To compare the design value with the experimental value, the average deviation of the degree of hydrolysis of the potassium alum solution is 0.6%, dissociation constant pKb =11.6±0.1, and the average deviation of the ion product of water pKw less than 0.06, thus improving the formula established by H.N. EPEMNH of the USSR.

The ion product constant of water,the protonation constant ofFenbufen and stability constants of the complex compounds formed from ligandwith copper(Ⅱ),nickel(Ⅱ),cobalt(Ⅱ)and zinc(Ⅱ)have been determined bypH method at 25±0.2℃,Ⅰ=0.1mol. L~(-1)(KNO)_3)in mixed solvents〔80%(V/V)DMSO〕.

The full equation for the degree of hydrolysis of salts and the dissociation constant of hydrolysate is established on the basis of the hydro-lysate is established on the basis of the hydrolysis relationship for salts and the expression of ion product of water.

Based on the ion product and the viscosity of water, the paper obtained the limiting molar conductivity, the electrolytic conductivity and the neutralization heat of strong acid to strong base in infinite dilution at various temperatures.

When exceeding critical point of water (Tc = 374℃; Pc = 22.1MPa), the values of density, dielectric constant, hydrogenous bond and ionic product of water drop down, so supercritical water acts as a non-polar solvent of high diffusivity and excellent transport properties.

In this paper an adapted and more practical formula for the water ionic product pKw = f(T.P) in critical and above-critical zones has been put forward, which is based on the systematical study no the existing formulae and on the chemical thermodynamical theory.

(1) Volume change of the precipitate formed by and thorium ion concentration as well as pH value of the System: Th(NO_3)_4—NaIO_3—H_2O have been studied and it is found therefrom that by the reaction of thorium nitrate Th(NO_3)_4 and Sodium iodate NaIO_3 in solution only precipitate of definite composition corresponding to Th(NO_3)_4 is formed.

By using variance analyisis correlative coefficient and partial correlative test, the new formula presented by Mr, zhou has been considered to be mor satisfactory than others made before.

The equations are given for the calculation of equivalent point Ve of monoprotic acidwith logK<10。 Only the titrant volume and hydrogen ion concentration are needed to beintroduced as variables。 The stability constant of acid K and the dissociation constant ofwater K_w need not to known and can be calculated from the equations with, the V_e.

Serum phosphorus levels and values for the calcium-phosphorus ion product in serum often decline as plasma PTH levels fall during treatment.

The serum calcium-phosphorus ion product decreased during the first 8?weeks and values did not change subsequently.

Measures to preserve renal function should therefore also comprise the maintenance of hemoglobin, serum lipid, and calcium-phosphorus ion product levels in the normal range.

A nearly constant ion product, over a wide variety of conditions, was obtained for a tricalcium phosphate (TCP)-like phase suggesting that the molecular unit which governs the solubility of ACP may be similar in composition to TCP.

The introduction of 10% acid phosphate into the formula for the TCP ion product improves the fit of experimental data and results in an invariant ion product.

This reaction is necessarily characterized by a large change in geometry between neutral complex and ionic product.

In a prospective trial 42 consecutive ERCP/EST patients were randomized to receive either iopromid, a low-osmolar non-ionic contrast agent (770 mosmol/kg H2O), or iotrolan, a blood-isotone non-ionic product (320 mosmol/kg H2O).

The ionic product of water in highly concentrated aqueous electrolyte solutions

It is demonstrated that the ionic product is related to the pH according to IPc = A.pHB.

The ionic product of 10750oxy-apatite has been calculated from data sets from the hard water rivers Rhine and Rhone.

(1) Volume change of the precipitate formed by and thorium ion concentration as well as pH value of the System: Th(NO_3)_4—NaIO_3—H_2O have been studied and it is found therefrom that by the reaction of thorium nitrate Th(NO_3)_4 and Sodium iodate NaIO_3 in solution only precipitate of definite composition corresponding to Th(NO_3)_4 is formed.

The full equation for the degree of hydrolysis of salts and the dissociation constant of hydrolysate is established on the basis of the hydro-lysate is established on the basis of the hydrolysis relationship for salts and the expression of ion product of water. To compare the design value with the experimental value, the average deviation of the degree of hydrolysis of the potassium alum solution is 0.6%, dissociation constant pKb =11.6±0.1, and the average deviation of the ion product of water pKw less than...

The full equation for the degree of hydrolysis of salts and the dissociation constant of hydrolysate is established on the basis of the hydro-lysate is established on the basis of the hydrolysis relationship for salts and the expression of ion product of water. To compare the design value with the experimental value, the average deviation of the degree of hydrolysis of the potassium alum solution is 0.6%, dissociation constant pKb =11.6±0.1, and the average deviation of the ion product of water pKw less than 0.06, thus improving the formula established by H.N. EPEMNH of the USSR.

In this paper an adapted and more practical formula for the water ionic product pKw = f(T.P) in critical and above-critical zones has been put forward, which is based on the systematical study no the existing formulae and on the chemical thermodynamical theory. Compared with Sweeton's experimental pKw value under 0-300℃, the average deviation of the pKw value obtained by the adapted formula is 0.008, which is close to that by Marshall's formula under 0-300℃ and 1-1000 bar. From this formula, other relevant ones...

In this paper an adapted and more practical formula for the water ionic product pKw = f(T.P) in critical and above-critical zones has been put forward, which is based on the systematical study no the existing formulae and on the chemical thermodynamical theory. Compared with Sweeton's experimental pKw value under 0-300℃, the average deviation of the pKw value obtained by the adapted formula is 0.008, which is close to that by Marshall's formula under 0-300℃ and 1-1000 bar. From this formula, other relevant ones for pKw = f(T), pKw = f(T.p) can also be derived.