SINTESIS NATRIUM PENTAGAMAVUNONAT DAN UJI STABILITASNYA MENGGUNAKAN SPEKTROFOTOMETER UV-Visible | Zendy

Ely Setiawan | Zendy; Trisnowati Trisnowati | Zendy; Dadan Hermawan | Zendy

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SINTESIS NATRIUM PENTAGAMAVUNONAT DAN UJI STABILITASNYA MENGGUNAKAN SPEKTROFOTOMETER UV-Visible

Author(s) -

Ely Setiawan,

Trisnowati Trisnowati,

Dadan Hermawan

Publication year - 2006

Publication title -

molekul

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.125

H-Index - 2

eISSN - 2503-0310

pISSN - 1907-9761

DOI - 10.20884/1.jm.2006.1.1.19

Subject(s) - chemistry , sodium ethoxide , sodium , methanol , tetrahydrofuran , solvent , nuclear chemistry , proton nmr , visible spectrum , ethanol , organic chemistry , materials science , optoelectronics

A research on the synthesis of sodium pentagamavunonat (Na-PGV-0) and its stability test using UV-Visible spectrophotometer were carried out. The synthesis of Na-PGV-0 carried out by reacting PGV-0 in tetrahydrofuran solvent refluxed with sodium ethoxide in mol comparison (1:2) for two hours. Structure elucidation by spectroscopic methods using UV-Visible, IR, 1H-NMR, 13C-NMR and stability test in water using UV-Visible spectrophotometer. The reaction yields 107,21 % (% w/w) products. A products was soluble in water and methanol. Structure elucidation results indicated that the formed compound where the OH phenolic of pentagamavunon-0 was replaced by sodium ions. Stability test shows that decreasing of sodium

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