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純堿 碳酸鈉 無水碳酸鈉

 
 
單價 面議對比
詢價 暫無
發(fā)貨 河北石家莊市付款后3天內
過期 長期有效
更新 2013-08-03 10:39
 

石家莊駿達化工貿易有限公司

企業(yè)會員第14年
資料未認證
保證金未繳納
詳細說明
純堿 碳酸鈉 無水碳酸鈉
分子式:Na2CO3
分子量:105.99
食用級/工業(yè)級 含量達到99%以上
【性狀】白色粉末或小顆粒。具有吸水性,在空氣中逐漸吸收水分成為一水合物。相對密度2.532。400℃開始分解。熔點851℃,易溶于水,不溶于乙醇。 
【用途】 用作分析試劑,如作基準試劑,分解樣品熔劑、沉淀劑、緩沖劑、發(fā)射光譜分析中樣品揮發(fā)劑。還用于制備鈉鹽、鈉玻璃及影片印洗。
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