- 更多网络例句与用水搅拌相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Transfer 50 ml of this solution to 200-ml Erlenmeyer flask, or, if smaller aliquot is taken, dilute to about 50 ml with water. Add 10 ml 4 N H2SO4, 1 ml KI,1 drop ammonium molybdate solution, and 50 ml water. With continuous agitation, add excess of 0.00359 N Na2S2O3 (5 10 ml).
移取50毫升上述溶液于200毫升于锥形瓶中,如果取样量较少,用水稀释到50 毫升,加入10 ml 4 N H2SO4,1 ml KI, 1滴钼酸胺溶液和50毫升水,边搅拌边加入过量的0.00359 N Na2S2O3溶液(5 10 ml)。
-
According to the regular condensation polymerization principle, a certain amount of amino terminated polyether D230 and a certain amount of divinyl three amine are mixed uniformly by water, and then a certain amount of hexanedioic acid is added in and stirred for dissolving.
本发明属于工业水处理技术领域,具体涉及一种抑制水中二氧化硅/硅酸盐垢沉积的非离子型聚合物及其制备方法,该聚合物是一种含具有醚键、仲胺键、肽键结构的非离子型共聚物,具体为己二酸/端氨基聚醚/二乙烯三胺共聚物,按照常规的缩聚反应原理,首先用水将一定量的端氨基聚醚D230和一定量的二乙烯三胺混合均匀,然后加入一定量的己二酸并搅拌使其溶解。
-
The results indicate that the precipitation rate of phosphoric acid is larger than 99% under the conditions of 2530 ℃, the mole ratio of trimeric cyanamide to phosphoric acid 21, two-step precipitation by trimeric cyanamide divided into two portions and separately stirring 60 min.
研究结果表明:在25~30 ℃、三聚氰胺与磷酸摩尔比为21、三聚氰胺分成两份进行两步沉淀、各搅拌60 min为三聚氰胺沉淀磷酸的最佳条件,在此条件下磷酸沉淀率大于99%;在磷酸三聚氰胺沉淀中夹带的氯化钙在固液质量比15、温度40 ℃和搅拌60 min下用水反复洗涤3次后可被完全去除;再将净化后的磷酸三聚氰胺与氨水反应,制得了符合GB 10205—2001标准的磷酸一铵和磷酸二铵产品。
-
The invention relates to a synthesis method of N-acetylaminoglucose, which comprises dissolving D-glucosamine hydrochlorate and alcohol at the mass ratio of 2-2.5:100, adjusting the pH value of the solution to 9-10, filtering, taking the filter liquor, mixing and adding acetic anhydride at the 50-60wt% amount of D-glucosamine hydrochlorate, mixing and reacting for 2h, using absolute ethyl alcohol to recrystallizing, filtering and recrystallizing via water, to obtain rod-shape food grade N-acetylaminoglucose.
本发明涉及一种N-乙酰氨基葡萄糖的合成方法。该方法的具体步骤为:将D-葡萄糖胺盐酸盐和乙醇按2~2.5∶100的质量比溶于水中,调节该溶液的pH值为9~10;过滤,取滤液,搅拌下加入乙酸酐,其加入量为原料D-葡萄糖胺盐酸盐量的50~60wt%;搅拌反应2小时后,用无水乙醇进行重结晶;过滤,晶体再用水重结晶,得棒状食品级N-乙酰氨基葡萄糖。
- 更多网络解释与用水搅拌相关的网络解释 [注:此内容来源于网络,仅供参考]
-
Glutaric dialdehyde:戊二醛
(6)2%(质量分数)戊二醛(Glutaric Dialdehyde)溶液的配制在 250g 的 20%戊二醛溶液中加入注射用水至 2 500g,再加入 1.3g 缓冲剂并搅拌均匀. 此溶液不必过滤,但须在 24h 内使用. (三)主要消毒和灭菌方法 1.干热法 是在干燥空气中加热处理的方法,
-
blunge:用水搅拌
blunger 圆筒拌和机 | blunge 用水搅拌 | force plunger 模塞;阳模