混合酸
- 网络Mixed acid
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线性滴定法测定混合酸(HAⅠ+HAⅡ)或多元酸的等当点时,必须正确地选择滴定点,这是提高线性滴定法准确度的重要措施之一。
The titration points must be selected exactly as the equivalence points of mixed acid ( HA ⅰ + HA ⅱ) or polyprotonic acid are determined by linear titrimetry , which is one of the important steps to raise the accuracy of linear titrimetry .
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实验连续运行21d,可以实现发酵类型从混合酸型发酵到乙醇型发酵的转变。
The experimental results indicated that : after 21 days ' continuous operation of the reactor , the fermentation type transferred from mixed acid fermentation to the ethanol fermentation .
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方法采用混合酸消化,运用ICP-AES同时测定茯苓中多种微量元素。
Method Using mixed-acid digestion and ICP-AES simultaneously measured the multiple microelements in tuckahoe .
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提出了H2S和CO2混合酸气在甲基二乙醇胺水溶液及在甲基二乙醇胺、环丁砜、水溶液中的平衡溶解度的计算模型。
This paper proposes an equilibrium solubility calculation model for H_2S and CO_2 in aqueous methyldiethanolamine solution and aqueous methyldiethanolamine sulfolane solutions .
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于40℃和100℃测定了H2S和CO2混合酸气在2.5kmol/m~3MDEA水溶液中的平衡溶解度。
The equilibrium solubility of sour gas mixture of H_2S and CO_2 in MDEA aqueous solution ( 2.5kmol / m ~ 3 ), had been determined at 40 ℃ and 100 ℃ .
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样品经TC-Ⅱ型快速消化器用硝酸高氯酸混合酸消化后,直接上机测定,取得了较满意的结果。
After the sample is digested by using a blend of nitric acid and perchloric acid in instrument of TC - style , it can be detected in the double-channel atomic fluorescence spectrometer .
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以天然粉石英为基本原料,通过氢氟酸与盐酸混合酸溶蚀技术和机械强力搅拌处理,制备了高纯球形-准球形亚微米晶质SiO2材料。
High purity spherical-normal spherical submicron crystal silica is prepared by using technique of mixing acid corrosion ( anhydrofluoric acid and sulphuric acid ) and method of mechanical stir from raw powder quartz .
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不锈钢表面电镀Pd-Cu合金膜及其在甲乙混合酸中的耐蚀性能研究
The Electroplating Palladium-Copper Alloy Film on 316L Stainless Steel and Its Corrosion Resistance in Mixture of Acetic and Formic Acids
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以混合酸、有机溶剂、表面活性剂和多种助剂为原料,研制了多功能解堵剂ACM-1。
ACM-1 is composed of mixing acid , organic solvent , surfactants and some additive .
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以对苯二酚(HQ)和异丁烯为原料,在磷酸或硫酸-磷酸混合酸催化作用下进行烷基化合成2-叔丁基对苯二酚(TBHQ),探讨了催化剂种类及用量、加料方式对合成TBHQ选择性的影响。
2-Tert-butylhydroquinone ( TBHQ ) was synthesized selectively from hydroquinone ( HQ ) and isobutylene by alkylation in the presence of catalyst H_3PO_4 or H_2SO_4-H_3PO_4.The dosage of catalyst and charging method of HQ were investigated .
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通过实验分析选用HCl与HNO3作为混合酸对玉米秸秆进行低温热水解,结果得出当酸质量分数相同时,HCl与HNO3混合酸作用下玉米秸秆的热水解效果明显优于单酸。
The results showed that the hydrolysis efficiency of corn stover using a mixed acid of hydrochloric acid and nitric acid was superior to that of using individual acid in case of the same acid concentration .
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采用硝酸与其它酸的混合酸对特殊钢进行表面处理时,会产生大量的NOx和其它挥发性酸雾,是冶金企业的主要污染源之一。
When the surface treatment of special steels is conducted by using the mixed acid formed with Nitric acid ( HNO3 ) and other acids , there will occur a lot of NOx and other Volatile acid mist which become the main pollution source of metallurgical enterprises .
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用HNO3HCLO4HF混合酸,加压分解试样,以水平式ICPAES可同时测定岩石中痕量铍、铬、锰、钒和锆。
The sample is dissolved with mixed HNO_ ( 3 - ) - HClO_ ( 4 - ) - HF acid in pressure . Trace beryllium , chromium , manganese , vanadium and zirconium content in rocks can be simultaneously determined using horizontal ICP-AES with calibration curve method .
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方法人发经HNO3-HClO4-H2SO4混合酸消化、电热板加热处理后,在5%盐酸酸度下应用氢化物发生-原子荧光光谱仪(HG-AFS)测定人发中砷含量。
Method After ( digesting ) with the mixed acids of HNO_3-HClO_4-H_2SO_4 and heating by electric hot plate , the arsenic content in human hair was determined under 5 % hydrochloric acid acidity by hydride generation-atomic fluorescence spectrometry .
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以部分水解聚丙烯酰胺(HPAM)、聚电解质A为絮凝剂和混合酸为凝聚剂的复合絮凝剂配方,可以彻底破坏HPAM类型废弃钻井液的胶体体系,使废浆液絮凝脱水。
The compound flocculant prescription consisted of partial hydrolytic polyacrylamide ( HPAM ) and polyelectrolyte A as flocculant and mixed acid as coagulant could thoroughly break down the colloid system of the waste drilling liquid of HPAM type and make the waste mud flocculate and dewater .
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混合酸浸取的最佳工艺条件是:硫酸用量系数0.90~0.95,硫酸浓度65~70%,反应温度130~150℃,37%盐酸用量系数0.11,反应时间3~4h;
The best technology condition of the mixed acid dissolving is : The coefficient of the adding sulfuric acid is 0.90-0.95 , the sulfuric acid concentration is 65-70 % , reaction temperature 130-150 ℃, the coefficient of adding 37 % hydrochloric acid is 0.11 , reaction time 3-4 h ;
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采用盐酸、乙酸和氢氟酸组成的混合酸与质量分数为1.5%的GD-1复配制得的GD-1稠化酸体系,在60℃和90℃条件下,热稳定性均在80%以上;
The GD-1 thickening acid system was prepared by compounding 1.5 % ( wt ) GD-1 with a mixed acid composed of HCl , HAc and HF . Its thermal stability exceeded 80 % at 60 ℃ or 90 ℃ .
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线性滴定法测定混合酸时滴定点的选择
Selection of Titration Points for Determining Mixed Acid by Linear Titrimetry
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三组分混合酸的非线性回归处理
Nonlinear Regression Treatment for Titration of Acid Mixture of Three Components
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因子分析法在混合酸各组分浓度测定中的应用
Determination of Component Concentrations in Mixtures of Acids by Factor Analysis
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最小二乘法用于测定混合酸的研究
Application of Least Square Method for the Determination of Mixed Acids
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线性迭代法测定混合酸组分
Determination of Components of Mixed Acid by Linear Iterative Method
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混合酸对狗牙-介质-颌骨的石蜡切片制作的影响
The effect of mixed acid on paraffin section making of dog tooth-mediator-jaw
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多种(多元)混合酸的图象计算分析法
The Pattern Calculating Method for Mixed Acids ( Poly Acids ) Analysis
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校正计算法测定混合酸中各组分浓度
Determination of Components in Mixed Acids by Multivariate Calibration Method
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主成份分析法用于混合酸测定
Application of Principal Component Analysis for Determination of Mixed Acids
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极大似然估计法及其在混合酸电位滴定中的应用
Maximum Likelihood Estimation Method and Its Application to Potentiometric Titration of Acid Mixtures
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混合酸滴定计算中单纯形最优化法的应用
Application of Simplex Optimization Method to Mixed Acid Titration
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混合酸或碱溶液滴定的计算机模似
Computer Simulation of Titration of Acid or Base Mixture
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混合酸催化合成对羟基苯甲酸庚酯的新方法
New Synthesis Method of n Heptyl p hydroxybenzoate by the Complex acid Catalysis