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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Bar Keepers Friend ： ウィキペディア英語版 Bar Keepers Friend Bar Keepers Friend is a powdered cleaning agent produced since 1882. It was invented by a chemist in Indianapolis where it continues to be manufactured.〔(【引用サイトリンク】 title=The Bar Keepers Friend Story )〕 Trademark number 17,313 was filed on October 2, 1889 by George William Hoffman who asserted the name had been used since January, 1887. It became the base of a line of cleaning products made by SerVaas Laboratories in Indianapolis, Indiana, who started producing and carrying the product under the Bar Keepers Friend name in the 1950s. ==Active ingredient== Unlike more abrasive cleaning powders such as Comet and Ajax, Bar Keepers Friend uses oxalic acid as its primary active ingredient.〔(Indiana Business Magazine, Friday, April 1, 1994 ) 〕 A similar abrasive cleaning product, Zud Heavy Duty Cleanser, also contains oxalic acid.〔(【引用サイトリンク】url=https://www.erowid.org/archive/rhodium/chemistry/oxalic.otc.html )〕 Prolonged use and extended skin contact can cause skin peeling and contact dermatitis, avoided in prolonged use by wearing gloves. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Bar Keepers Friend」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.