查询词典 sodium

Process:① the platinum wire dipped in concentrated hydrochloric acid to colorless colorless flame on the ignition;②sample in the colorless flame ignition, to observe the flame color (if test potassium cobalt glass through observation, because in most cases need to be used when the system of potassium sodium, potassium solution, therefore often contain sodium, and sodium yellow flame color reaction, a small amount of yellow and purple, respectively, can not come out).

3操作过程：①将铂丝蘸浓盐酸在无色火焰上灼烧至无色；②蘸取试样在无色火焰上灼烧，观察火焰颜色(若检验钾要透过钴玻璃观察，因为大多数情况下制钾时需要用到钠，因此钾离子溶液中常含有钠离子，而钠的焰色反应为黄色，黄色与少量的紫色无法分别出来)。

The oil shale ash is disintegrated into fine powder less than 150 eye to be calcined at a certain temperature, then sulfuric acid solution is added for performing acid dipping, after solid-liquid separation and solid residue removal, aluminum sulfate solution is obtained and is then filtered after sodium hydroxide solution is added in, further metallic ions as Ca2 , Mg2 , Fe3 , Fe2 and the like are filtered from the solution, thereby sodium aluminate solution is obtained, gas of carbon dioxide is communicated into the sodium aluminate solution to obtain aluminum hydroxide sediment, and after drying and calcining aluminum hydroxide powder is obtained.

将油页岩灰渣粉碎至＜150目的细粉，在一定温度下煅烧，加入硫酸溶液进行酸浸，固液分离，去除固体残渣，得硫酸铝滤液，加氢氧化钠溶液后过滤，滤除溶液中的Ca 2 、Mg 2 、Fe 3 、Fe 2 等金属离子，得偏铝酸钠溶液，向偏铝酸钠溶液通入二氧化碳气体，得到氢氧化铝沉淀，经烘干、煅烧得到氢氧化铝粉末。

In addition, the admixtures of D-sodium gluconate and glycin, D-sodium gluconate and ethanolamine have good inhibiting effect, too. 2. Corrosion inhibition and mechanism of reinforcing steel by D-sodium gluconate has been studied.

探明D—葡萄糖酸钠的缓蚀效果及缓蚀机理 D—葡萄糖酸钠在含有Cl~-的模拟混凝土孔隙液中对钢筋的缓蚀作用主要通过抑制钢筋腐蚀的阳极反应。

Typical precipitatingagents that have been used include sodium or calcium hydroxide , iron sulfide , sodium dimethyldithiocarbamate, sodium hydrosulfite , and starch xanthate.

典型的沉淀已使用的药物包括钠或氢氧化钙，铁硫醚，二甲基二钠，亚硫酸钠，淀粉黄原酸酯。

Light calcium carbonate, ACC, nanometer superfine calcium carbonate, magnesium carbonate, trihydrate alumina, silica white, strontium carbonate, barium carbonate, potassium carbonate, rubberlith, rongalite, permanent white, lemery, microspheroidal catalyst, magnesium hydrate, bluestone, nickel salt, sodium molybdate, sodium chloride, potassium chloride, calcium chloride, sodium fluoride, cryolite, iron oxide red, lithium hydroxide, zirconium hydroxide, calcium phosphate, sulfur, etc.

轻质碳酸钙、活性碳酸钙、纳米级超细碳酸钙、碳酸镁、氢氧化铝、白炭黑、碳酸锶、碳酸钡、碳酸钾、立德粉、保险粉、硫酸钡、硫酸钾、微球催化剂、氢氧化镁、硫酸铜、硫酸镍、镍酸铵、钼酸钠、氯化钠、氯化钾、氯化钙、氟化钠、冰晶石、氧化铁红、氢氧化锂、氢氧化镍、氢氧化锆、磷酸钙、硫磺等。

The OD of sodium alginate enhanced along with the increasing amounts of added sodium periodates. The molecular weights of sodium alginate were also declined as reaction temperature rising.

结果证实氧化温度上升时，氧化产物的相对分子质量显著降低；增加氧化剂量可获得较高氧化度的氧化海藻酸钠，但同时也降低了氧化产物的相对分子质量。

The paper involved two parts: Part 1: A two-chambered microbial fuel cell was constructed with high-concentration sodium acetate as fuel in the anode. The influence of different electron acceptors in the cathode, external resistance value, pH value and concentration of sodium acetate on electricity generation in MFC was investigated. The result showed that the maximum power density of 294.72 mW/m2 and the coulombic efficiency of 25.87% was achieved at sodium acetate concentration of 6.46 g/L, pH 7.0, external resistance 500Ωin the anode and when using potassium permanganate as electron acceptor in the cathode.

全文分为两个部分：第一部分：以乙酸钠为阳极原料构建双室微生物燃料电池，研究不同阴极受体、外接电阻、乙酸钠浓度和pH等因素对电池产电性能的影响，研究结果表明：在500mL的阴阳极反应体系中，选用乙酸钠作为阳极底物，质量浓度为6.46 g/L， pH 7.0，接入500Ω外电阻，阴极电子受体选择高锰酸钾的情况下，微生物燃料电池产电性能最好，最大电功率密度达到294.72 mW/m2，库伦效率能达到25.87%。

They are hydrogen peroxide, ammonium persulfate, sodium persulfate, chlorinated polypropylene, chloridized EVA, garox mek, carbon dioxide, hydrogen, sodium carboxymethyl cellulose, carboxymethyl amylum sodium, feed additive, auric salt and silver salt series, tin salt series, tin dichloride, silver nitrate, fireworks raw materials, spheroid form nickel hydroxide, refined sulfuric acid, battery sulfuric acid, ultramicro fine powder, compound fertilizer, 40% multiple sulfur suspending agent, 40% sulfur-tricyclazole suspending agent, 40% sulfur-multiple-trideflocculant, 20% pemiro-dichlor suspending agent, high panniculus adiposus and so on.

主要产品有：过氧化氢、过硫酸铵、过硫酸钠、氯化聚丙烯、氯化EVA 、过氧化甲乙酮、二氧化碳、氢气、羧甲基纤维素钠、羧甲基淀粉钠、饲料添加剂、金、银盐系列、锡盐系列、氯化亚锡、硝酸银、烟花原料、球形氢氧化镍、精制硫酸、电池硫酸、超微细粉体、复合肥、40%多硫悬浮剂、40%硫·三环唑悬浮剂、40%硫·多·三悬浮剂、20%吡嘧·二氯悬浮剂、高脂膜等10个系列百多个品种、规格产品。

The calculated results show that activity coefficients of NiCO3 in sodium sulphate solutions are less than that in sodium chloride solutions, and the solubilities in sodium sulphate solutions are larger.

估算结果表明，与氯化钠溶液体系相比，碳酸镍在硫酸钠溶液体系中的活度系数较小，因而溶解度较大。

Common bleaching agents are hydrogen peroxide, sodium hypochlorite, sodium chlorite and sodium perborate.

常用的漂白剂有过氧化氢、次氯酸纲、氯化钠以及过硼酸钠。

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％。