Chemical Properties of Lactic acid (CAS 50-21-5)

InChI

InChI=1S/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6)

InChI Key

JVTAAEKCZFNVCJ-UHFFFAOYSA-N

Formula

C3H6O3

SMILES

CC(O)C(=O)O

Molecular Weight¹

90.08

CAS

50-21-5

Other Names

• (.+-.)-lactic acid
• (.+/-.)-Lactic acid
• .alpha.-hydroxypropanoic acid
• .alpha.-hydroxypropionic acid
• 1-Hydroxyethane 1-carboxylic acid
• 1-Hydroxyethanecarboxylic acid
• 2-HYDROXYPROPANOIC ACID
• 2-Hydroxypropionic acid
• DL-LACTIC ACID
• Ethylidenelactic acid
• Kyselina 2-hydroxypropanova
• Kyselina mlecna
• Milchsaure
• Milk acid
• NSC 367919
• Ordinary lactic acid
• Propanoic acid, 2-hydroxy-
• Propionic acid, 2-hydroxy-
• Purac FCC 80
• Racemic lactic acid
• Tonsillosan
• biolac
• chem-cast
• «alpha»-Hydroxypropanoic acid
• «alpha»-Hydroxypropionic acid
• «alpha»-Hydroxypropanoic acid
• «alpha»-Hydroxypropionic acid

• Δ_cH°_solid : Standard solid enthalpy of combustion (kJ/mol).
• C_p,gas : Ideal gas 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_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_fusH : Enthalpy of fusion at a given temperature (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
• 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).
• n₀ : Refractive Index.
• ρ_l : Liquid Density (kg/m³).
• I_np : Non-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
ΔcH°solid	-1362.80	kJ/mol	NIST
ΔfG°	-430.62	kJ/mol	Joback Calculated Property
ΔfH°gas	-527.57	kJ/mol	Joback Calculated Property
ΔfusH°	9.78	kJ/mol	Joback Calculated Property
ΔvapH°	61.99	kJ/mol	Joback Calculated Property
log10WS	0.45		Crippen Calculated Property
logPoct/wat	-0.548		Crippen Calculated Property
McVol	66.440	ml/mol	McGowan Calculated Property
Pc	6389.77	kPa	Joback Calculated Property
Inp	[838.00; 838.00]
Inp	838.00		NIST
Inp	838.00		NIST
Tboil	398.20	K	Liquid-...
Tc	677.91	K	Joback Calculated Property
Tfus	[290.00; 290.00]	K
Tfus	290.00	K	The pha...
Tfus	290.00 ± 2.00	K	NIST
Ttriple	290.00 ± 0.20	K	NIST
Vc	0.241	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[142.95; 169.22]	J/mol×K	[505.83; 677.91]
T(K) Ideal gas heat capacity (J/mol×K) 145 150 155 160 165 170 550 600 650
Cp,gas	142.95	J/mol×K	505.83	Joback Calculated Property
Cp,gas	147.84	J/mol×K	534.51	Joback Calculated Property
Cp,gas	152.52	J/mol×K	563.19	Joback Calculated Property
Cp,gas	156.99	J/mol×K	591.87	Joback Calculated Property
Cp,gas	161.26	J/mol×K	620.55	Joback Calculated Property
Cp,gas	165.34	J/mol×K	649.23	Joback Calculated Property
Cp,gas	169.22	J/mol×K	677.91	Joback Calculated Property
η	[0.0001047; 0.1012311]	Pa×s	[280.14; 505.83]
T(K) Dynamic viscosity (Pa×s) 0 0.02 0.04 0.06 0.08 0.1 300 400 500
η	0.1012311	Pa×s	280.14	Joback Calculated Property
η	0.0163392	Pa×s	317.75	Joback Calculated Property
η	0.0038800	Pa×s	355.37	Joback Calculated Property
η	0.0012133	Pa×s	392.99	Joback Calculated Property
η	0.0004648	Pa×s	430.60	Joback Calculated Property
η	0.0002078	Pa×s	468.22	Joback Calculated Property
η	0.0001047	Pa×s	505.83	Joback Calculated Property
ΔfusH	11.34	kJ/mol	289.90	NIST
n0	1.43940		293.15	(Liquid...
ρl	[1199.91; 1202.57]	kg/m3	[298.15; 298.20]
ρl	1202.57	kg/m3	298.15	Extract...
ρl	1199.91	kg/m3	298.20	Liquid-...

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.65]	kPa	[379.47; 584.23]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.23768e+01
Coefficient B			-3.48122e+03
Coefficient C			-9.15110e+01
Temperature range, min.			379.47
Temperature range, max.			584.23
T(K) Vapor pressure (kPa) 0 50 100 150 200 400 450 500 550
Pvap	1.33	kPa	379.47	Calculated Property
Pvap	3.23	kPa	402.22	Calculated Property
Pvap	6.94	kPa	424.97	Calculated Property
Pvap	13.52	kPa	447.72	Calculated Property
Pvap	24.30	kPa	470.47	Calculated Property
Pvap	40.89	kPa	493.23	Calculated Property
Pvap	65.07	kPa	515.98	Calculated Property
Pvap	98.75	kPa	538.73	Calculated Property
Pvap	143.95	kPa	561.48	Calculated Property
Pvap	202.65	kPa	584.23	Calculated Property
Pvap	[6.49e-03; 6753.41]	kPa	[291.15; 616.00]	KDB Vap...
Equation			ln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A			1.15361e+02
Coefficient B			-1.18844e+04
Coefficient C			-1.41753e+01
Coefficient D			1.00178e-05
Temperature range, min.			291.15
Temperature range, max.			616.00
T(K) Vapor pressure (kPa) 0 1000 2000 3000 4000 5000 6000 7000 300 400 500 600
Pvap	6.49e-03	kPa	291.15	Calculated Property
Pvap	0.14	kPa	327.24	Calculated Property
Pvap	1.50	kPa	363.34	Calculated Property
Pvap	9.93	kPa	399.43	Calculated Property
Pvap	46.37	kPa	435.53	Calculated Property
Pvap	168.07	kPa	471.62	Calculated Property
Pvap	505.01	kPa	507.72	Calculated Property
Pvap	1319.35	kPa	543.81	Calculated Property
Pvap	3104.12	kPa	579.91	Calculated Property
Pvap	6753.41	kPa	616.00	Calculated Property

Similar Compounds

Find more compounds similar to Lactic acid.

Mixtures

• Lactic acid + Carbon dioxide
• Lactic acid + 1-Butanol + Water
• Lactic acid + 1-Pentanol + Water
• Lactic acid + 1-Hexanol + Water
• Methyl Isobutyl Ketone + Lactic acid + Water
• Lactic acid + 1-Decanol + Water
• Lactic acid + 1-Octanol + Water
• Monoethanolamine + Lactic acid + N-(2-Hydroxyethyl)lactamide
• Lactic acid + Guanidine, N,N,N',N'-tetramethyl-
• Betaine + Lactic acid + Water
• Lactic acid + Histidine + Water
• Lactic acid + Water
• Lactic acid + Choline chloride
• Lactic acid + Choline chloride + Water
• Lactic acid + Choline chloride + Carbon dioxide
• Proline + Lactic acid
• Betaine + Lactic acid
• Toluene + Lactic acid + Tridodecylamine
• Lactic acid + 1-Octanol + Tridodecylamine
• Methyl Isobutyl Ketone + Lactic acid + Tridodecylamine

Find more mixtures with Lactic acid.

Sources

• KDB Vapor Pressure Data
• Crippen Method
• Crippen Method
• The phase envelopes of alternative solvents (ionic liquid, CO2) and building blocks of biomass origin (lactic acid, propionic acid)
• A new low transition temperature mixture (LTTM) formed by choline chloride + lactic acid: Characterization as solvent for CO2 capture
• Liquid-liquid equilibrium data for ternary systems of water + lactic acid + C4-C7 alcohols at 298.2 K and atmospheric pressure
• Liquid-liquid equilibria of water + lactic acid + methyl isobutyl ketone
• Acoustic, volumetric, transport, optical and rheological properties of benzyltripropylammonium based Deep Eutectic Solvents
• (Liquid + liquid) equilibria of (water + lactic acid + alcohol) ternary systems
• Physical properties of seven deep eutectic solvents based on L-proline or betaine
• Specific Heat Capacities of Two Functional Ionic Liquids and Two Functional Deep Eutectic Solvents for the Absorption of SO2
• Synthesis and Physical and Thermodynamic Properties of Lactic Acid and Malic Acid-Based Natural Deep Eutectic Solvents
• Extraction of Carboxylic Acids from Aqueous Solutions by Using [BMim][NTf2] and Salting-out Agents
• Vapor Liquid Equilibria of the Mixtures Involved in the Esterification of Lactic Acid with Methanol
• Comparison of the Efficiencies of Amine Extractants on Lactic Acid with Different Organic Solvents
• Joback Method
• KDB
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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