Determination of thermokinetic parameters in dissolution process of DMF of carbohydrazide styphnates by microcalorimetry

Ying Liu; Li Yang; Tong Lai Zhang

Determination of thermokinetic parameters in dissolution process of DMF of carbohydrazide styphnates by microcalorimetry

Ying Liu^*, Li Yang, Tong Lai Zhang

^*Corresponding author for this work

School of Mechatronical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

The dissolving processes, thermochemical properties and thermokinetic parameters of manganese carbohydrazide styphnate ([Mn₂ (CHZ)₂ (TNR)₂ (H₂O) 4]_n), nickel carbohydrazide styphnate ([Ni (CHZ)₃ (TNR)]_n) and lead carbohydrazide styphnate ([Pb₂ (CHZ)₂ (TNR)₂ (H₂O)₂]_n) in N, N-dimethylformamide (DMF) at 298.15 K were studied by a SETARAM C80 calorimeter. The results show that the dissolving process of them in DMF are exothermic, however the exothermic peaks are different. The results are associated with the different molecular structure and polarity of solutes. The empirical formulas for the enthalpies of dissolution (Δ_solH), the relative apparent molar enthalpies (φL_i), the relative partial molar enthalpies (L_i), and the enthalpies of dilution (Δ_dilH_1,2) are respectively deduced by polynomial fitting of experimental data. The standard enthalpies of dissolution (Δ_solH_m^θ) are calculated respectively as -17.75 kJ · mol^-1, -29.76 kJ · mol^-1 and -15.35 kJ · mol^-1. The rate constant of dissolution reaction (k), and the reaction order (n) are obtained from the kinetic formulas.

Original language	English
Pages (from-to)	49-53
Number of pages	5
Journal	Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Volume	36
Issue number	5
Publication status	Published - 2013

Keywords

Carbohydrazide
Enthalpies of dilution
Enthalpies of solution
Kinetics
Physical chemistry
Styphnis acid
Thermochemistry

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@article{0fc31e0dec37425395689ba68c45b8be,

title = "Determination of thermokinetic parameters in dissolution process of DMF of carbohydrazide styphnates by microcalorimetry",

abstract = "The dissolving processes, thermochemical properties and thermokinetic parameters of manganese carbohydrazide styphnate ([Mn2 (CHZ)2 (TNR)2 (H2O) 4]n), nickel carbohydrazide styphnate ([Ni (CHZ)3 (TNR)]n) and lead carbohydrazide styphnate ([Pb2 (CHZ)2 (TNR)2 (H2O)2]n) in N, N-dimethylformamide (DMF) at 298.15 K were studied by a SETARAM C80 calorimeter. The results show that the dissolving process of them in DMF are exothermic, however the exothermic peaks are different. The results are associated with the different molecular structure and polarity of solutes. The empirical formulas for the enthalpies of dissolution (ΔsolH), the relative apparent molar enthalpies (φLi), the relative partial molar enthalpies (Li), and the enthalpies of dilution (ΔdilH1,2) are respectively deduced by polynomial fitting of experimental data. The standard enthalpies of dissolution (ΔsolHmθ) are calculated respectively as -17.75 kJ · mol-1, -29.76 kJ · mol-1 and -15.35 kJ · mol-1. The rate constant of dissolution reaction (k), and the reaction order (n) are obtained from the kinetic formulas.",

keywords = "Carbohydrazide, Enthalpies of dilution, Enthalpies of solution, Kinetics, Physical chemistry, Styphnis acid, Thermochemistry",

author = "Ying Liu and Li Yang and Zhang, \{Tong Lai\}",

year = "2013",

language = "English",

volume = "36",

pages = "49--53",

journal = "Huozhayao Xuebao/Chinese Journal of Explosives and Propellants",

issn = "1007-7812",

publisher = "China Ordnance Industry Corporation",

number = "5",

}

TY - JOUR

T1 - Determination of thermokinetic parameters in dissolution process of DMF of carbohydrazide styphnates by microcalorimetry

AU - Liu, Ying

AU - Yang, Li

AU - Zhang, Tong Lai

PY - 2013

Y1 - 2013

N2 - The dissolving processes, thermochemical properties and thermokinetic parameters of manganese carbohydrazide styphnate ([Mn2 (CHZ)2 (TNR)2 (H2O) 4]n), nickel carbohydrazide styphnate ([Ni (CHZ)3 (TNR)]n) and lead carbohydrazide styphnate ([Pb2 (CHZ)2 (TNR)2 (H2O)2]n) in N, N-dimethylformamide (DMF) at 298.15 K were studied by a SETARAM C80 calorimeter. The results show that the dissolving process of them in DMF are exothermic, however the exothermic peaks are different. The results are associated with the different molecular structure and polarity of solutes. The empirical formulas for the enthalpies of dissolution (ΔsolH), the relative apparent molar enthalpies (φLi), the relative partial molar enthalpies (Li), and the enthalpies of dilution (ΔdilH1,2) are respectively deduced by polynomial fitting of experimental data. The standard enthalpies of dissolution (ΔsolHmθ) are calculated respectively as -17.75 kJ · mol-1, -29.76 kJ · mol-1 and -15.35 kJ · mol-1. The rate constant of dissolution reaction (k), and the reaction order (n) are obtained from the kinetic formulas.

AB - The dissolving processes, thermochemical properties and thermokinetic parameters of manganese carbohydrazide styphnate ([Mn2 (CHZ)2 (TNR)2 (H2O) 4]n), nickel carbohydrazide styphnate ([Ni (CHZ)3 (TNR)]n) and lead carbohydrazide styphnate ([Pb2 (CHZ)2 (TNR)2 (H2O)2]n) in N, N-dimethylformamide (DMF) at 298.15 K were studied by a SETARAM C80 calorimeter. The results show that the dissolving process of them in DMF are exothermic, however the exothermic peaks are different. The results are associated with the different molecular structure and polarity of solutes. The empirical formulas for the enthalpies of dissolution (ΔsolH), the relative apparent molar enthalpies (φLi), the relative partial molar enthalpies (Li), and the enthalpies of dilution (ΔdilH1,2) are respectively deduced by polynomial fitting of experimental data. The standard enthalpies of dissolution (ΔsolHmθ) are calculated respectively as -17.75 kJ · mol-1, -29.76 kJ · mol-1 and -15.35 kJ · mol-1. The rate constant of dissolution reaction (k), and the reaction order (n) are obtained from the kinetic formulas.

KW - Carbohydrazide

KW - Enthalpies of dilution

KW - Enthalpies of solution

KW - Kinetics

KW - Physical chemistry

KW - Styphnis acid

KW - Thermochemistry

UR - https://www.scopus.com/pages/publications/84890831321

M3 - Article

AN - SCOPUS:84890831321

SN - 1007-7812

VL - 36

SP - 49

EP - 53

JO - Huozhayao Xuebao/Chinese Journal of Explosives and Propellants

JF - Huozhayao Xuebao/Chinese Journal of Explosives and Propellants

IS - 5

ER -

Determination of thermokinetic parameters in dissolution process of DMF of carbohydrazide styphnates by microcalorimetry

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