查询词典 sodium carbonate

The effect of sodium carbonate on the corrosion inhibition of aluminum alloy in sodium chloride solution was investigated by SEM and electrochemical means.

应用电化学实验方法和扫描电子显微镜研究了碳酸钠在氯化钠溶液中时铝合金的缓蚀作用。

In this paper, the reactive theory of the preparation of sodium hypophosphite by one-stage process taking phosphor ,calcium oxide and sodium carbonate as raw material is introduced.

详细研究了以黄磷、氧化钙和碳酸钠为原料，采用一步法制备次磷酸钠的最佳条件和有关工艺。

The influence of synthesis parameters on the purity of sodium cyanate was investigated,such as the mole ratio of urea to anhydrous sodium carbonate,reaction time and reaction temperature.

研究了尿素/无水碳酸钠物质的量比、反应时间和反应温度等反应条件对氰酸钠产品纯度的影响。

Its steps include these:(1) purification of WPA;(2) neutralization reaction between purified WPA and sodium carbonate for the salt mixture of disodium hydrogen phosphate and monometallic sodium orthophosphate;(3) adjustment of the mixture's neutralizing degree with additive acid or alkali;(4) quick separation of crystal with additive organic solvent under continue stir;(5) polymerization of crystal under the high temperature for the high quality product of STPP.

其步骤为：(1)湿法磷酸净化；(2)净化后的磷酸与碳酸钠中和反应生成磷酸一氢钠和磷酸二氢钠混合盐溶液；(3)用酸、碱调节确定该混合盐溶液的中和度；(4)加入有机溶剂，通过不断地搅拌使晶体快速析出；(5)晶体经高温聚合，生成高品质的三聚磷酸钠。

A process for producing sodium carbonate from sodium chloride and ammonia and carbon dioxide.

由氯化钠、氨和二氧化碳生成碳酸钠的过程。

The effects of citric acid,sodium chloride and sodium carbonate adding on color-protection of pumpkin noodle were studied.

结果表明：单独添加柠檬酸对南瓜面条制品的色泽无明显的增色作用，同时在光照条件下也无护色效果。

Let citric acid react with sodium carbonate to obtain the product of sodium citrate in the end.

将柠檬酸与碳酸钠进行中和反应，即得到柠檬酸钠。

The reaction processes of preparing sodium diacetate from acetic acid and sodium carbonate are studied.

本文对乙酸—纯碱法制备双乙酸钠反应过程进行了研究。

Similarly, if the gypsum is replaced by sodium sulfate, the sulphur and sodium carbonate solution can be obtained.

同样的原理，如果将石膏更换为芒硝，可得到硫和碳酸钠溶液，进一步加工可得纯碱。

One of the most widely employed materials of the chemical industry, it is used in manufacturing chlorine, caustic soda, sodium carbonate , bi carbonate of soda, soap, and chlorine bleach, as well as in ceramic glazes, metallurgy, food preservation, curing of hides, road de-icing, water softening, photography, and many consumer products, including mineral waters, mouthwashes, and table salt itself.

氯化钠是化学工业最广泛使用的材料之一，用于制造氯、氢氧化钠、碳酸钠、碳酸氢钠、含氯聚合物，另外在陶瓷釉、冶金、食物保存、皮肤消毒、道路除冰、水的软化、照相及许多消费商品、调味用。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。