are 40%, 50% and 60%. The best result of this research from 25 gr cassava peel produce 5,58 gr oxalic acid has 31,11 % yield, by using 60% nitric acid, time of reaction 80 minutes. The influence from the concentrations of nitric acid and time of reaction is higher concentration of nitric acid and time of reaction, so the product will be increase. The quality of oxalic acid has melting point 101,5 oC, dissolve in the water (20oC) and density 1,310 gr/ml. Oxalic acid has white colour crystals.
| Item Type: | Thesis (Other) |
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| Uncontrolled Keywords: | cassava peel, oxalic acid, oxidation |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Chemical Engineering > Undergraduate Theses |
| Depositing User: | Mrs Trisni Handayani |
| Date Deposited: | 18 Jan 2016 02:49 |
| Last Modified: | 18 Jan 2016 02:49 |
| URI: | http://eprints.polsri.ac.id/id/eprint/986 |
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