Chemical Properties of Piperazine (CAS 110-85-0)

InChI

InChI=1S/C4H10N2/c1-2-6-4-3-5-1/h5-6H,1-4H2

InChI Key

GLUUGHFHXGJENI-UHFFFAOYSA-N

Formula

C4H10N2

SMILES

C1CNCCN1

Molecular Weight¹

86.14

CAS

110-85-0

Other Names

• 1,4-Diazacyclohexane
• 1,4-Diethylenediamine
• 1,4-Piperazine
• Antiren
• Asca-Trol No. 3
• Diethylenediamine
• Diethyleneimine
• Dispermine
• Eraverm
• Hexahydro-1,4-diazine
• Hexahydropyrazine
• Lumbrical
• NSC 474
• Piperazidine
• Piperazin
• Piperazine, anhydrous
• Pipersol
• Pyrazine hexahydride
• Pyrazine, hexahydro-
• UN 2579
• Upixon
• Uvilon
• Vermex
• Worm-A-Ton
• Wurmirazin

• ω : Acentric Factor.
• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (kJ/mol).
• Δ_cH°_solid : Standard solid enthalpy of combustion (kJ/mol).
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• C_p,liquid : Liquid phase heat capacity (J/mol×K).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fH°_solid : Solid phase enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_subH° : Enthalpy of sublimation at standard conditions (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
• IE : Ionization energy (eV).
• log₁₀WS : Log10 of Water solubility in mol/l.
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• P_c : Critical Pressure (kPa).
• P_sub : Sublimation pressure (kPa).
• P_vap : Vapor pressure (kPa).
• ρ_c : Critical density (kg/m³).
• I_np : Non-polar retention indices.
• I : Polar retention indices.
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• T_triple : Triple Point Temperature (K).
• V_c : Critical Volume (m³/kmol).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ω	0.4009		Relay (1.0) Calculated Property
PAff	943.70	kJ/mol	NIST
BasG	914.70	kJ/mol	NIST
ΔcH°solid	[-2961.40; -2957.60]	kJ/mol
ΔcH°solid	-2961.40 ± 1.10	kJ/mol	NIST
ΔcH°solid	-2957.60 ± 1.60	kJ/mol	NIST
ΔfG°	190.38	kJ/mol	Joback Calculated Property
ΔfH°gas	[21.20; 25.00]	kJ/mol
ΔfH°gas	25.00 ± 6.30	kJ/mol	NIST
ΔfH°gas	21.20	kJ/mol	NIST
ΔfH°solid	[-45.60; -41.80]	kJ/mol
ΔfH°solid	-41.80 ± 1.10	kJ/mol	NIST
ΔfH°solid	-45.60 ± 1.60	kJ/mol	NIST
ΔfusH°	16.06	kJ/mol	Joback Calculated Property
ΔsubH°	[66.80; 67.00]	kJ/mol
ΔsubH°	67.00 ± 6.30	kJ/mol	NIST
ΔsubH°	66.80	kJ/mol	NIST
ΔvapH°	61.47	kJ/mol	Relay (1.0) Calculated Property
IE	[8.72; 8.98]	eV
IE	8.98	eV	NIST
IE	8.72	eV	NIST
log10WS	1.07		Aq. Solubility Prediction
logPoct/wat	-0.821		Crippen Calculated Property
McVol	76.320	ml/mol	McGowan Calculated Property
Pc	[5420.00; 5800.00]	kPa
Pc	5420.00	kPa	Critical Point and Vapor Pressure Measurements for Four Compounds by a Low Residence Time Flow Method
Pc	5800.00 ± 200.00	kPa	NIST
ρc	321.97 ± 24.98	kg/m3	NIST
Inp	[813.00; 870.00]
Inp	813.00		NIST
Inp	852.00		NIST
Inp	870.00		NIST
Inp	840.00		NIST
Inp	813.00		NIST
Inp	852.00		NIST
I	[1386.00; 1440.00]
I	1386.00		NIST
I	1390.00		NIST
I	1415.00		NIST
I	1405.00		NIST
I	1410.00		NIST
I	1440.00		NIST
I	1391.00		NIST
I	1386.00		NIST
I	1440.00		NIST
Tboil	[415.15; 419.20]	K
Tboil	419.20	K	NIST
Tboil	418.15 ± 2.00	K	NIST
Tboil	415.15 ± 1.50	K	NIST
Tc	661.00 ± 2.00	K	NIST
Tfus	[380.48; 384.55]	K
Tfus	380.48	K	Aq. Solubility Prediction
Tfus	383.20 ± 0.60	K	NIST
Tfus	383.46 ± 0.30	K	NIST
Tfus	384.55 ± 0.20	K	NIST
Ttriple	384.60 ± 0.30	K	NIST
Vc	0.273	m3/kmol	Relay (1.0) Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[216.30; 237.00]	J/mol×K	[393.20; 413.20]
Cp,liquid	216.30	J/mol×K	393.20	Liquid heat capacity of the solvent system (piperazine + n-methyldiethanolamine + water)
Cp,liquid	218.70	J/mol×K	398.20	Liquid heat capacity of the solvent system (piperazine + n-methyldiethanolamine + water)
Cp,liquid	220.50	J/mol×K	403.20	Liquid heat capacity of the solvent system (piperazine + n-methyldiethanolamine + water)
Cp,liquid	222.80	J/mol×K	408.20	Liquid heat capacity of the solvent system (piperazine + n-methyldiethanolamine + water)
Cp,liquid	237.00	J/mol×K	413.00	NIST
Cp,liquid	225.00	J/mol×K	413.20	Liquid heat capacity of the solvent system (piperazine + n-methyldiethanolamine + water)
Psub	[6.50e-03; 0.37]	kPa	[279.48; 321.12]
Psub	6.50e-03	kPa	279.48	Vapor Pressure and Its Temperature Dependence of 28 Organic Compounds: Cyclic Amines, Cyclic Ethers, and Cyclic and Open Chain Secondary Alcohols
Psub	0.01	kPa	286.78	Vapor Pressure and Its Temperature Dependence of 28 Organic Compounds: Cyclic Amines, Cyclic Ethers, and Cyclic and Open Chain Secondary Alcohols
Psub	0.01	kPa	286.85	Vapor Pressure and Its Temperature Dependence of 28 Organic Compounds: Cyclic Amines, Cyclic Ethers, and Cyclic and Open Chain Secondary Alcohols
Psub	0.03	kPa	292.58	Vapor Pressure and Its Temperature Dependence of 28 Organic Compounds: Cyclic Amines, Cyclic Ethers, and Cyclic and Open Chain Secondary Alcohols
Psub	0.05	kPa	299.16	Vapor Pressure and Its Temperature Dependence of 28 Organic Compounds: Cyclic Amines, Cyclic Ethers, and Cyclic and Open Chain Secondary Alcohols
Psub	0.08	kPa	304.27	Vapor Pressure and Its Temperature Dependence of 28 Organic Compounds: Cyclic Amines, Cyclic Ethers, and Cyclic and Open Chain Secondary Alcohols
Psub	0.12	kPa	308.37	Vapor Pressure and Its Temperature Dependence of 28 Organic Compounds: Cyclic Amines, Cyclic Ethers, and Cyclic and Open Chain Secondary Alcohols
Psub	0.20	kPa	313.57	Vapor Pressure and Its Temperature Dependence of 28 Organic Compounds: Cyclic Amines, Cyclic Ethers, and Cyclic and Open Chain Secondary Alcohols
Psub	0.30	kPa	318.25	Vapor Pressure and Its Temperature Dependence of 28 Organic Compounds: Cyclic Amines, Cyclic Ethers, and Cyclic and Open Chain Secondary Alcohols
Psub	0.31	kPa	318.69	Vapor Pressure and Its Temperature Dependence of 28 Organic Compounds: Cyclic Amines, Cyclic Ethers, and Cyclic and Open Chain Secondary Alcohols
Psub	0.37	kPa	321.12	Vapor Pressure and Its Temperature Dependence of 28 Organic Compounds: Cyclic Amines, Cyclic Ethers, and Cyclic and Open Chain Secondary Alcohols

Correlations

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[84.17; 266.55]	J/mol×K	[273.00; 1000.00]	Joback Predicted correlation
Equation			Y = A + B·T + C·T² + D·T³ + E·T⁴ Y is Cp,gas in J/mol×K, T in K
Coefficient A			-3.84500e+01
Coefficient B			5.05600e-01
Coefficient C			-2.09000e-04
Coefficient D			8.40000e-09
Coefficient E			0.00000e+00
Temperature range, min.			273.00
Temperature range, max.			1000.00
Cp,gas	84.17	J/mol×K	273.00	Calculated Property
Cp,gas	114.63	J/mol×K	353.78	Calculated Property
Cp,gas	142.48	J/mol×K	434.56	Calculated Property
Cp,gas	167.75	J/mol×K	515.33	Calculated Property
Cp,gas	190.46	J/mol×K	596.11	Calculated Property
Cp,gas	210.63	J/mol×K	676.89	Calculated Property
Cp,gas	228.30	J/mol×K	757.67	Calculated Property
Cp,gas	243.49	J/mol×K	838.44	Calculated Property
Cp,gas	256.23	J/mol×K	919.22	Calculated Property
Cp,gas	266.55	J/mol×K	1000.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.66]	kPa	[316.52; 444.19]	The Yaws Handbook of Vapor Pressure
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.49629e+01
Coefficient B			-3.59933e+03
Coefficient C			-7.12570e+01
Temperature range, min.			316.52
Temperature range, max.			444.19
Pvap	1.33	kPa	316.52	Calculated Property
Pvap	2.97	kPa	330.71	Calculated Property
Pvap	6.11	kPa	344.89	Calculated Property
Pvap	11.67	kPa	359.08	Calculated Property
Pvap	21.01	kPa	373.26	Calculated Property
Pvap	35.86	kPa	387.45	Calculated Property
Pvap	58.46	kPa	401.63	Calculated Property
Pvap	91.54	kPa	415.82	Calculated Property
Pvap	138.36	kPa	430.00	Calculated Property
Pvap	202.66	kPa	444.19	Calculated Property

Similar Compounds

Find more compounds similar to Piperazine.

Mixtures

• Piperazine + Water + 1-Propanol, 2-amino-2-methyl-
• Piperazine + 1-Propanol, 2-amino-2-methyl-
• Piperazine + 2-Amino-2-ethyl-1,3-propanediol + Water
• Piperazine + 2-(DIETHYLAMINO)ETHANOL + Water
• Piperazine + Carbon dioxide + Water
• Piperazine + 1-Piperazineethanamine + Water
• 1,2-Ethanediamine, N,N,N'-trimethyl- + Piperazine + Water
• Piperazine + Methyldiethanolamine + Water
• Piperazine + Water
• Piperazine + Methyldiethanolamine
• Piperazine + 2-Propanol, 1-(dimethylamino)- + Water
• Piperazine + 1,2-Ethanediamine, N-(2-aminoethyl)- + Water
• Piperazine + N-Methyl-1,3-propanediamine + Water
• 1,3-Propanediamine + Piperazine + Water
• Piperazine + 1,4-Butanediamine + Water
• Piperazine + Ammonia + Water
• Piperazine + Tromethamine + Water
• Piperazine + 2-(2-Hydroxyethyl)piperidine + Water
• Nitrous oxide + Piperazine + Water
• Piperazine + Hydrogen sulfide + Water

Find more mixtures with Piperazine.

Sources

• Cheméo Relay (1.0)
• Crippen Method
• Solubility of Carbon Dioxide in Aqueous Piperazine Solutions
• Experimental Solubility and Thermodynamic Modeling of Carbon Dioxide in Aqueous Alkanolamine Solutions in the High Gas Loading Region
• High pressure solubility of carbon dioxide (CO2) in aqueous piperazine solutions
• Vapour liquid equilibria of carbon dioxide in dilute and concentrated aqueous solutions of piperazine at low to high pressure
• Vapor-liquid equilibria of NH3 in (NH3 + H2O) and (NH3 + PZ + H2O) system
• Experiments and theory for the surface tensions of carbonated MDEA - PZ aqueous solutions
• Molar heat capacities of aqueous 2-amino-2-ethyl-1,3-propanediol solutions and their ternary mixtures containing piperazine or lithium salts
• Effect of piperazine on solubility of carbon dioxide using aqueous diethanolamnie
• Experimental measurements and modelling of carbon dioxide solubility in aqueous AMP/MDEA and Piperazine/MDEA blends
• Liquid heat capacity of the solvent system (piperazine + n-methyldiethanolamine + water)
• Liquid heat capacity of the solvent system (piperazine + 2-amino-2-methyl-lpropanol + water)
• Experiments and model for the viscosity of carbonated 2-amino-2-methyl-1-propanol and piperazine aqueous solution
• Experiment and modeling solubility of CO2 in aqueous solutions of Diisopropanolamine + 2-amino-2-methyl-1-propanol + Piperazine at high pressures
• Absorption capacity and viscosity for CO2 capture process using high concentrated PZ-DEAE aqueous solution
• Heat capacities of aqueous binary and ternary mixtures (with piperazine) of N-(2-aminoethyl)-piperazine and N,N,N'-trimethylethylenediamine at temperatures (303.2-353.2) K
• Experiments and model for the surface tension of DEAE-PZ and DEAE-MEA aqueous solutions
• Surface thermodynamics of DMA2P, DMA2P-MEA and DMA2P-PZ aqueous solutions
• Molar heat capacities of diethylenetriamine and 3-(methylamino)propylamine, their aqueous binaries, and aqueous ternaries with piperazine
• Molar heat capacity of aqueous solutions of 1,3-diaminopropane and 1,4-diaminobutane and their piperazine blends
• Carbon dioxide loading capacity in aqueous solution of Potassium salt of Proline blended with Piperazine as new absorbents
• Absorption of Carbon Dioxide into Aqueous Piperazine: Reaction Kinetics, Mass Transfer and Solubility
• Vapor Pressure and Its Temperature Dependence of 28 Organic Compounds: Cyclic Amines, Cyclic Ethers, and Cyclic and Open Chain Secondary Alcohols
• Vapor Liquid Equilibrium and Physicochemical Properties of Novel Aqueous Blends of (2-Diethylaminoethanol + Piperazine) for CO2 Appropriation
• Density and Viscosity of Partially Carbonated Aqueous Solutions Containing a Tertiary Alkanolamine and Piperazine at Temperatures between 298.15 and 353.15 K
• Physicochemical Properties of the System N,N-Dimethyl-dipropylene-diamino-triacetonediamine (EvA34), Water, and Carbon Dioxide for Reactive Absorption
• Solid Solubility in the Aqueous 2-Amino-2-methyl-propanol (AMP) Plus Piperazine (PZ) System
• Viscosity Measurement and Correlation of Unloaded and CO2-Loaded Aqueous Solutions of N-Methyldiethanolamine-Piperazine
• CO2 Heat of Absorption in Aqueous Solutions of MDEA and MDEA/Piperazine
• Solubility of N2O in and Density, Viscosity, and Surface Tension of Aqueous Piperazine Solutions
• Density and Viscosity of Aqueous Solutions of Piperazine and (2-Amino-2-methyl-1-propanol + Piperazine) from 298 to 333 K
• Solubility of Carbon Dioxide in Aqueous Solutions of Piperazine in the Low Gas Loading Region
• Density and Viscosity of Aqueous Solutions of (N-Methyldiethanolamine + Piperazine) and (2-Amino-2-methyl-1-propanol + Piperazine) from (288 to 333) K
• Critical Point and Vapor Pressure Measurements for Four Compounds by a Low Residence Time Flow Method
• Density and Viscosity of Aqueous Solutions of (2-Piperidineethanol + Piperazine) from (288 to 333) K and Surface Tension of Aqueous Solutions of (N-Methyldiethanolamine + Piperazine), (2-Amino-2-methyl-1-propanol + Piperazine), and (2-Piperidineethanol + Piperazine) from (293 to 323) K
• Density, Viscosity, and Surface Tension of Aqueous Solutions of Potassium Glycinate + Piperazine in the Range of (288.15 to 323.15) K
• CO2 Absorption in Aqueous Piperazine Solutions: Experimental Study and Modeling
• Density and Viscosity of Aqueous (Piperazine + Carbon Dioxide) Solutions
• CO2 Absorption Rate into Concentrated Aqueous Monoethanolamine and Piperazine
• Physical Properties of Aqueous Solutions of Piperazine and (2-Amino-2-methyl-1-propanol + Piperazine) from (298.15 to 333.15) K
• Densities, Viscosities, and Surface Tensions of Aqueous Mixtures of Sulfolane + Triethanolamine and Sulfolane + Diisopropanolamine
• Physical Properties of Piperazine (PZ) Activated Aqueous Solutions of 2- Amino-2-hydroxymethyl-1, 3-propanediol (AHPD + PZ)
• Aqueous Solubility of Piperazine and 2-Amino-2-methyl-1-propanol plus Their Mixtures Using an Improved Freezing-Point Depression Method
• Solubility of N2O in and Density and Viscosity of Aqueous Solutions of Piperazine, Ammonia, and Their Mixtures from (283.15 to 323.15) K
• Physical Properties of a Complex Solution of (Potassium Citrate + Piperazine) as a CO2 Capture Agent
• Density, Viscosity, and Surface Tension of Aqueous Solution of 1,4-Bis-(2-hydroxypropyl)-piperazine Sulfate
• Solubilities of CO2 in, and Densities and Viscosities of, the Piperazine + 1-Ethyl-3-methyl-imidazolium Acetate + H2O System
• Diffusion Coefficients of N2O in Aqueous Piperazine Solutions Using the Taylor Dispersion Technique from (293 to 333) K and (0.3 to 1.4) mol *dm-3
• Densities, Viscosities, and Liquid Diffusivities in Aqueous Piperazine and Aqueous (Piperazine + N-Methyldiethanolamine) Solutions
• Thermophysical Properties of Aqueous Piperazine and Aqueous (N-Methyldiethanolamine + Piperazine) Solutions at Temperatures (298.15 to 338.15) K
• Solubility of Carbon Dioxide in Aqueous Solutions of N-Methyldiethanolamine and Piperazine in the High Gas Loading Region
• Solubility of Carbon Dioxide in Aqueous Solutions of N-Methyldiethanolamine and Piperazine in the Low Gas Loading Region
• Solubility of Hydrogen Sulfide in Aqueous Solutions of Piperazine in the Low Gas-Loading Region
• Joback Method
• Aqueous Solubility Prediction Method
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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