弱酸

ruò suān
  • weak acid
弱酸弱酸
弱酸 [ruò suān]
  • [weak acid] 电离度不大的酸,如乙酸或碳酸

弱酸[ruò suān]
  1. 弱酸性艳红B的合成38℃的红色

    Synthesis of Weak Acid Red B

  2. 强酸和弱酸等体积混合后的PH值

    PH Value of Mixed Isovolumic Strong and Weak Acid

  3. 难溶弱酸盐在水中pH值及溶解度的计算

    Calculation of pH And Solubility of Indissoluble Salt in Water

  4. 强酸与弱酸混合溶液pH值计算方法的讨论

    The discussion on calculation of pH value in strong and weak acid mixed solution

  5. 极弱酸恒pH法测定条件的研究

    Studies on the Conditions for Determining Extra Weak Acids by the Constant pH Method

  6. 一元弱酸弱碱盐溶液的PH探讨

    Discussion on the PH in the Monobasic Weak - acid Weak - base Salt Solution

  7. 固定pH滴定法用于检测弱酸弱碱性药物的研究&Ⅰ.盐酸苯海拉明和盐酸阿米替林的测定

    PH-Fixed Titration to Weak Acidic or Weak Basic Drugs I. Determination of Amitriptyline and Diphenhydramine

  8. 电动胶束色谱中弱酸性化合物的柱上浓缩富集技术的研究弱酸性艳红B的合成

    On - Column Sample Stacking of Weakly Acidic Compounds in Micellar Electrokinetic Chromatography Synthesis of Weak Acid Red B

  9. 计算一元弱酸或弱碱溶液pH值的新公式

    A new equation for calculating the pH value of solutions of monoprotic weak acid or base

  10. 用pH玻璃电极法测定弱酸/碱的浓度常数

    Determination of concentration constants for weak acid or / and weak base by using pH glass electrode

  11. 模拟强碱滴定弱酸的VB程序及应用实例

    Simulate VB Program of Alkali Titrate Weak Acid and Its Practical Cases

  12. 溶液pH值和温度是方解石溶解度的最直接的控制因素,且方解石的溶解随pH值不同分别在强酸、弱酸和碱性介质中表现出不同的反应方式。

    The pH value and the temperature of solution is the main factors to control the solubility of calcite .

  13. 原位Pb污染土壤中Pb的存在形态表现为:残渣态可氧化态可还原态弱酸提取态。

    The speciation of Pb in the Pb contaminated soil were residual oxidizable reducible acid extractable .

  14. 报道一种水溶液中测定弱酸弱碱性药物的新型滴定分析方法&固定pH滴定法。

    A novel titration method in aqueous solution , fixed pH titration , for weakly acidic and basic drugs is presented .

  15. 主要功能:弱酸性能平衡油脂分泌,调节皮肤pH值,迅速收细,温和高效无刺激;

    Functions : Weak acidity can balance the oil is secreted , regulate skin pH , gently and high-efficient , without stimulation .

  16. 将PH值调节到3.5左右以降低弱酸的电离,并由此降低了弱酸的阴离子干扰。

    The PH value is buffered close to 3.5 which depress ionization of weak acid and , thus , interference from their anions .

  17. 二氧化硫浸出软锰矿①控制弱酸浸出终点PH值在5左右,可避免过多杂质被浸出;

    (!) Controlling the PH value of weak acid leaching terminal point at about 5 , so that redundant impurities will not be leached .

  18. 在阴极电泳涂装中,DM阳极隔膜是除去弱酸离子,保证电泳正常进行的特种分离膜。

    The DM anode membrane is a polymer membrane specifically designed to remove acetic in electrodeposition coating tanks .

  19. 该抗菌活性物质具有较好的热稳定性、pH稳定性,易溶于氯仿,经薄层层析展开后在紫外光下具有发荧光的特点,纸电泳实验证实该物质是一种弱酸性物质。

    After developed on thin layer chromatography it possesses the property of fluorescence . Paper electrophoresis has proved that it is a substance of weak acidity .

  20. 羟基铝蒙脱石去除染料弱酸性深蓝GR的研究

    Adsorption of Weak Deep Blue GR on Hydroxy-Alumium Montmorillonite

  21. 提出应用活化剂ST&1,在弱酸性或中性介质中,于低温下使H2O2活化的方法对兔棉针织物进行温和漂白。

    A process that applying ST-1 as an activator to activate H2O2 at low temperature in a neutral or weak acidic medium is recommended .

  22. 值为44。无量纲计算一元弱酸溶液pH值

    Value ( number of fundamental ) being 44 . The chromosome number and karyotype of A. The Dimensionless Calculation of pH for the Solution of Weak Monoacids

  23. 在弱酸阶段随着甲醛与尿素摩尔比和pH值的下降,通过亚甲基键连接的尿素和高分子质量树脂含量增加,而通过亚甲基醚键连接的尿素的含量下降;

    During the weak acid stage , methylene linkages in the polymeric resin increased and dimethylene ether linkages decreased as formaldehyde / urea molar ratio and pH decreased .

  24. 弱酸性KCl溶液中Zn~(2+)在铜电极上沉积机理的探讨

    Electrodeposition mechanism of zinc ions on Cu electrode in weakly acid potassium chloride solution

  25. 并探讨了活菌固定化小球和死菌固定化小球在不同培养时间、温度、pH、染料浓度等条件下对偶氮染料弱酸猩红FG的脱色效果。

    This paper explored the effect of decolorization of different states immobilized cell under conditions such as temperature , pH , culture time .

  26. 本文研究了在pH3的弱酸性介质中,微量Cr()催化溴酸钾氧化靛蓝胭脂红褪色反应及动力学条件,建立了一种新的测定微量Cr()的动力学方法。

    A new catalytic kinetic spectrophotometric method and its reaction mechanism have been studied for the determination of micro chromium (ⅵ) .

  27. ESR结果证明:这些底物在弱酸性条件下的漆酶催化反应经历了质子转移和单电子氧化步骤。

    The result demonstrate that the Laccase-catalyzed reaction of these substrates underwent the stage of the proton transportation and one-electron oxidation .

  28. 本文重点介绍了弱酸兰BS染料合成改进工艺。

    The improved synthetic process of the weak acid dyestuff , Blue BS was described in this paper .

  29. 弱酸洗脱提取的肿瘤抗原肽致敏的树突状细胞对CTL的体内外激活效应

    In vivo and in vitro activation of CTL by murine dendritic cells pulsed with acid eluted tumor antigen peptides

  30. 本文介绍了一元弱酸或弱碱溶液pH值计算的一种新公式,该公式简单、准确度好,对多种溶液的pH进行了计算,结果满意。

    A new equation are given for calculating pH value of solutions of mono - protic weak acid or base . The equation is simple accurate and has been applied with satisfactory results .