Chemical Properties of Oxalic acid (CAS 144-62-7)

InChI

InChI=1S/C2H2O4/c3-1(4)2(5)6/h(H,3,4)(H,5,6)

InChI Key

MUBZPKHOEPUJKR-UHFFFAOYSA-N

Formula

C2H2O4

SMILES

O=C(O)C(=O)O

Molecular Weight¹

90.03

CAS

144-62-7

Other Names

• Acide oxalique
• Acido ossalico
• Aktisal
• Aquisal
• Ethane-1,2-dioic acid
• Ethanedioic acid
• Ethanedionic acid
• HOOCCOOH
• Kyselina stavelova
• NCI-C55209
• NSC 62774
• Oxaalzuur
• Oxalsaeure
• Oxiric acid

• Δ_cH°_solid : Standard solid enthalpy of combustion (kJ/mol).
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• C_p,solid : Solid phase heat capacity (J/mol×K).
• η : Dynamic viscosity (Pa×s).
• 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_subH : Enthalpy of sublimation at a given temperature (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_vap : Vapor pressure (kPa).
• I_np : Non-polar retention indices.
• S°_{solid,1 bar} : Solid phase molar entropy at standard conditions (J/mol×K).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• V_c : Critical Volume (m³/kmol).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ΔcH°solid	[-253.50; -242.90]	kJ/mol
ΔcH°solid	-242.90 ± 0.92	kJ/mol	NIST
ΔcH°solid	-253.50 ± 0.46	kJ/mol	NIST
ΔfG°	-565.52	kJ/mol	Joback Calculated Property
ΔfH°gas	-614.23	kJ/mol	Joback Calculated Property
ΔfH°solid	[-829.94; -828.93]	kJ/mol
ΔfH°solid	-828.93 ± 0.46	kJ/mol	NIST
ΔfH°solid	-829.94 ± 0.96	kJ/mol	NIST
ΔfusH°	12.31	kJ/mol	Joback Calculated Property
ΔsubH°	97.91	kJ/mol	NIST
ΔvapH°	66.90	kJ/mol	Joback Calculated Property
IE	[11.20; 11.20]	eV
IE	11.20	eV	NIST
IE	11.20	eV	NIST
IE	11.20	eV	NIST
log10WS	0.38		Aq. Sol...
logPoct/wat	-0.844		Crippen Calculated Property
McVol	53.920	ml/mol	McGowan Calculated Property
Pc	8264.46	kPa	Joback Calculated Property
Inp	748.00		NIST
S°solid,1 bar	115.60	J/mol×K	NIST
Tboil	537.26	K	Joback Calculated Property
Tc	716.26	K	Joback Calculated Property
Tfus	[374.65; 464.45]	K
Tfus	374.65	K	Aq. Sol...
Tfus	464.45 ± 1.50	K	NIST
Vc	0.198	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[107.84; 123.35]	J/mol×K	[537.26; 716.26]
T(K) Ideal gas heat capacity (J/mol×K) 110 115 120 550 600 650 700
Cp,gas	107.84	J/mol×K	537.26	Joback Calculated Property
Cp,gas	110.79	J/mol×K	567.09	Joback Calculated Property
Cp,gas	113.60	J/mol×K	596.93	Joback Calculated Property
Cp,gas	116.25	J/mol×K	626.76	Joback Calculated Property
Cp,gas	118.76	J/mol×K	656.60	Joback Calculated Property
Cp,gas	121.13	J/mol×K	686.43	Joback Calculated Property
Cp,gas	123.35	J/mol×K	716.26	Joback Calculated Property
Cp,solid	[105.90; 146.00]	J/mol×K	[298.10; 340.00]
Cp,solid	120.10	J/mol×K	298.10	NIST
Cp,solid	105.90	J/mol×K	298.15	NIST
Cp,solid	118.00	J/mol×K	323.00	NIST
Cp,solid	146.00	J/mol×K	340.00	NIST
η	[0.0000942; 0.0143582]	Pa×s	[333.80; 537.26]
T(K) Dynamic viscosity (Pa×s) 0 2.00e-3 4.00e-3 6.00e-3 8.00e-3 0.01 0.01 0.01 350 400 450 500
η	0.0143582	Pa×s	333.80	Joback Calculated Property
η	0.0042222	Pa×s	367.71	Joback Calculated Property
η	0.0015266	Pa×s	401.62	Joback Calculated Property
η	0.0006467	Pa×s	435.53	Joback Calculated Property
η	0.0003102	Pa×s	469.44	Joback Calculated Property
η	0.0001642	Pa×s	503.35	Joback Calculated Property
η	0.0000942	Pa×s	537.26	Joback Calculated Property
ΔsubH	[61.80; 90.60]	kJ/mol	[306.00; 355.50]
ΔsubH	61.80	kJ/mol	306.00	NIST
ΔsubH	90.60	kJ/mol	355.50	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.65]	kPa	[448.83; 691.18]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.20464e+01
Coefficient B			-3.82034e+03
Coefficient C			-1.23938e+02
Temperature range, min.			448.83
Temperature range, max.			691.18
T(K) Vapor pressure (kPa) 0 50 100 150 200 500 600
Pvap	1.33	kPa	448.83	Calculated Property
Pvap	3.28	kPa	475.76	Calculated Property
Pvap	7.10	kPa	502.69	Calculated Property
Pvap	13.86	kPa	529.61	Calculated Property
Pvap	24.91	kPa	556.54	Calculated Property
Pvap	41.80	kPa	583.47	Calculated Property
Pvap	66.22	kPa	610.40	Calculated Property
Pvap	99.98	kPa	637.32	Calculated Property
Pvap	144.87	kPa	664.25	Calculated Property
Pvap	202.65	kPa	691.18	Calculated Property
Pvap	[2.15; 7034.56]	kPa	[462.65; 804.00]	KDB Vap...
Equation			ln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A			1.87705e+02
Coefficient B			-1.97651e+04
Coefficient C			-2.37488e+01
Coefficient D			7.12656e-06
Temperature range, min.			462.65
Temperature range, max.			804.00
T(K) Vapor pressure (kPa) 0 1000 2000 3000 4000 5000 6000 7000 500 600 700 800
Pvap	2.15	kPa	462.65	Calculated Property
Pvap	10.91	kPa	500.58	Calculated Property
Pvap	41.14	kPa	538.51	Calculated Property
Pvap	123.58	kPa	576.43	Calculated Property
Pvap	311.75	kPa	614.36	Calculated Property
Pvap	687.16	kPa	652.29	Calculated Property
Pvap	1364.11	kPa	690.22	Calculated Property
Pvap	2496.93	kPa	728.14	Calculated Property
Pvap	4292.86	kPa	766.07	Calculated Property
Pvap	7034.56	kPa	804.00	Calculated Property

Similar Compounds

Find more compounds similar to Oxalic acid.

Mixtures

• Choline chloride + Oxalic acid
• Ethanol + Oxalic acid
• Oxalic acid + Acetic acid
• Oxalic acid + Acetone
• Oxalic acid + Ethyl Acetate
• Oxalic acid + 1-Butanol + Water
• Oxalic acid + 1-Decanol + Water
• Decanedioic acid, diethyl ester + Oxalic acid + Water
• Methyl Isobutyl Ketone + Oxalic acid + Water
• Oxalic acid + Octane + Water
• 4-Heptanone, 2,6-dimethyl- + Oxalic acid + Water
• Oxalic acid + Water

Sources

• KDB Vapor Pressure Data
• Crippen Method
• Density, transport properties and electrochemical potential windows for the 2-hydroxy-N,N,N-trimethylethanaminium chlorides based ionic liquids at several temperatures
• Experimental determination and correlation of acetaminophen solubility in aqueous solutions of choline chloride based deep eutectic solvents at various temperatures
• An odd-even effect on solubility of dicarboxylic acids in organic solvents
• Molar Heat Capacity of Selected Type III Deep Eutectic Solvents
• Effect of Hydrogen Bond Donor on the Physical Properties of Benzyltriethylammonium Chloride Based Deep Eutectic Solvents and Their Usage in 2-Ethyl-Hexyl Acetate Synthesis as a Catalyst
• Comparison of Extractability of Oxalic Acid from Dilute Aqueous Solutions Using Dioctylamine and Trioctylphosphine Oxide
• Surface Tensions and Densities of Oxalic, Malonic, Succinic, Maleic, Malic, and cis-Pinonic Acids
• Joback Method
• KDB
• Aqueous Solubility Prediction Method
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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