Desalting water medium containing low concentration of acid or base, they have more rubber on the corrosion.
脱盐水介质中含有低浓度的酸或碱,它们对橡胶有较大的腐蚀性。
In the medium of nitric acid, the trace chloride in the cement concrete was determined by turbidimetry.
在硝酸介质中,通过比浊法测定水泥混凝土中微量氯化物。
Should try to avoid acid-base media used interchangeably (except in and reaction medium) in order to avoid shortening life expectancy.
应尽量避免酸碱介质交替使用(除中和反应介质),以免缩短寿命。
LCO promoter having proper acid sites and stable medium pore distributions by adopting the pore improving method was developed for heavy oil catalytic cracking.
采用添加孔改进剂的方法,开发了具有适当的酸中心分布、稳定的中孔分布的多产柴油重油裂化助剂。
The effects of reflux time, temperature, amount of adsorbent on the efficiency of removal of Cl - and the microwave digestion conditions, acid medium, catalysts on the COD determination are discussed.
研究了回流除氯时间、温度、吸附剂用量对去氯率的影响,以及微波消解条件、酸介质、催化剂对COD测定的影响。
The conditions of determination are that we used cesium nitrate as eliminated electrolytic reagent in the acid medium and applied the subsensitive line as absorption line.
探讨了在酸性介质中以硝酸铯作消电离剂,应用次灵敏线作为吸收线来测定常量钾的最佳条件、线性相关系数。
A new technology of wet method for synthesis of magnesium stearate by saponification of stearic acid with fleshly formed magnesium hydroxide in aqueous medium is described.
介绍一种在水介质中由硬脂酸与新生成的氢氧化镁进行皂化反应合成硬脂酸镁的湿法新工艺。
The yields of acid hydrocarbon belong to medium to low abundance compared with those of the subaerial basins and the East China Sea shelf basin, and show weak geochemical field features.
酸解烃指标与整个中国陆上盆地和东海陆架盆地相比,属中等偏低丰度,呈现弱地球化学场特征。
And also, detailed effects of acid medium and coexist elements in atomic absorption method are discussed.
并探讨了方法中酸性介质、共存元素的影响等问题。
Thus theoretically, weakly acidic drugs (eg, aspirin) are more readily absorbed from an acid medium (stomach) than are weak bases (eg, quinidine).
因此,从理论上讲,弱酸性药物(阿司匹林)酸性介质中(腔)弱碱性药物(奎宁)易吸收。
The ferrous oxalate with crystal water was prepared with ferrous ammonium sulfate and oxalic acid in acid medium.
采用硫酸亚铁铵和草酸溶液在酸性介质条件下合成含有结晶水的草酸亚铁。
The kaolinite tonstein in the seam5# is formed by acidic ash alterated in the acid medium in peat bog in tongchuan district.
铜川矿区5#煤层中的高岭石泥岩夹矸是由酸性火山灰在近地表的成煤条件下经酸性水淋滤、蚀变而成的。
Applicable to weak base, weak acid, oli, especially resistant to abrasive medium.
适用于弱碱,弱酸,油类,尤其能耐研磨性介质。
If best analysing condition of each element is deter mined, As, Sb, Bi, Hg and Se in agricultural geology samples can be determined continuously in sulpho acid medium.
确定了各元素的最佳分析条件,可在王水介质中连续测定农业地质调查样品中的砷、锑、铋、汞、硒。
The experimental condition of acetylating method for determining priminary alcohol and secondary alcohol catalyzed by perchloric acid in the medium of analytically pure ethylacetate is proposed.
提出了以高氯酸为催化剂,分析纯乙酸乙酯为介质,乙酰化法测定伯、仲醇的实验条件,实现了对经典方法的改进,简化了操作程。
Although perovskite and non platinum anode catalysts are less cost, their electro catalysis activities in methanol oxidation and stabilities in acid medium have to be improved for further work.
铂基钙钛矿类和非铂基催化剂的成本低,但需要进一步解决在酸性介质中的寿命短和活性低的问题。
The stainless steel stop valves of this series are used in pipings in chemical induxtry to stop (or allow)medium flowing such as nitric acid, acetic acid, etc.
氟塑料全衬隔膜阀系列产品,是各类隔膜阀中应用最为广泛的一种形式,主要用来切断(或接通)管路介质。
The effect of some common carboxylic acids as well as sulphuric acid concentration on thickness and hardness of medium temperature anodizing film of Al alloy was investigated.
研究了一些常见的羧酸以及硫酸浓度等对铝合金中温阳极氧化膜的厚度和硬度的影响。
The method was based on the catalytic effect of nitrite ion on the oxidation fading reaction of methyl orange and bright green with potassium bromate as oxidant in phosphoric acid medium.
在磷酸介质中,利用亚硝酸根催化溴酸钾氧化亮绿和甲基橙褪色的指示反应,建立催化光度法测定痕量亚硝酸根的新方法。
To avoid heavy corrosion medium long-term immersion floor paint film, the proliferation of lightly corrosive acid and alkali, etc.
避免重腐蚀介质长期浸泡地板漆膜,扩散轻率腐蚀性酸和碱等,请及时清洁酸和碱介质。
In organic acid medium the adsorption was more complex.
在有机酸介质中,吸附作用比较复杂。
The optimal conditions for synthesis of alkali green 4 are reported, including the carbamide and zinc chloride as catalyst, chloranil and bichrome as oxidation agent in the acetic acid medium.
报道了合成碱性绿-4的最佳条件:在醋酸介质中,尿素、氯化锌为催化剂,四氯苯醌和重铬酸钾为氧化剂;
In acid medium, proteins can react with azocarmine B (ABX) and form ion-association complexes and enhance the weak resonance Rayleigh scattering (RRS) of ABX.
在酸性条件下,蛋白质与偶氮胭脂红b (abx)结合形成离子缔合物,使ABX微弱的共振瑞利散射(RRS)急剧增强。
A new spectrophotometric method for the determination of trace nitrite was studied. The method is based on the diazo - reaction of methylene violet with nitrite in hydrochloric acid medium.
研究了在盐酸介质中微量亚硝酸根与亚甲紫发生的重氮化反应,建立了测定微量亚硝酸根的新方法。
It is based on the iodine catalysed discoloring reaction of malachite green oxidized by chloramine t in hydrochloric acid medium.
基于在稀盐酸介质中,碘催化氯胺T氧化孔雀绿而使其褪色的反应,建立了测定痕量碘的新方法。
The optimum medium for Ganoderic acid production was obtained by orthogonal test.
正交优化实验确定了灵芝酸深层发酵的最佳培养基组成。
Objective To find out the application value of blood sugar, glycosylation hematocyanin and D- 3 hydroxybutyric acid in mild, medium and severe type of diabetes.
目的了解血糖、糖化血清蛋白、D-3羟丁酸在轻、中、重度糖尿病患者中的应用价值情况。
It's found that in sulphuric acid medium, sodium diphenylamine sulfonate can be oxidized by hydrogen peroxide and produce two benzene allied purple.
在硫酸介质中,二苯胺磺酸钠可被过氧化氢氧化生成二苯联苯胺磺酸紫。
A persulphate oxidation method in acid medium for decomposition and analysis of dissolved total phosphorus in seawater was proposed.
依此,建立酸性过硫酸盐氧化法分解测定海水中溶解态总磷的方法。
A persulphate oxidation method in acid medium for decomposition and analysis of dissolved total phosphorus in seawater was proposed.
依此,建立酸性过硫酸盐氧化法分解测定海水中溶解态总磷的方法。
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