Chemical Properties of Formic acid (CAS 64-18-6)

InChI

InChI=1S/CH2O2/c2-1-3/h1H,(H,2,3)

InChI Key

BDAGIHXWWSANSR-UHFFFAOYSA-N

Formula

CH2O2

SMILES

O=CO

Molecular Weight¹

46.03

CAS

64-18-6

Other Names

• AMINIC ACID
• Acide formique
• Acido formico
• Add-F
• Amasil
• Ameisensaeure
• BILORIN
• Collo-Bueglatt
• Collo-Didax
• FORMYLIC ACID
• Formira
• Formisoton
• HCOOH
• Hydrogen carboxylic acid
• Kwas metaniowy
• Kyselina mravenci
• Methanoic acid
• Mierenzuur
• Myrmicyl
• Rcra waste number U123
• UN 1779

• ω : Acentric Factor.
• PAff : Proton affinity (kJ/mol).
• T_ig : Autoignition Temperature (K).
• BasG : Gas basicity (kJ/mol).
• Δ_cH°_liquid : Standard liquid 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).
• μ : Dipole Moment (debye).
• η : Dynamic viscosity (Pa×s).
• LFL : Lower Flammability Limit (% in Air).
• UFL : Upper Flammability Limit (% in Air).
• T_flash,cc : Flash Point (Closed Cup Method) (K).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• R_g : Radius of Gyration.
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fH°_liquid : Liquid phase enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_fusH : Enthalpy of fusion at a given temperature (kJ/mol).
• Δ_subH : Enthalpy of sublimation at a given temperature (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
• Δ_vapH : Enthalpy of vaporization at a given temperature (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).
• NFPA Fire : NFPA Fire Rating.
• NFPA Health : NFPA Health Rating.
• P_c : Critical Pressure (kPa).
• P_triple : Triple Point Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• n₀ : Refractive Index.
• ρ_l : Liquid Density (kg/m³).
• I_np : Non-polar retention indices.
• I : Polar retention indices.
• Δ_fusS : Entropy of fusion at a given temperature (J/mol×K).
• S°_gas : Molar entropy at standard conditions (J/mol×K).
• S°_liquid : Liquid phase molar entropy at standard conditions (J/mol×K).
• γ : Surface Tension (N/m).
• 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).
• Z_c : Critical Compressibility.
• Z_ra : Rackett Parameter.
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ω	0.4730		KDB
PAff	742.00	kJ/mol	NIST
Tig	874.26	K	KDB
BasG	710.30	kJ/mol	NIST
ΔcH°liquid	[-254.60; -253.80]	kJ/mol
ΔcH°liquid	-253.80 ± 0.30	kJ/mol	NIST
ΔcH°liquid	-254.60 ± 0.30	kJ/mol	NIST
μ	1.50	debye	KDB
LFL	18.00	% in Air	KDB
UFL	57.00	% in Air	KDB
Tflash,cc	332.04	K	KDB
ΔfG°	-351.20	kJ/mol	KDB
Rg	0.1880		KDB
ΔfH°gas	[-379.20; -378.30]	kJ/mol
ΔfH°gas	-378.90	kJ/mol	KDB
ΔfH°gas	-378.60	kJ/mol	NIST
ΔfH°gas	-379.00	kJ/mol	NIST
ΔfH°gas	-379.20 ± 0.60	kJ/mol	NIST
ΔfH°gas	-378.30	kJ/mol	NIST
ΔfH°gas	-378.50 ± 0.60	kJ/mol	NIST
ΔfH°liquid	[-425.50; -424.80]	kJ/mol
ΔfH°liquid	-425.09	kJ/mol	NIST
ΔfH°liquid	-425.50 ± 0.30	kJ/mol	NIST
ΔfH°liquid	-424.80 ± 0.30	kJ/mol	NIST
ΔfusH°	4.72	kJ/mol	Joback Calculated Property
ΔvapH°	[19.90; 46.30]	kJ/mol
ΔvapH°	46.30	kJ/mol	NIST
ΔvapH°	36.00	kJ/mol	NIST
ΔvapH°	46.30 ± 0.50	kJ/mol	NIST
ΔvapH°	46.30 ± 0.50	kJ/mol	NIST
ΔvapH°	19.90	kJ/mol	NIST
IE	[10.70; 11.51]	eV
IE	11.33 ± 0.01	eV	NIST
IE	11.31	eV	NIST
IE	11.33 ± 0.00	eV	NIST
IE	11.16 ± 0.03	eV	NIST
IE	11.31 ± 0.00	eV	NIST
IE	11.30	eV	NIST
IE	11.33	eV	NIST
IE	11.35 ± 0.03	eV	NIST
IE	11.16 ± 0.03	eV	NIST
IE	11.33	eV	NIST
IE	11.05 ± 0.03	eV	NIST
IE	11.05 ± 0.01	eV	NIST
IE	11.33	eV	NIST
IE	11.50	eV	NIST
IE	11.34	eV	NIST
IE	Outlier 10.70	eV	NIST
IE	11.51	eV	NIST
log10WS	0.66		Crippen Calculated Property
logPoct/wat	-0.299		Crippen Calculated Property
McVol	32.390	ml/mol	McGowan Calculated Property
NFPA Fire	2		KDB
NFPA Health	3		KDB
Pc	7390.00	kPa	KDB
Ptriple	2.36 ± 0.01	kPa	NIST
Inp	[490.00; 543.00]
Inp	Outlier 543.00		NIST
Inp	512.00		NIST
Inp	512.00		NIST
Inp	495.00		NIST
Inp	490.00		NIST
Inp	495.00		NIST
Inp	512.00		NIST
Inp	490.00		NIST
I	[1470.00; 1543.60]
I	1510.00		NIST
I	1528.00		NIST
I	1543.60		NIST
I	1470.00		NIST
I	1470.00		NIST
I	1470.00		NIST
I	1485.00		NIST
I	1521.00		NIST
I	1492.00		NIST
I	1499.00		NIST
I	1505.00		NIST
I	1501.00		NIST
I	1532.00		NIST
I	1533.00		NIST
I	1528.00		NIST
S°gas	248.70 ± 0.42	J/mol×K	NIST
S°liquid	[128.40; 143.10]	J/mol×K
S°liquid	131.84	J/mol×K	NIST
S°liquid	128.40	J/mol×K	NIST
S°liquid	143.10	J/mol×K	NIST
Tboil	[372.00; 380.85]	K
Tboil	374.00	K	KDB
Tboil	374.15	K	Determi...
Tboil	374.05	K	Quatern...
Tboil	374.20	K	Ternary...
Tboil	374.40	K	Liquid-...
Tboil	373.60	K	Effect ...
Tboil	373.80	K	NIST
Tboil	373.85 ± 0.30	K	NIST
Tboil	373.75 ± 0.40	K	NIST
Tboil	373.63 ± 0.10	K	NIST
Tboil	Outlier 380.85 ± 5.00	K	NIST
Tboil	373.70 ± 0.40	K	NIST
Tboil	373.95 ± 0.50	K	NIST
Tboil	373.85 ± 0.20	K	NIST
Tboil	373.90 ± 0.50	K	NIST
Tboil	373.90 ± 0.50	K	NIST
Tboil	373.90 ± 0.30	K	NIST
Tboil	373.40 ± 0.60	K	NIST
Tboil	374.05 ± 0.60	K	NIST
Tboil	373.90 ± 0.20	K	NIST
Tboil	373.35 ± 0.30	K	NIST
Tboil	374.55 ± 0.50	K	NIST
Tboil	373.85 ± 0.40	K	NIST
Tboil	376.15 ± 2.00	K	NIST
Tboil	373.80 ± 0.30	K	NIST
Tboil	374.15 ± 1.00	K	NIST
Tboil	373.75 ± 1.00	K	NIST
Tboil	374.15 ± 1.50	K	NIST
Tboil	374.15 ± 1.50	K	NIST
Tboil	373.80 ± 1.00	K	NIST
Tboil	373.75 ± 1.00	K	NIST
Tboil	373.95 ± 1.00	K	NIST
Tboil	372.00 ± 1.50	K	NIST
Tboil	373.65 ± 1.00	K	NIST
Tboil	Outlier 378.45 ± 1.00	K	NIST
Tboil	Outlier 378.45 ± 1.00	K	NIST
Tc	[577.00; 588.00]	K
Tc	588.00	K	KDB
Tc	577.00 ± 30.00	K	NIST
Tc	588.00 ± 10.00	K	NIST
Tc	580.00	K	NIST
Tfus	[280.85; 282.85]	K
Tfus	281.40	K	KDB
Tfus	Outlier 282.85	K	Differe...
Tfus	281.47 ± 0.10	K	NIST
Tfus	281.50 ± 0.30	K	NIST
Tfus	281.55 ± 0.20	K	NIST
Tfus	281.40 ± 0.05	K	NIST
Tfus	280.85 ± 0.50	K	NIST
Tfus	281.55 ± 0.10	K	NIST
Tfus	282.00 ± 1.50	K	NIST
Tfus	281.70 ± 1.50	K	NIST
Tfus	281.40 ± 0.30	K	NIST
Ttriple	[281.40; 281.45]	K
Ttriple	281.45 ± 0.10	K	NIST
Ttriple	281.40 ± 0.06	K	NIST
Vc	0.125	m3/kmol	KDB
Zc	0.1889290		KDB
Zra	0.18		KDB

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[50.91; 61.87]	J/mol×K	[363.12; 534.36]
Cp,gas	50.91	J/mol×K	363.12	Joback Calculated Property
Cp,gas	52.92	J/mol×K	391.66	Joback Calculated Property
Cp,gas	54.85	J/mol×K	420.20	Joback Calculated Property
Cp,gas	56.71	J/mol×K	448.74	Joback Calculated Property
Cp,gas	58.49	J/mol×K	477.28	Joback Calculated Property
Cp,gas	60.22	J/mol×K	505.82	Joback Calculated Property
Cp,gas	61.87	J/mol×K	534.36	Joback Calculated Property
Cp,liquid	[95.40; 100.00]	J/mol×K	[290.00; 298.15]
Cp,liquid	100.00	J/mol×K	290.00	NIST
Cp,liquid	98.30	J/mol×K	291.50	NIST
Cp,liquid	95.40	J/mol×K	298.00	NIST
Cp,liquid	99.04	J/mol×K	298.15	NIST
Cp,liquid	98.10	J/mol×K	298.15	NIST
η	[0.0006770; 0.0014370]	Pa×s	[303.15; 353.15]
η	0.0014370	Pa×s	303.15	Densiti...
η	0.0012050	Pa×s	313.15	Densiti...
η	0.0010220	Pa×s	323.15	Densiti...
η	0.0008790	Pa×s	333.15	Densiti...
η	0.0007660	Pa×s	343.15	Densiti...
η	0.0006770	Pa×s	353.15	Densiti...
ΔfusH	[12.68; 12.68]	kJ/mol	[281.40; 281.40]
ΔfusH	12.68	kJ/mol	281.40	NIST
ΔfusH	12.68	kJ/mol	281.40	NIST
ΔsubH	[60.10; 62.00]	kJ/mol	[210.50; 274.50]
ΔsubH	62.00 ± 1.00	kJ/mol	210.50	NIST
ΔsubH	60.10	kJ/mol	264.00	NIST
ΔsubH	60.70	kJ/mol	266.50	NIST
ΔsubH	60.50	kJ/mol	274.50	NIST
ΔvapH	[20.30; 47.70]	kJ/mol	[290.00; 373.90]
ΔvapH	36.80	kJ/mol	290.00	NIST
ΔvapH	29.60	kJ/mol	303.00	NIST
ΔvapH	20.40	kJ/mol	315.00	NIST
ΔvapH	20.90	kJ/mol	323.00	NIST
ΔvapH	20.30	kJ/mol	323.00	NIST
ΔvapH	47.70	kJ/mol	334.50	NIST
ΔvapH	21.10	kJ/mol	338.00	NIST
ΔvapH	35.20	kJ/mol	342.00	NIST
ΔvapH	35.20	kJ/mol	346.00	NIST
ΔvapH	22.69	kJ/mol	373.80	NIST
ΔvapH	21.92	kJ/mol	373.90	KDB
Pvap	[153.70; 200.60]	kPa	[388.15; 398.15]
Pvap	153.70	kPa	388.15	Isobari...
Pvap	200.60	kPa	398.15	Isobari...
n0	[1.36990; 1.37459]		[293.10; 298.20]
n0	1.37200		293.10	Phase E...
n0	1.37110		293.15	Liquid ...
n0	1.37140		293.20	Vapor L...
n0	1.37100		293.20	Experim...
n0	1.37110		293.20	Liquid-...
n0	1.37459		298.15	Refract...
n0	1.37130		298.20	Tie-lin...
n0	1.36990		298.20	Vapor L...
ρl	[1214.10; 1226.00]	kg/m3	[288.00; 298.20]
ρl	1226.00	kg/m3	288.00	KDB
ρl	1218.50	kg/m3	293.15	Phase e...
ρl	1219.50	kg/m3	298.15	Liquid ...
ρl	1220.04	kg/m3	298.20	(Liquid...
ρl	1214.10	kg/m3	298.20	Modelin...
ρl	1220.04	kg/m3	298.20	Liquid ...
ΔfusS	45.05	J/mol×K	281.40	NIST
γ	0.04	N/m	293.20	KDB

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.11; 5728.73]	kPa	[281.55; 588.00]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.40203e+01
Coefficient B			-2.67757e+03
Coefficient C			-8.91130e+01
Temperature range, min.			281.55
Temperature range, max.			588.00
Pvap	1.11	kPa	281.55	Calculated Property
Pvap	9.01	kPa	315.60	Calculated Property
Pvap	42.23	kPa	349.65	Calculated Property
Pvap	138.53	kPa	383.70	Calculated Property
Pvap	355.26	kPa	417.75	Calculated Property
Pvap	763.37	kPa	451.80	Calculated Property
Pvap	1438.50	kPa	485.85	Calculated Property
Pvap	2452.36	kPa	519.90	Calculated Property
Pvap	3866.49	kPa	553.95	Calculated Property
Pvap	5728.73	kPa	588.00	Calculated Property
Pvap	[1.27; 7465.38]	kPa	[271.00; 580.00]	KDB Vap...
Equation			ln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A			7.89044e+01
Coefficient B			-6.67745e+03
Coefficient C			-9.79394e+00
Coefficient D			1.14316e-05
Temperature range, min.			271.00
Temperature range, max.			580.00
Pvap	1.27	kPa	271.00	Calculated Property
Pvap	7.89	kPa	305.33	Calculated Property
Pvap	32.65	kPa	339.67	Calculated Property
Pvap	102.25	kPa	374.00	Calculated Property
Pvap	263.89	kPa	408.33	Calculated Property
Pvap	594.18	kPa	442.67	Calculated Property
Pvap	1214.74	kPa	477.00	Calculated Property
Pvap	2320.20	kPa	511.33	Calculated Property
Pvap	4227.89	kPa	545.67	Calculated Property
Pvap	7465.38	kPa	580.00	Calculated Property

Similar Compounds

Find more compounds similar to Formic acid.

Mixtures

• Benzene, (1-methylethyl)- + Formic acid + Water
• Formic acid + 2-Butenedioic acid (Z)-, dimethyl ester + Water
• 1-Undecanol + Formic acid + Water
• Formic acid + 1-Butanol + Water
• Formic acid + 1-Pentanol + Water
• Formic acid + 1-Hexanol + Water
• Heptanoic acid, ethyl ester + Formic acid + Water
• Decanedioic acid, diethyl ester + Formic acid + Water
• Formic acid + Butanedioic acid, diethyl ester + Water
• Formic acid + Octanoic acid, ethyl ester + Water
• Pentanoic acid, ethyl ester + Formic acid + Water
• 1-Butanol, 3-methyl- + Formic acid + Water
• Formic acid + 1-Decanol
• Formic acid + 1-Decanol + Water
• Formic acid + Water
• Formic acid + Ethylbenzene + Water
• Naphthalene, 2,6-dimethyl- + Formic acid + Water
• Naphthalene, 2,6-dimethyl- + Formic acid
• 1-Butanol, 3-methyl-, acetate + Formic acid + Water
• 2-Hexanone, 5-methyl- + Formic acid + Water

Find more mixtures with Formic acid.

Sources

• KDB Pure (Korean Thermophysical Properties Databank)
• KDB Vapor Pressure Data
• Crippen Method
• Crippen Method
• Liquid-liquid equilibria for ternary systems of (water + carboxylic acid + 1-octanol) at 293.15 K: modeling phase equilibria using a solvatochromic approach
• Liquid liquid equilibria of ternary systems (water + carboxylic acid + cumene) at 298.15K
• Determination and correlation of liquid liquid equilibria for the (water + carboxylic acid + dimethyl maleate) ternary systems at T = 298.2K
• Liquid phase equilibria of (water + formic acid + diethyl carbonate or diethyl malonate or diethyl fumarate) ternary systems at 298.15K and atmospheric pressure
• Phase equilibria of (water + carboxylic acid + diethyl maleate) ternary liquid systems at 298.15 K
• Quaternary phase equilibrium of water-carboxylic acid mixture (formic-propionic acid or acetic-propionic acid)-solvent liquid systems at 298.15 K
• Experiment and correlation of osmotic coefficient for aqueous solution of carboxylic acids using NRTL nonrandom factor model
• Ternary liquid-liquid phase equilibria of (water-carboxylic acid-1-undecanol) systems at 298.15 K
• Liquid-liquid equilibrium data for systems containing of formic acid, water, and primary normal alcohols at T = 298.2 K
• Phase equilibrium of (water + formic or acetic acid + ethyl heptanoate) ternary liquid systems at different temperatures
• (Liquid + liquid) equilibria of the (water + carboxylic acid + dibasic esters mixture (DBE-2)) ternary systems
• Temperature dependent solubility of sodium cyclamate in selected pure solvents and binary methanol + water mixed solvents
• Thermodynamic analysis for determination of solid - liquid equilibrium of dibenzothiophene in a binary solvent of formic acid and butan-1-ol between (278.15 and 333.15) K
• Liquid-liquid equilibrium data for water + formic acid + solvent (butyl acetate, ethyl acetate, and isoamyl alcohol) at T = 291.15 K
• Modeling phase equilibria of ternary systems (water + formic acid + ester or alcohol) through UNIFAC-original, SERLAS, NRTL, NRTL-modified, and three-suffix Margules: Parameter estimation using genetic algorithm
• Understanding ion-ion and ion-solvent interactions in aqueous solutions of NMP based protic ionic liquids through partial molar properties and DFT calculations
• Solubility, liquid-liquid equilibrium and critical states for the quaternary system formic acid - ethanol - ethyl formate - water at 298.15 K and 308.15 K
• Differential scanning calorimetry determination of Solid-Liquid equilibria phase diagrams for binary monocarboxylic acids solutions
• Solubility of Dihydroxylammonium 5,5'-Bistetrazole-1,1'-diolate in (formic acid, water) and their binary solvents from 298.15 K to 333.15 K at 101.1 kPa
• Tie-line data for water- formic acid-1-decanol ternary system at T = (298.2, 303.2, 313.2, 323.2) K
• Differential scanning calorimetry determination of phase diagrams and water activities of aqueous carboxylic acid solutions
• Mutual Solubilities for the Water 2-sec-Butylphenol System and Partition Coefficients for Furfural and Formic Acid in the Water 2-sec-Butylphenol System
• Measurement and Correlation of the Solubility of Sodium 2- Chlorotoluene-4-sulfonate in Selected Pure Solvents and Aqueous Organic Solutions
• Solubilities of Dihydroxylammonium 5,5'-Bistetrazole-1,1'-diolate in Various Pure Solvents at Temperatures Between 293.15 and 323.15 K
• Influence of Salt on the Solubility and Tie-Line Data for Water + Formic Acid + Methyl Isobutyl Ketone at T = 298.15 K
• Liquid Phase Equilibria of Aqueous Mixtures of Carboxylic Acids (C1-C4) with Ethylbenzene: Thermodynamic and Mathematical Modeling
• Isobaric and Isothermal Vapor Liquid Equilibria for the Binary System of Water + Formic Acid at 99.41 kPa, 388.15 K, and 398.15 K
• Vapor Liquid Equilibrium of Gamma-Valerolactone and Formic Acid at p = 51 kPa
• Study on the Solubilities of Mononitro-Substituted Products of Nitration of m-Toluic Acid in Several Solvents at Temperatures between 297.65 and 351.75 K
• Liquid-Liquid Equilibria of Formic Acid and Furfural in a Biphasic Aqueous-Organic System: Optimization of Solvent and Amine Extractant
• Measurement and Modeling of Solid-Liquid Equilibria of l-Glutamic Acid in Pure Solvents and Aqueous Binary Mixtures
• Liquid Viscosity and Interfacial Tension of Binary and Ternary Mixtures Containing n-Octacosane by Surface Light Scattering
• Solubilities of 2,6-Dimethylnaphthalene in Six Pure Solvents and Two Binary Solvent Systems
• Refractive Index, Surface Tension, and Density of Aqueous Mixtures of Carboxylic Acids at 298.15 K
• Solubility of Forms I and II of Clopidogrel Hydrogen Sulfate in Formic Acid, N-Methylpyrrolidone, and N,N-Dimethylformamide
• Experimental and Correlational Study of Phase Equilibria in Aqueous Solutions of Formic and Butyric Acids with Isoamyl Acetate and Methyl Isoamyl Ketone at T = 298.15 K
• Liquid Phase Equilibria of Water + Formic Acid + Dimethyl Carbonate Ternary System at Several Temperatures
• Thermodynamic Models for Determination of the Solubility of Dibenzothiophene in Different Solvents at Temperatures from (278.15 to 328.15) K
• Thermodynamic Models for Determination of the Solubility of Sulfanilic Acid in Different Solvents at Temperatures from (278.15 to 328.15) K
• Liquid-Liquid Equilibria for Ternary Systems of Water + Formic Acid + Dibasic Esters
• Salt Effect on the Enthalpy of Mixing of 1,4-Dioxane + Formic Acid at 303.15 K
• Densities and Viscosities of N,N-Dimethylformamide + Formic Acid, and + Acetic Acid in the Temperature Range from (303.15 to 353.15) K
• Phase Equilibria of Binary Systems Comprising Formic Acid, N,N-Dimethylformamide, 1-Chloro-2-ethylhexane, and 2-Ethyl-1-hexanol
• Effect of Dissolved Salts on the Enthalpy of Mixing of the Methanol + Formic Acid System at 303.15 K
• Dilute Aqueous Solutions with Formate Ions: A Conductometric Study
• Joback Method
• KDB
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more. Take the time to validate and double check the source of the data.
Outlier This icon means that the value is more than 2 standard deviations away from the property mean.