研究了亚硝酸钠引发硝酸溶液中丙烯腈的聚合反应。
The polymerization of acrylonitrile in aqueous nitric acid solution with sodium nitrite as initiator has been studied.
本文报道了超声速度与硝酸溶液浓度、温度关系的测量工作。
This relation is significantly influenced by the temperature of the solution.
方法同样硝酸溶液中的金属样品分别放入不同的磁环境中,对比观察分析。
Methods: The metals in the same nitrieacid were put in different magnetic field and compared.
硝酸溶液(HNO3)是氧化性酸(去除材料表面的电子),它可以腐蚀材料。
Nitric acid solution (HNO3), is an oxidizing acid (depletes electron from the metal surface) which erodes the metal.
目前移印钢板的制作以使用添加保护剂的硝酸溶液和三氯化铁溶液进行腐蚀为主。
At present, the making of the pad to use Add protection of nitric acid and ferric chloride solution for corrosion.
摘要研究了二环己基18冠6(DCH18C6)-正辛醇从硝酸溶液和模拟高放废液中镅、钚、铀的萃取。
Abstract The extraction of americium, plutonium and uranium by dicyclohexano 18 crown 6(DCH18C6)/1 octanol from HNO 3 solution and simulated HLLW are studied.
通过进行25%氨水溶液腐蚀试验、10%硝酸溶液腐蚀试验和耐磨试验,测定了这种复合镀层的耐蚀性和耐磨性。
Corrosion resistance and wear resistance of the liquid microcapsule composite copper coating was evaluated by 25% ammonia, 10% HNO_3 corrosion testing, and wear testing.
这种现在被命名为高尔基染色法或者“高尔基浸渍法”的方法,包括在重铬酸钾和氨水中浸渍,使组织变硬,接着浸泡在硝酸银溶液中。
The method, now known as Golgi staining or Golgi impregnation, involves hardening of tissue in potassium bichromate and ammonia, followed by immersion in a silver nitrate solution.
最后他们把电极放在钠硝酸盐电极的溶液中进行沉淀。
Then they immerse this electrode in a potassium nitrate electrolyte solution.
通过打磨并在弱硝酸酒精溶液中蚀刻制备的样本显示出由缓慢冷却形成的交互层状的薄片结构。
Specimens prepared by polishing and etching in a weak solution of nitric acid and alcohol reveal the lamellar structure of alternating plates that forms on slow cooling.
本文提出了以氢化物与硝酸银反应为基础的在一份试样溶液中连续测定微量砷和铅的分光光度法。
The continuous determination of arsenic and lead in the solution of the same sample by spectrophotometry is described, based on the reaction between hydrides and silver nitrate.
硝酸酒精腐蚀检验:通过使用一系列的酸性或中性溶液检查磨削后零部件表面是否有裂痕或磨削烧伤。
NITAL ETCH : Process of checking surfaces of ground product for cracks or burns by use of a series of acids and neutralizers.
讨论了硝酸镁溶液再生时所采用的两种方法:沉降法和压滤法。
Two kinds of methods for the regeneration of magnesium nitrate solution are discussed, which are precipitation method and filter-press method.
由于铀溶液中的硝酸根对阴离子交换树脂具有较强的亲合力,相当低的硝酸根就足以干扰硫酸铀酰离子的吸附。
Nitrate of low concentration can interfere with adsorption of uranyl sulfate anion on anion-exchange resins because the anion-exchange resins have a stronger affinity for nitrate in uranium solution.
结果表明,BPA在纯水体系中直接光解很慢,但在碱性体系和硝酸根溶液中光解迅速,符合一级动力学反应。
BPA direct photodegradation was very slow in pure aquatic system; but was rapid in alkaline system and nitrate solutions according with first grade dynamic equation.
提出了溶液比重和硝酸铀酰与硝酸浓度的关系式。
Thus the relations between densities of the solution and concentrations of uranyl nitrate and nitric acid are provided for.
采用加入过量的硝酸银溶液,用原子吸收分光光度法测量剩余的银离子,间接测量氯含量。
By the addition of an excess of silver nitrate solution and the determination of surplus silver ions with AAS, the chlorine content is thus determined indirectly.
结果表明,在酸性条件下,硝酸盐溶液能满足原地浸出采铀工艺的要求。
It is indicated that in acid environment nitrate solution is able to satisfy the demand of in-situ leach of uranium completely.
给出了硝酸钠在纯二甲基亚砜及二甲基亚砜水溶液中溶解度曲线。
The solubility curve of sodium nitrate in pure dimethyl sulfoxide and in DMSO aqueous solution are given.
目的:观察硝酸甘油溶液湿敷对多巴胺引起局部组织损伤的影响。
Objective To observe the influence of glonoine solution wet packing in patients with local soft tissue injury induced by intravenous infusion of dopamine.
标准溶液也同样品一样加入相同量硝酸镧溶液。
The standard solution is added lanthanum nitrate solution as much as the sample.
用TTA萃取分离铀、锆时,TTA对锆的螯合作用很强,硝酸和盐酸的浓酸溶液并不能破坏它们之间的整合,即对锆的反萃取非常困难。
When TTA is used to extract zirconium in uranium, the combination of zirconium and TTA is very strong, the concentrated acid of nitric acid and hydrochloric acid can not destroy their combination.
研究了低合金钢-硝酸盐溶液体系的应力腐蚀行为。
The stress corrosion cracking (SCC) behaviour of low alloy steel in nitrate aqueous solution was investigated.
YG8硬质合金经稀硝酸水溶液化学侵蚀后,表面一定深度内的粘结相钴将被化学刻蚀掉,引起表层疏松。
Cobalt phase was chemically etched to certain depth beneath the surface and porous layer was formed after YG8 cemented carbide had been soaked in aqueous solution of dilute nitric acid.
结果表明,用此方法评估硝酸铵溶液热爆炸发生的临界值是合理的。
Results indicate that the evaluation of the critical value for the occurrence of thermal explosion of ammonium nitrate solution by this method is rational.
采用硫化铵溶液进行防腐试验。结果表明, 重铬酸钾加硝酸或冰醋酸的处理方法有很好的抗腐蚀效果。
The results show that the potassium bichromate plus nitric acid or glacial acetic acid has the best anti-corrosion effect.
喷料前溶液浓度对多孔粒状硝酸铵产品质量有一定影响。
The concentration of the solution before spraying has a certain effect on the product quality of porous ammonium nitrate granules.
喷料前溶液浓度对多孔粒状硝酸铵产品质量有一定影响。
The concentration of the solution before spraying has a certain effect on the product quality of porous ammonium nitrate granules.
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