说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 词典 -> 三偏磷酸钠
1)  sodium trimetaphosphate
三偏磷酸钠
1.
With the reaction of starches and sodium trimetaphosphate,swelling of cross linked starch granules was controlled successfully through different degree of substitution.
利用淀粉与三偏磷酸钠的交联反应 ,通过控制交联反应程度 ,成功地控制了交联淀粉颗粒膨胀程度并使其停留在不同的溶胀阶段 ,详细研究了处在不同溶胀阶段交联淀粉颗粒的结构特征和变化趋势 ,揭示了三偏磷酸钠交联玉米淀粉颗粒的膨胀历程及结构特征 ,即随着淀粉颗粒交联程度的降低 ,颗粒的膨胀历程由中心脐点处爆裂膨胀方式转化为颗粒整体向外的均匀膨胀方式 。
2.
A method for preparation of sodium trimetaphosphate and the optimum process conditions are introduced.
介绍了一种制备高纯度三偏磷酸钠的方法,给出了最佳工艺条件;同时作为磷酸化试剂用于制备Vc聚磷酸酯,制备出了高质量的Vc聚磷酸酯。
3.
Modified waxy rice starch was prepared by using sodium trimetaphosphate for cross-linking reaction and Octenyl Succinate for esterification reaction.
以糯米为原料,采用三偏磷酸钠为交联剂,辛烯基琥珀酸酐为酯化剂,对糯米淀粉进行双重化学变性,以峰值黏度和取代度作为评价指标,研究5个反应因素(交联剂用量、交联pH值、交联温度、交联时间、酯化剂用量)对峰值黏度和取代度的影响,结果双重变性淀粉的峰值黏度和取代度均比原淀粉有所提高。
2)  Trisodium trimetaphosphate
三偏磷酸三钠
3)  sodium metaphosphate
偏磷酸钠
1.
A method for the determination of CaF2 in fluorspar samples by X-ray fluorescence spectrometry with sodium metaphosphate as flux is proposed.
采用偏磷酸钠作熔剂制备萤石熔融片,用波长色散X射线荧光光谱法测定萤石中的氟化钙。
4)  industrial sodium trimetaphosphate
工业级三偏磷酸钠
1.
Study on determination method for industrial sodium trimetaphosphate content
工业级三偏磷酸钠含量测定方法的研究
5)  trisodium phosphate
磷酸三钠
1.
Experimental research of chlorinated trisodium phosphate synthesis;
合成氯化磷酸三钠的实验研究
2.
The preservation effects of lactic acid, acidified sodium chlorite (ASC), cetylpyridinium chloride (CPC) and trisodium phosphate on cooled pork were studied in this paper.
比较了用乳酸、酸化亚氯酸钠(ASC)、氯化十六烷基吡啶(CPC)及磷酸三钠(TSP)配制的保鲜液对冷却猪肉的保鲜效果。
3.
A study was undertaken to determine the effectiveness of trisodium phosphate(TSP)in wash water in the inactivation of Salmonella montevideo on the surface and in core tissue of unwashed, mature-green tomatoes.
研究了磷酸三钠溶液(TSP)对成熟绿种番茄表皮上和梗洼木栓化核组织中的沙门氏菌S。
6)  sodium triphosphate
三磷酸钠
1.
Experiments indicated that cerium ion which could not emit fluorescence was reduced to cerium ion which could emit characteristic fluorescence by ascorbic acid in water solution, while sodium triphosphate was added the fluorescence intensity of the system could be greatly enhanced.
实验发现,抗坏血酸在水溶液中能将无荧光的铈 离子还原成能发射特征荧光的铈 离子,加入三磷酸钠,可使体系的荧光强度大大增强,由此建立了间接灵敏测定抗坏血酸的方法。
补充资料:三偏磷酸钠
分子式:Na3P3O9  
CAS号:

性质:白色粉状结晶。密度2.54g/cm3,30℃以上在水中溶解度大于30%,35℃以上无稳定的水合物。(NaPO3)3·6H2O为无色三斜结晶。密度1.786g/cm3。熔点53℃。溶于水。不溶于醇。加热至50℃时失去6个结晶水变成无水物。1%溶液呈中性,在30~90℃和相对湿度50%~100%的条件下吸湿性小,比热容0.84kJ/(g·℃),碱性水解生成五钠。磷酸二氢钠加热至95℃时失去2个结晶水成无水物,继续加热至190~204℃转化成酸式焦磷酸钠,在204~244℃时,生成偏磷酸钠,进一步加热至500℃时,熔融,经缓慢冷却得三偏磷酸钠。用于水处理。用作洗涤剂的组分。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条