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首頁 > 供應產品 > 二丙二醇
二丙二醇
單價 30000.00 / 噸對比
銷量 暫無
發貨 廣東廣州市付款后24小時內
庫存 10噸起訂1噸
品牌 南韓
過期 長期有效
更新 2021-04-01 02:13
 
詳細信息
 主要用作乙酸纖維素、硝酸纖維素、蟲膠清漆、蓖麻油的溶劑。用作硝酸纖維溶劑及有機合成中間體由1,2-丙二醇與環氧丙烷縮合而得。將1,2-丙二醇與環氧丙烷在85%的***作用下進行縮合反應。反應液用氫氧化鈉溶液中和,經過濾,減壓蒸餾,再在常壓下精餾,收集229-233℃餾分即得一縮二丙二醇。原料消耗定額:丙二醇1300kg/t、環氧丙烷1500kg/t、***(98%)100kg/t、燒堿(95%)100kg/t。
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