化学计量点

在被滴物浓度不太低的情况下，讨论了氧化还原滴定过程中，由于指示剂变色电位与化学计量点电位不符而引起的误差，并建立了一种计算方法。

The titration errors resulting from the difference between indicator discoloration potentiation and stoichiometric point potentiation are calculated with a new method in oxidation-reduction titration .

该方法无需确定的化学计量点和已知滴定剂的浓度，方法简便准确，适合于朱砂中硫化汞含量的测定。

The method is not necessary to ascertain the stoichiometric point of the titration and to know the titrant concentration . It is simple , accurate suitable for the determination of mercuric sulfide in cinnabar .

在混合弱酸滴定中，化学计量点时PH值计算、终点误差计算，分步滴定判据是三个必须明确的问题，本文对混合弱酸滴定的这三个问题作一探讨。

In mixed weak acid titration , calculation of PH of stoichiometric point , calculation of end point error and stepwise titration criterion are the must specific problems . This article means to study these problems .

线性法确定Cl~-测定的化学计量点

The Application of Linear Method for Cl ~ - Determination

本文探讨了氧化还原滴定中，化学计量点电位的计算公式。

This paper discusses the calculation formula of chemical metering sputpotential in redox titration .

滴定时不需要确定化学计量点，也不需要已知滴定剂浓度，而是用单标准比较、标准曲线或线性回归对试样定量分析。

There is no necessary to ascertain the equivalence point and to standardize the concentration of the titrant .

根据滴定终点与化学计量点不一致而导致终点误差这一原理，推导出氧化还原滴定的终点误差公式。

The formula can be used to calculate the end point error of both complicated redox reactions and simple ones .

采用这一计算式，可以计算在不同条件下，氧化还原滴定的化学计量点电位。

The potential at the Stoichiometrical Point of Oxidation-reduction titrations can be calculated by using the equation under different circumstances .

盐酸滴定碳酸钠第二化学计量点碳酸浓度的探讨

Discussion on the carbonic acid 's concentration of the second chemical meterage point in the process of titrating sodium carbonate with hydrochloric acid

方便快速实用的通式&氧化还原滴定化学计量点电势的计算

A General Form of Simplicity , Quickness and Practicality & On the Calculation of Oxidation-reduction Titration of Chemical Measuring Point on Chemical Measuring Point

本文对文献[1]-[3]中主要介绍的几种氧化还原滴定中化学计量点电位的计算公式从数学上进行了论证，指出了他们的异同点。

This paper proves mathematically some main equations given in the literature which are used to calculate the potential at the stoichiometric point of oxidation-reduction titrations .

本文推导了一个普通适用于各类氧化还原滴定化学计量点电位通用计算式，并对该通用计算式的应用进行了讨论。

This article means to study the universal formula to calculate potential of stoichiometric point in redox titration and the application of this universal formula was discussed .

根据溶液中的物料平衡和电荷平衡，导出了酸式盐HA-，H2A-，HA2-线性滴定的计算公式，用滴定直线确定化学计量点体积。

The computation formula of linear titration for acid salt HA - , H2A - , HA2-is presented . Volumes of chemical counting point can be obtained through titration line .

提出利用化学计量点的质子条件式，可以简易导出各种情况下的酸碱滴定误差公式。

The paper puts forward that by using proton balance equation of stoichiometric point , simple and easy derive formula of acid-base titration error for the all circumstances can be leaded .

该法只需记录两次电极电位值和相应滴定剂体积，利用公式即可计算滴定化学计量点。

It only needs to record the electrode potentials at two points nearby the stoichiometric point and the corresponding volumes of the titrant , and the stoichiometric point can be calculated by the two-point equation .

与传统的紫外光谱法相比，应用四乙酸铅电位滴定法测定汽油中硫醚硫的含量，具有化学计量点处电位突跃明显、电位值稳定、操作简单、结果准确可靠的特点。

Comparing with conventional method of violet spectrum , the method of potentiometric titration of lead tetraacetate has many advantages such as stable potentiometric value , exact and credible results , clear potentiometric abrupt change in stoichiometric point and simple operation .

介绍以粉煤灰为主要原料代替传统的矿物原料，在化学计量比点成功地合成了堇青石微晶玻璃。

The cordierite glass ceramic is successfully synthesized using the coal ash as the primary starting material in lieu of the traditional mineral material at the proper chemical ingredient ratio .