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首頁 > 供應產品 > 供應 PG (沒食子酸丙酯) 抗氧化劑 99.8%
供應 PG (沒食子酸丙酯) 抗氧化劑 99.8%
單價 面議對比
詢價 暫無
發貨 陜西西安市付款后24小時內
品牌 沒食子酸丙酯 13679166233
型號 13679166233
規格 25kg
過期 長期有效
更新 2013-05-31 10:35
 
詳細信息

沒食子酸丙酯
    

沒食子酸丙酯:propyl gallate簡稱PG。白色至淺褐色結晶粉末,或微乳白色針狀結晶。無臭,微有苦味,水溶液無味。PG難溶于水,微溶于棉子油、花生油、豬脂。其0.25%水溶液的PH值為5.5左右。沒食子酸丙酯比較穩定,遇銅、鐵等金屬離子發生呈色反應,變為紫色或暗綠色,有吸濕性,對光不穩定,發生分解,耐高溫性差。

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