酸碱性
- 网络acid-base;Acidity and alkaline;Acid-Base Properties
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模糊K均值聚类分析在化合物酸碱性分类研究中的应用
Application of Fuzzy of K-mean Cluster Analysis on the Classification Research of Acid-base Properties of Compounds
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催化性能与酸碱性密切相关。
The catalytic properties correlate well with the acid-base properties .
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pH值是溶液酸碱性的量度。
The PH value is a measurement of acid and alkali .
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沉积物的酸碱性直接影响上覆水pH值。
The acidity of the sediment directly influenced the overlying water pH value .
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本文首先研究了含镍电镀污泥的成分和酸碱性,结果表明:①电镀污泥为弱碱性,pH值为8。
It indicates : ① pH value of the sludge is 8 , alkalescence .
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日化洗涤品的酸碱性pH值比较及解说日常必需品,日用品
Comparison and commentary the pH value of acid-base properties of the date of washing products
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V2O5/TiO2催化剂的表面结构和酸碱性及氧化还原性
Structure , Surface Acidity / Basicity and Redox Properties of V_2O_5 / TiO_2 Catalysts
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TiO2对陶瓷酸碱性的影响
The Influence of TiO_2 on Ceramic Acidity and Basicity
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Sol-Gel法制备Bi2O3·3MoO3复合氧化物催化剂及其表面酸碱性的微量吸附量热研究
Preparation of Bi_2O_3 · 3MoO_3 Oxide Catalyst by Sol Gel Method and its Microcalorimetric Studies of Surface Acidity and Basicity
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考察了溶液的酸碱性、CVD沉积过程碳源量及硼掺杂等因素对电极电势窗口的影响。
The effect of PH value and amount of carbon source in CVD deposition process to the BDD potential window were studied .
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同时全面总结了pH在中学化学教学中的运用,发现用pH表示物质在溶液中的酸碱性存在着许多明显的不足。
Summarizing the application of pH in chemistry course and the teachings , We discovered that there existed many obvious shortages with pH to present material in the aqua of sour alkaline .
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用TPD方法研究3组份催化剂的酸碱性与活性的关系。
The relation between activity and acid base property of the catalyst was also investigated by TPD .
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RuO2-SnO2电极的XPS研究与氧化物表面的酸碱性
Ruo_2-sno_2 electrode XPS studies and acid-base properties of oxide surface
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丝光型Si-Fe沸石表面酸碱性的研究
Study on acidity and basicity of Si-Fe mordenite zeolite
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本论文系统的从氧化物结构及其酸碱性的角度研究了微波作用下金属氧化物对PET解聚的影响规律,研究表明金属氧化物的酸性、碱性越强,催化效果也就越好。
The law was studied from the perspective of the oxide structure and acid and alkaline . The study shows that the stronger of the oxide acidic alkaline of metal , the better catalytic effect .
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通过测定粉体Zeta电位、酸碱性和对分散剂PAA的吸附,探讨了TiC-Ni水系浆料的共悬浮。
Co-suspension of TiC-Ni in water had been investigated through the Zeta potential , acid and alkali property and PAA 's adsorption of powder .
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基膜化学稳定性的研究表明,PEU/PES共混基膜具有较好的耐酸碱性,而PSU/PES共混基膜耐酸碱性较差,限制其在pH敏感膜的制备方面的应用。
The characterized results of chemical stability showed that PEU / PES blend membranes possessed better acid-proof and alkali-proof advantages , but PSU / PES blend membranes did not possess the advantages , which restrict their application in preparation of pH sensitive membrane .
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在水热体系中,合成介质的酸碱性对MCM-41分子筛的生成有很大的影响,据此提出了MCM-41分子筛生成的详细机理。
According to the great influence of system acidity and alkalinity on MCM41 molecular sieve formation in hydrothermal condition , a detailed formation mechanism of MCM41 was proposed .
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文章研究了酸碱性填料对沥青混凝土抗剥落性行为的影响,探讨了工业固态粉末废物EF材料和粉煤灰用作沥青混凝土填料的可能性。
Effects of acidic and alkaline fillers on anti stripping of asphalt concrete , and the possibilities of solid powder wastes added into asphalt concrete as the filler , have been explored .
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结果表明,在2℃下,0.5mg/mL的秋水仙素处理4h并用改良的石炭酸碱性品红染色液染色效果最佳。
The results were as follows : under 2 ℃, 0.5 mg / mL colchicines for 4 h and modified phenol-alkaline fuchsin was the best .
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H2-TPR、NH3-TPD表征发现K和Fe元素在Silicalite-2载体上的浸渍顺序的不同会给催化剂的氢还原性能以及表面酸碱性带来差异。
The H2-TPR and NH3-TPD characterization of K-Fe / Silicalite-2 catalysts showed that the different soaking orders results in different reduction performances and different surface acidity and alkalinity of the catalysts .
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并运用XRU、XPS、CO_2-TPD、NH_3-TPD和IPA转化反应等技术分别对催化剂的体相结构和表面性质,表面酸碱性进行了测定。
The bulk - phase and surface structure of the catalysts were determined by XRD and XPS respectively . The surface basicity and acidity were measured by TPD of CO2 , NH3-TPD and IPA conversion reaction .
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由早单元到晚单元,向酸碱性增强方向演化,显示深源浅成铝质A型(A2型)花岗岩特征。各类构造环境判别图解投点,具造山后或后造山特征。
Granitoids evolve toward acidity and alkalinity from early unit to late unit , display the characteristics of aluminous A-type granite ( A2-type ) and have the characteristic of post-orogeny in some tectonic setting distinguish diagram .
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测定Cu-Al-O复合物催化剂表面酸碱性的微量热法
Quantitative Determination of Acidity and Basicity on Surface of Cu-Al-O Composite Catalyzer by Microcalorimetric Method
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微孔SiO2膜具有高温稳定性好、机械强度高、耐各种酸碱性介质腐蚀的特点,在涉及高温和腐蚀性气体的分离过程中具有其它膜材料无可比拟的优越性。
Silica membranes have many advantages over other materials when they used at high temperatures and corrosive environments as material for gas separation because of their high mechanical strength , high thermal stability , and high resistance to various acid-base medium corrosion .
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试验结果表明:粉煤灰水中的酸碱性受灰中SO3与碱性金属氧化物含量的影响;
The results indicate that the acidity and basicity in the waste water are affected by the SO 3 and metal oxide content in the fly ash ;
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ZrO2是一种化学稳定性好、具有氧化还原性及酸碱性的催化剂载体,ZrO2与活性组分能产生较强的相互作用,在催化氢化、F-T合成和氧化等反应有着广泛的应用。
ZrO_2 is a catalyst support with good chemical stability , oxidation-reduction properties and acidity-alkalescence on its surface . ZrO_2 can interact rather intensively with active phases , and has extensive applications in hydrogenation , synthesis of F-T and oxidation reaction .
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本文利用EPMA、XPS和FTIR等物理方法,研究了浸渍K2O以后的γ-Al2O3的表面组成、表面羟基性质、表面酸碱性以及表面各元素电子结合能的变化。
By using EPMA , XPS and FTIR etc. , the surface composition , the properties of surface hydroxyls , the acidity and basicity of the adsorption sites and the electron binding energies of surface elements of γ - Al_2O3 modified by K_2O are studied .
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此外,催化剂的酸碱性及其强度也是影响生物油HBF催化提质的重要因素,催化剂的酸性和碱性都有利于生物油HBF中大量脂肪族醇和羧酸类化合物的酯化反应。
In addition , the acidity and alkalinity of catalysts are also an important factor on efficiency of upgrading for HBF , and both beneficial to esterification between aliphatic OH and carboxylic acids in HBF of bio-oil .
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通过测量吸附热,金属氧化物的表面酸碱性强度可与Sanderson电负性关联起来,也可以考虑使用Drago参数来描述固体表面的酸碱性。
In addition , the strengths of surface acidity and basicity as defined by the adsorption heat of NH 3 and CO 2 can be correlated with Sanderson electronegativity of the metal oxides , and the interactions of basic probe molecules with acidic surface may be described by Drago parameters .