Chemical Properties of 2,4-D (CAS 94-75-7)

InChI

InChI=1S/C8H6Cl2O3/c9-5-1-2-7(6(10)3-5)13-4-8(11)12/h1-3H,4H2,(H,11,12)

InChI Key

OVSKIKFHRZPJSS-UHFFFAOYSA-N

Formula

C8H6Cl2O3

SMILES

O=C(O)COc1ccc(Cl)cc1Cl

Molecular Weight¹

221.04

CAS

94-75-7

Other Names

• (2,4-Dichloor-fenoxy)-azijnzuur
• (2,4-Dichlor-phenoxy)-essigsaeure
• (2,4-Dichlorophenoxy)acetic acid
• (2,4-Dichlorophenyloxy)acetic acid
• (2,4-Dichlorphenoxy)acetic acid
• (Dichlorophenoxy)acetic acid
• 2,4-D Acid
• 2,4-D Mecoprop
• 2,4-Dichlorophenoxyethanoic acid
• 2,4-Dwuchlorofenoksyoctowy kwas
• 2,4-dichlorophenoxyacetic acid
• 94-75-7
• Acetic acid, (2,4-dichlorophenoxy)-
• Acide 2,4-dichloro phenoxyacetique
• Acido(2,4-dicloro-fenossi)-acetico
• Acme LV 4
• Acme amine 4
• Acme butyl ester 4
• Agrotect
• Amidox
• Aminopielik 50SL
• Amoxone
• Atlas D
• B-Selektonon
• BH 2,4-D
• Barrage HF
• Brush-rhap
• Chipco turf herbicide "D"
• Chloroxone
• Crop rider
• Crotilin
• D 50
• DMA-4
• Dacamine
• Debroussaillant 600
• Decamine
• Ded-Weed LV-69
• Desormone
• Dezormon
• Diclordon
• Dicopur
• Dicotox
• Dinoxol
• Dormone
• ENT 8,538
• Emulsamine E-3
• Emulsamine bk
• Envert 171
• Envert dt
• Esteron
• Esteron 44 weed killer
• Esteron 76 BE
• Esteron 99
• Esteron 99 concentrate
• Esteron brush killer
• Esterone
• Esterone four
• Estone
• Farmco
• Fernesta
• Fernimine
• Fernoxone
• Ferxone
• Foredex 75
• Formula 40
• Hedonal
• Hedonal, herbicide
• Herbidal
• Huragan
• Ipaner
• Kwas 2,4-dwuchlorofenoksyoctowy
• Kwasu 2,4-dwuchlorofenoksyoctowego
• Kyselina 2,4-dichlorfenoxyoctova
• Lawn-keep
• Macrondray
• Miracle
• Monosan
• Mota Maskros
• Moxone
• NSC 423
• Netagrone
• Netagrone 600
• Pennamine
• Pennamine D
• Phenox
• Pielik
• Planotox
• Plantgard
• RCRA waste number U240
• Rhodia
• Salvo
• Spritz-hormin/2,4-D
• Spritz-hormit/2,4-D
• Super D weedone
• Superormone concentre
• Tiller S
• Transamine
• Tributon
• Trinoxol
• U 46
• U 46DP
• U-5043
• Uniso
• Vergemaster
• Verton
• Verton 2D
• Verton D
• Vertron 2D
• Vidon 638
• Visko-rhap
• Visko-rhap low drift herbicides
• Visko-rhap low volatile 4l
• Weed tox
• Weed-B-gon
• Weed-Rhap
• Weed-ag-bar
• Weedar
• Weedar-64
• Weedatul
• Weedez wonder bar
• Weedone
• Weedone LV4
• Weedtrol
• dichlorophenoxyacetic acid
• ethanoic acid, 2,4-dichlorophenoxy-

• 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_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).
• 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).
• 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).
• V_c : Critical Volume (m³/kmol).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ΔfG°	-284.97	kJ/mol	Joback Calculated Property
ΔfH°gas	-423.37	kJ/mol	Joback Calculated Property
ΔfusH°	25.01	kJ/mol	Joback Calculated Property
ΔsubH°	[115.00; 125.00]	kJ/mol
ΔsubH°	115.00 ± 6.00	kJ/mol	NIST
ΔsubH°	125.00 ± 3.00	kJ/mol	NIST
ΔvapH°	71.61	kJ/mol	Joback Calculated Property
log10WS	-2.51		Aq. Sol...
logPoct/wat	2.457		Crippen Calculated Property
McVol	137.610	ml/mol	McGowan Calculated Property
Pc	3805.69	kPa	Joback Calculated Property
Inp	1702.00		NIST
Tboil	662.41	K	Joback Calculated Property
Tc	875.98	K	Joback Calculated Property
Tfus	[411.98; 414.50]	K
Tfus	411.98	K	Aq. Sol...
Tfus	414.50	K	Standar...
Tfus	412.65 ± 0.20	K	NIST
Tfus	412.80 ± 0.20	K	NIST
Vc	0.516	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[297.39; 335.82]	J/mol×K	[662.41; 875.98]
Cp,gas	297.39	J/mol×K	662.41	Joback Calculated Property
Cp,gas	305.04	J/mol×K	698.01	Joback Calculated Property
Cp,gas	312.19	J/mol×K	733.60	Joback Calculated Property
Cp,gas	318.83	J/mol×K	769.20	Joback Calculated Property
Cp,gas	324.98	J/mol×K	804.79	Joback Calculated Property
Cp,gas	330.64	J/mol×K	840.39	Joback Calculated Property
Cp,gas	335.82	J/mol×K	875.98	Joback Calculated Property
η	[0.0000662; 0.0012073]	Pa×s	[424.20; 662.41]
η	0.0012073	Pa×s	424.20	Joback Calculated Property
η	0.0006050	Pa×s	463.90	Joback Calculated Property
η	0.0003380	Pa×s	503.60	Joback Calculated Property
η	0.0002056	Pa×s	543.30	Joback Calculated Property
η	0.0001339	Pa×s	583.01	Joback Calculated Property
η	0.0000920	Pa×s	622.71	Joback Calculated Property
η	0.0000662	Pa×s	662.41	Joback Calculated Property
ΔfusH	[32.00; 35.33]	kJ/mol	[412.50; 416.20]
ΔfusH	35.33	kJ/mol	412.50	NIST
ΔfusH	32.00	kJ/mol	416.20	NIST
ΔsubH	123.00 ± 2.00	kJ/mol	366.50	NIST

Similar Compounds

Find more compounds similar to 2,4-D.

Sources

• Crippen Method
• Standard Sublimation Enthalpies of some dichlorophenoxy acids and their methyl esters
• Joback Method
• Aqueous Solubility Prediction Method
• McGowan Method
• NIST Webbook

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