Sodium and potassium gallium hydride exhibit excellent reducing power for the reduction of aliphatic and aromatic halides to the corresponding alkanes or arenes, respectively. KGaH 4 possesses lower reducing power than NaGeH 4 , however, it proves to be an excellent reagent for the selective reduction of the halide in the presence of various functional groups such as ester, nitrile and lactone.
Background/Objectives: This study aims to provide basic material to establish safety sign standard and control standard of cosmetic tattoo pigment by analyzing heavy metal component of pigment used in cosmetic tattoo.Methods/Statistical analysis: The experiment analyzed heavy metal such as antimony(Sb), cobalt(Co), copper(Cu), lead(Pb), zinc(Zn), barium(Ba), tin(Sn) included in regulated item by applying safety standard of prohibition of use or content restriction of hazardous material since September 26, 2015 in accordance with “Act on Registration, Evaluation, Etc. of Chemical” simplemented by the Environment department on June 26, 2015.Findings: As a result of examining the contents of heavy metals in dyes and pigments used in cosmetic tattoo products, it was found that the total of 5products exceeded the reference value and found to be unsuitable for safety standards.Improvements/Applications: it requires marking of detailed compound ingredient and guidelines. There is a need for micro content analysis using precise measuring tool in the future.
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