1.The effects of calcium hydroxide purity,sodium hydroxide concentration,and chlorination temperature on effective chlorine content of calcium hypochlorite have been tested.The results indicate that the higher calcium hydroxide purity is,the higher effective chlorine content of calcium hypochlorite is,that when sodium hydroxide concentration is 30%,and chlorination temperature is 20℃,the effective chlorine content of calcium hypochlorite is the highest.
测试了氢氧化钙纯度、烧碱浓度和氯化温度对漂粉精有效氯含量的影响.结果表明，氢氧化钙的纯度越高，漂粉精的有效氯含量越高；烧碱浓度为30％、氯化温度为20℃时，漂粉精的有效氯含量最高.
2.Abstract: The effects of calcium hydroxide purity,sodium hydroxide concentration,and chlorination temperature on effective chlorine content of calcium hypochlorite have been tested.The results indicate that the higher calcium hydroxide purity is,the higher effective chlorine content of calcium hypochlorite is,that when sodium hydroxide concentration is 30%,and chlorination temperature is 20℃,the effective chlorine content of calcium hypochlorite is the highest.
文摘:测试了氢氧化钙纯度、烧碱浓度和氯化温度对漂粉精有效氯含量的影响.结果表明，氢氧化钙的纯度越高，漂粉精的有效氯含量越高；烧碱浓度为30％、氯化温度为20℃时，漂粉精的有效氯含量最高.
3.Preparation of new antiseptic sodium diacetate from sodium hydroxide andacetic acid is discussed in this paper. The reaction conditions are determined. The molar ratio of sodium hydroxide to acetic acid is 1∶2.06-1∶2.08,reaction temperature is 100-120℃,and evapouring temperature is 130-138℃,and reaction time is 3h.
研究了以冰醋酸和氢氧化钠为原料合成新型防腐剂双乙酸钠的反应条件,结论是:n(醋酸)∶n(氢氧化钠)=2.04-2.08,反应温度是100℃-120℃,蒸发温度是130℃-138℃,反应时间3h,双乙酸钠的产率为95.1%,产品质量达到FAO/WHO标准.
4.Abstract: The effects of sodium hydroxide concentration and chlorination temperature on effective chlorine content of calcium hypochlorite were tested.The effects of mesh number of standard sieve on effective chlorine content of calcium hypochlorite were tested.The retrieval technology of effective chlorine in mother liquor of calcium hypochlorite was researched,and the effects of cycle number on effective chlorine content of calcium hypochlorite were tested.The results indicate that when sodium hydroxide concentration is 333.3 g/L,and chlorination temperature is 20 ℃,the effective chlorine content of calcium hypochlorite is highest,that when mesh number of standard sieve is 180 mesh,the effective chlorine content of calcium hypochlorite is higher, but the passing sieve rate is not too low, that the cycle number has no remarkable effect on the effective chlorine content of calcium hypochlorite,and the effective chlorine content of calcium hypochlorite is basically above 80%.
文摘:测试了烧碱质量分数和氯化温度对漂粉精有效氯含量的影响，测试了分盐用标准筛目数对漂粉精有效氯含量和过筛率的影响.研究了漂粉精母液中有效氯的回用工艺流程，并测试了循环次数对漂粉精有效氯含量的影响.结果表明，烧碱质量分数为25％、氯化温度为20℃时，漂粉精的有效氯含量最高；标准筛目数为180目时，漂粉精的有效氯含量较高而过筛率不太低；循环次数对漂粉精有效氯含量没有显著影响，并且漂粉精有效氯含量基本上可以达到80％以上.
5.The effects of sodium hydroxide concentration and chlorination temperature on effective chlorine content of calcium hypochlorite were tested.The effects of mesh number of standard sieve on effective chlorine content of calcium hypochlorite were tested.The retrieval technology of effective chlorine in mother liquor of calcium hypochlorite was researched,and the effects of cycle number on effective chlorine content of calcium hypochlorite were tested.The results indicate that when sodium hydroxide concentration is 333.3 g/L,and chlorination temperature is 20 ℃,the effective chlorine content of calcium hypochlorite is highest,that when mesh number of standard sieve is 180 mesh,the effective chlorine content of calcium hypochlorite is higher, but the passing sieve rate is not too low, that the cycle number has no remarkable effect on the effective chlorine content of calcium hypochlorite,and the effective chlorine content of calcium hypochlorite is basically above 80%.
测试了烧碱质量分数和氯化温度对漂粉精有效氯含量的影响，测试了分盐用标准筛目数对漂粉精有效氯含量和过筛率的影响.研究了漂粉精母液中有效氯的回用工艺流程，并测试了循环次数对漂粉精有效氯含量的影响.结果表明，烧碱质量分数为25％、氯化温度为20℃时，漂粉精的有效氯含量最高；标准筛目数为180目时，漂粉精的有效氯含量较高而过筛率不太低；循环次数对漂粉精有效氯含量没有显著影响，并且漂粉精有效氯含量基本上可以达到80％以上.
6.Definition : Soft Soap is soap made by the interaction of potassium hydroxide or sodium hydroxide with a suitable vegetable oil or oils or with fatty acids derived therefrom.
定义:软皂是一种由氢氧化钾或氢氧化钠和适合的植物油或油或其生产的脂肪酸作用生成的肥皂。
7.This paper carried on the compared test of seven species buffers,which is ammonium hydroxide,ammonium bicarbonate,magnesium oxide,calcium oxide,sodium hydroxide and ethanolamine,to study the effect of them on the efficiency of buffers and properties of pulp in the high yield ammonium sulfite pulping of tobacco.
本文对氨水、碳酸氢铵、氧化镁、氧化钙、氢氧化钠、尿素和乙醇胺等7种缓冲剂(缓蚀剂)在烟杆亚硫酸铵(亚铵)高得率制浆中的缓冲效果和对浆料性能的影响进行了对比试验。
8.This paper mainly discussed the technics course and condition of CTP,taking cyclohexanol as raw material and taking 120~# petrol as sowent. The rubber antiscroching agent was synthesized with phthalimide and sodium hydroxide to produce sodium irmine.
讨论了以环己醇为原料,以120#汽油为溶剂,用酞酰亚胺与氢氧化钠生成亚胺钠的方法合成橡胶防焦剂CTP的工艺过程及工艺条件。
9.The best equation was developed with the SECV= 0.6306,1-VR=0.9987,which eliminated the influence of moisture,sodium hydroxide,sodium acetate and protein.
该方法对水分、氢氧化钠、乙酸钠、蛋白质对脱乙酰度测定的影响进行了校正,最后建立的最优近红外测定方程的交叉验证标准误差(SECV)为0.6306,交叉验证相关系数(1-VR)为0.9987。
10.The adsorptive capacity of titanium silicate to Cs ion was studied, as shown by our experiments the best synthetic step of titanium silicate sodium as follows: After 3mL tetrabutylorthotitanate and 1mL tetraethoxysilane(TEOS) are mixed, join 3mol/L sodium hydroxide 4mL, a small amount of structural template and 0.5 mL isopropyl alcoholc, and get the white precipitate evenly.
钛硅酸钠的最佳合成步骤为:3mL钛酸正丁酯和1mL正硅酸乙酯混合后,加入3mol/L的NaOH4mL,再加入0.5mL醇和少量的模板剂,搅拌均匀得到白色沉淀物。
