n.
钠
钠
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- Most commercial sodium carboxymethylcellulose (CMC) products have a degree of substitution (DS) in the range 0.4--0.8.
大多数羧甲基纤维素钠具有0.4~0.8的取代度(DS)。收藏 - If necessary, nylon, acrylic and polyester fibers may be bleached with sodium chlorite under acidic conditions.
在必要时,尼龙、丙烯腈、涤纶纤维可在酸性条件下用氯化钠漂白。收藏 - Passing liquid cellulose (cellulose xanthate) through a narrow slot into another liquid ( solution of sulfuric acid, sodium sulfate and zinc sulfate)
把液体纤维素(黄酸纤维素)从一条狭缝喷出,进入另一种液体内(硫酸,硫酸钠和硫酸锌溶液)收藏 - Add 100 ml 0.0125 M sodium oxalate (Na2C2O4) to the solution.
加入100亳升的0.0125M草酸钠溶液(Na2C2O4)。收藏 - Over 90% of the potassium and sodium in milk is soluble but only about 35% of the calcium and magnesium.
CaHCO3,CaPO4+乳中大约90%以上的钾和钠是可溶态的,而钙和镁仅有35%是可溶的。收藏
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