查询词典 sodium

The results indicate that sodium benzoate, ammonium benzoate, cinnamic acid inhibited anodic process significantly. Pure sodium tungstate was less effective.

结果表明：苯甲酸钠、苯甲酸铵、肉桂酸对DI材的阳极过程有明显的抑制作用；单纯的钨酸钠对DI材的缓蚀效果不佳。

The invention uses the industry byproduct in production of sulfonation-process phenol or the byproduct (Na2SO3 content is 60-85percent) in production of p-cresol and sodium hydrosulfite to produce the aliphatic high range water reducer and takes acetone, formaldehyde, industry byproduct, sulphite or sodium pyrosulfite as raw materials and then sulfonation and condensation reactions are carried out in aqueous medium, the reactant weight ratio is acetone: formaldehyde: sulphite plus industry byproduct: water is equal to 1:2.5-4.5:1.5-2.6:4.0-6.0, the mass concentration of the condensation compound obtained is 30-42 percent, and the viscosity thereof is 20-100m.

本发明利用磺化法苯酚生产中的工业副产品，或者对甲酚和保险粉生产过程中副产品(Na 2 SO 3 含量在60～85％)生产脂肪族高效减水剂，采用丙酮、甲醛、工业副产物、亚硫酸盐和或焦亚硫酸钠作为原材料，在水介质中进行磺化和缩合反应，反应物的质量比为丙酮∶甲醛∶亚硫酸盐副产品∶水＝1∶2.5～4.5∶1.5～2.6∶4.0～6.0，所得到的缩合物的质量浓度为30～42％，粘度为20～100m。

The materials are gold mine of low sulfur content, calcine or gold contain abatement. Cyanogens lixiviant is alkaline thiourea, stabilizer is sodium sulphite or sodium silicate, they constitute high stability alkaline thiourea system, and bland oxidizing agent is potassium ferricyanide with moderate electric potential during sunking process.

本发明以低硫含量的金矿、焙砂或含金废料为原料，以碱性硫脲为无毒的代氰浸出剂，以亚硫酸钠或硅酸钠为稳定剂，组成高稳定性碱性硫脲体系，浸出过程中以具有适中电势的铁氰化钾为温和氧化剂。

In accordance with the market demand of sodium sulphide at home and abroad in recent years,a new product, the high purity white sodium sulphide crystal with concentration of 45% Na_2S was prepared.

针对近几年国内外硫化碱市场需求，研制出了一种硫化钠质量分数为45%左右的白色高纯结晶硫化钠新产品。

Main: Sodium Sulfate 200,000 tons, sodium sulphide 20,000 tons, alkaline protease family of 15,000 tons.

主营：元明粉 20 万吨，硫化钠 2 万吨，碱性蛋白酶系列 1.5 万吨。

In the test,the high purity white sodium sulphide crystal with concentration of 45% Na_(2)S taken as raw material,anhydrous sodium sulfide is obtained by drying it in vacuum.

高纯度的无水硫化钠是合成高性能特种工程塑料聚苯硫醚的优质原料。

When the charge formula among concentrate, sodium carbonate and coal powder is 100:50:10, the temperature is 980℃, time is 60 min, the direct recovery rates of main metals are that 92.29% Pb, 79.82%Sb and 84.94%Ag, the slag ratio of metals for Pb, Sb, Ag, In, Zn, Cu and Fe are 5.00%, 3.21%, 8.97%, 69.76%, 95.28%, 78.00% and 87.74% respectively, the grade of sodium sulphide in the slag is 52%, the slag ratio is 62.4%.

炉料配方为精矿：纯碱：煤粉＝100：50：10；温度为980℃，时间为60 min时，各主要金属直收率分别为：Pb 92.29、Sb 79.82、Ag 84.94，金属入渣率分别为：Pb 5.00、Sb 3.21、Ag 8.97、In 69.76、Zn 95.28、Cu 78.00、Fe 87.74，熔炼渣中硫化钠品位为52%，渣率为62.4%。

According to the experiment results, the solid-liquid interface tension between NiCO3 and sodium sulphate solution is larger than that between NiCO3 and sodium chloride solution.

结果表明，碳酸镍在硫酸钠溶液体系中的固–液界面张力较大，微小晶粒在硫酸钠溶液体系中的溶解度也较大。

The solidify liquid was consisted of 5% sodium chondroitin sulphate, 12% sodium suecinate and 83% water.

聚甲基丙烯酸甲酯辅强组，15只／组：分别于术后3，6，12周取材，每个时间点5只／组。

In the process of ion exchange membrane electrodialysis with three compartments, sodium lactate was converted into lactic acid and sodium sulphate was obtained by adding sulphuric acid.

在离子交换膜电渗析从乳酸钠制备乳酸中，利用三室的电渗析器在外加硫酸的条件下将乳酸钠转化为乳酸，同时得到硫酸钠。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。