EFRIDAYANTI, - (2014) PEMBUATAN ASAM OKSALAT DARI KULIT KENTANG DENGAN VARIASI KONSENTRASI ASAM NITRAT (HNO3) DAN LAMA PEMANASAN PADA PROSES HIDROLISIS Disusun. Other thesis, Politeknik Negeri Sriwijaya.
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Abstract
MAKING OF OXALIC ACID FROM POTATO PEEL WITH VARIATION CONCENTRATEDNITRIC ACID (HNO3) AND TIME ON HIDROLYSIS PROCESS (Efridayanti, 42 pages, 10 tables, 20 pictures, 4 attachments) Oxalic acid is a chemical subtances having the formula (H2C2O4) with the systematic name etanadioat acid. Oxalic acid is used as a bleaching lye in the tanning industry, metal cleaning and bleaching in the textile industry. The purpose of these research are to product oxalic acid from potato peel. Potato peel has a carbohydrate. The method that used for making for making oxalic acid is oxidation carbohydrate contained on potato peel with nitric acid. Oxidation is the interaction between oxygen molecules with the molecules in an object. The variabel process are time of reaction from 40, 50, 60, 70 and 80 minutes; the concentrations of nitric acid uis used in this reaction 40%, 50%, and 60% ; temperature constant of 750C. The result of the research from 25 gram patato peel product 5,93 grams oxalic acid has 32,65% yield, by using 60% nitric acid, time of reaction 80 minutes, temperature constant of 750C, the higher the concentration of nitric acid then the resulting product will be increas. The quality of oxalic acid has white crystal, and melting point 101,70C. The result almost fulfilled standart of oxalic acid. Key word : potato peel, oxalic acid, nitric acid
| Item Type: | Thesis (Other) |
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| Uncontrolled Keywords: | potato peel, oxalic acid, nitric acid |
| 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/987 |
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