#TITLE_ALTERNATIVE#

• Main Author: SUWANDI
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/9417
• Institution: Institut Teknologi Bandung

Abstract: <br /> <br /> <br /> The influences of the radiations to vitamin K3 sodium bisulfite had been attemped. For its irradiations was used Xenotest-150 which has the radiation spectra in the range 300-700 nm. With the arrangement device of temperature and humidity at this instrument, enable the changing occured because by the radiation influences only neither by heat nor by humidity. The result of photolysis of vitamin K3 sodium bisulfite had been determined by thin layer chromatography. Based on the spectroscopy data of the compounds which isolated successfully, and had been concluded that: the compound by Rf=0,9 has the molecular formula C11H802 (M=172). Infrared spectra indicating the exis ting the group of -CH3(&#965;=2960 cm-l), group C=0 (&#965;=1715 cm-l), and aromatic C=C(&#965;=1600 cm-1). The nuclear magnetic resonance indicated the proton at 2,2 &#948;, 6,8 &#948;, 7,8 &#948;, and 8,1 &#948;. The ultraviolet spectra in chloroform has maximum absorption at =250 nm, =270 nm, and =335 nm. Based on the data obtained, so far we suggested that the compound structure is: 2-methyl-1,4-naphthoquinone. The spectroscopy data of infrared and nuclear magnetic resonance of the compound by Rf=0,7 and Rf=0,2 indicated that they have same patterns. Infrared spectra shows the existing of group of -CH3 (&#965;=2960 cm-1), and -CH2- (&#965;=2850 cm-1), whereas nuclear magnetic resonance spectra shows the protons existing at 1,3 and 0,9 . The different existed at its mass spectra, that the compound by Rf=0,7 has M=394, whereas the compound by Rf=0,2 has 366. Fragmentation pattern of both compounds have the charactristic, which always loss of masses 14 (CH2) and the base peak existed at m/e=57. This is specific fragmentation of aliphatic ketones or aliphatic hydrocarbons. The absence of the absorption at &#965;=1700 cm-1 in infrared spectra, indicated this compound is not the ketones. So far we suggested that compounds by Rf=0,7 and Rf=0,2 are octacosane and hexacosane respectively.