The similarities between life processes that exhibit oscillatory behavior and chemical oscillating systems impel people to think that the biological and abiological phenomena conform to the same law. Oscillating chemi...The similarities between life processes that exhibit oscillatory behavior and chemical oscillating systems impel people to think that the biological and abiological phenomena conform to the same law. Oscillating chemical systems have been the focus of much research in the area of theoretical and experimental chemical dynamics as well as analytical sciences in recent years, but the studies on the perturbation species are kept around the concentration level of 10 -7 mol/L. In our experiment, an amazed phenomenon was found. Ultra trace level (10 -20 mol/L) of H 2O 2 can cause so magnitude influence on the macro system (MnSO 4 KBrO 3 diacetone oscillating chemical system) that the effect can be observed by a macroscopical method. When the concentration of H 2O 2 is above 10 -13 mol/L , the oscillation can even be stopped. A further study on the mechanism will doubtlessly help to understand the mystery of life, such as the sudden cardiopathy and the metabolism failure.展开更多
The reaction enthalpy of coordination reaction of lanthanum chloride with Glycine is determined by solution calorimetry in an isoperibel reaction calorimeter. The calormetric solvent is the solution of hydrochloric ac...The reaction enthalpy of coordination reaction of lanthanum chloride with Glycine is determined by solution calorimetry in an isoperibel reaction calorimeter. The calormetric solvent is the solution of hydrochloric acid (2 mol· L－ 1), a new thermochemical cycle is designed. According to the results, the following date: (298.2 K)=－ 4.310 kJ· mol－ 1 (La(Gly)3Cl3· 5H2O, s, 298.2 K)=－ 4222.93 kJ· mol－ 1 were obtained.展开更多
Polyacrylamide coating was formed on aluminium cathode by in situ electrochemical polymerization at constant potential. The influences of supporting electrolytes, cell potential and monomer concentration on the perfor...Polyacrylamide coating was formed on aluminium cathode by in situ electrochemical polymerization at constant potential. The influences of supporting electrolytes, cell potential and monomer concentration on the performance and morphology of the coating have been studied. Coating with thickness up to 10 μm were obtained by polymerization of acrylamide solution containing 0 05 mol/L AlCl 3 for 1 h at potential of 8.0 V. The morphology and structure of the coating have been examined by FTIR. The mechanism of ECP has been discussed briefly.展开更多
The reaction enthalpy of solid-solid coordination reaction of L-Leucine with copper acetate is determined by solution calorimetry in an isoperibel reaction calorimeter. The calorimetric solvent is the solution of hydr...The reaction enthalpy of solid-solid coordination reaction of L-Leucine with copper acetate is determined by solution calorimetry in an isoperibel reaction calorimeter. The calorimetric solvent is the solution of hydrochloric acid（4 mol/L）, a new thermochemical cycle is designed. The values of ΔfHθm=15.64 kJ/mol, ΔfHθm（trans-Cu（L-Leu）2,s）=-1194.7 kJ/mol are evalcated.展开更多
The standard molar reaction enthalpy of the solid-solid coordination reaction, La(NO3)3· 6H2O (s) + 4Ala(s) (Ala is Alanine) =La(NO3)3. (Ala)4·H2O(s) + 5H2O(1), has been studied by the classical solution cal...The standard molar reaction enthalpy of the solid-solid coordination reaction, La(NO3)3· 6H2O (s) + 4Ala(s) (Ala is Alanine) =La(NO3)3. (Ala)4·H2O(s) + 5H2O(1), has been studied by the classical solution calorimetry. The molar dissolution enthalpies of the reactants and the products in 2 mol/L HCl of this solid-solid coordination reaction have been measured by using an isoperibol calorimeter. From the results and other auxiliary quantities, the standard molar formation enthalpies of [La (NO3 )3. (Ala)4. H2O, s, 298.15 K] have been determined to be Hm [La (NO3)3. (Ala)4. H2O, s, 298. 15 K]= -3 864. 247 kJ/mol.展开更多
文摘The similarities between life processes that exhibit oscillatory behavior and chemical oscillating systems impel people to think that the biological and abiological phenomena conform to the same law. Oscillating chemical systems have been the focus of much research in the area of theoretical and experimental chemical dynamics as well as analytical sciences in recent years, but the studies on the perturbation species are kept around the concentration level of 10 -7 mol/L. In our experiment, an amazed phenomenon was found. Ultra trace level (10 -20 mol/L) of H 2O 2 can cause so magnitude influence on the macro system (MnSO 4 KBrO 3 diacetone oscillating chemical system) that the effect can be observed by a macroscopical method. When the concentration of H 2O 2 is above 10 -13 mol/L , the oscillation can even be stopped. A further study on the mechanism will doubtlessly help to understand the mystery of life, such as the sudden cardiopathy and the metabolism failure.
文摘The reaction enthalpy of coordination reaction of lanthanum chloride with Glycine is determined by solution calorimetry in an isoperibel reaction calorimeter. The calormetric solvent is the solution of hydrochloric acid (2 mol· L－ 1), a new thermochemical cycle is designed. According to the results, the following date: (298.2 K)=－ 4.310 kJ· mol－ 1 (La(Gly)3Cl3· 5H2O, s, 298.2 K)=－ 4222.93 kJ· mol－ 1 were obtained.
文摘Polyacrylamide coating was formed on aluminium cathode by in situ electrochemical polymerization at constant potential. The influences of supporting electrolytes, cell potential and monomer concentration on the performance and morphology of the coating have been studied. Coating with thickness up to 10 μm were obtained by polymerization of acrylamide solution containing 0 05 mol/L AlCl 3 for 1 h at potential of 8.0 V. The morphology and structure of the coating have been examined by FTIR. The mechanism of ECP has been discussed briefly.
文摘The reaction enthalpy of solid-solid coordination reaction of L-Leucine with copper acetate is determined by solution calorimetry in an isoperibel reaction calorimeter. The calorimetric solvent is the solution of hydrochloric acid（4 mol/L）, a new thermochemical cycle is designed. The values of ΔfHθm=15.64 kJ/mol, ΔfHθm（trans-Cu（L-Leu）2,s）=-1194.7 kJ/mol are evalcated.
文摘The standard molar reaction enthalpy of the solid-solid coordination reaction, La(NO3)3· 6H2O (s) + 4Ala(s) (Ala is Alanine) =La(NO3)3. (Ala)4·H2O(s) + 5H2O(1), has been studied by the classical solution calorimetry. The molar dissolution enthalpies of the reactants and the products in 2 mol/L HCl of this solid-solid coordination reaction have been measured by using an isoperibol calorimeter. From the results and other auxiliary quantities, the standard molar formation enthalpies of [La (NO3 )3. (Ala)4. H2O, s, 298.15 K] have been determined to be Hm [La (NO3)3. (Ala)4. H2O, s, 298. 15 K]= -3 864. 247 kJ/mol.
