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PEMBUATAN ASAM-3-OKSOURSOLAT DAN ASAM-3-OKSO OLEANOLAT DARI TRITERPENOID BUAH…
Oxidation of the hydroxyl group (C-3 -OH) of ursolic acid [oleanolic acid], isolated from methanolic extract of tembesu fruit, had been done using Jones’ reagent (C1O3/H2SO4/H2O) in acetone with 40% yield. Spectrum data of ]H-NMR showed that the methine proton at C-3 position of the triterpenoids was no longer existed, and the analysis of mass spectrum showed that the oxidation products had m…
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- xv, 38 hlm.; ill.; tab.; 28 cm.
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- Call Number
- T666712014
PREPARASI DAN KARAKTERISASI NANOMATERIAL BERBASIS POLIOKSOMETALAT TIPE KEGGIN…
Preparation of nanomaterial based on polyoxometalate with Si02, Ti02, ZrOCl2 and TaCI to form nanomaterial H4[a-SiWi204o]-nH20-Si02, H4[a-SiWi2O40].nH2O-TiO2, H4[a-SiW,2O40].nH2O-ZrOCl2 and H4[a-SiWi2O40].nH2Ota has been carried out. Nanomaterials were characterized using FT-IR, XRD and SEM. The results of characterization show that nanomaterials ELt[a-SiWi204o].nH20-Si02 and nanomaterial from …
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- xviii, 48 hlm.; ill.; tab.; 28 cm.
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- Call Number
- T655342014
PREPARASI DAN KARAKTERISASI KALSIUM OKSIDA DARI ANGKANG RAJUNGAN (Portunus pe…
Preparation of calcium oxide from Portunus pelagicus through thermal decomposition for 3 hours at various temperature 700 °C, 800 °C, 900 °C, 1000 °C, and 1100 °C. The calcium oxide from decomposition was carried out and characterized by X-Ray Diffractometer (XRD), FT-IR spectrophotometer and SEM-EDX analyses. The result of XRD show decomposition Portunus pelagicus at 1000 °C have diffrac…
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- xvii, 49 hlm.; ill.; tab.; 28 cm.
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- Call Number
- T655292014
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