Ethylene Glycol
C2H6O2, 62.068 g/mol. Its structure, the values that were measured, the values that were calculated, and where each one came from.
Identifiers
- Molecular formula
- C₂H₆O₂
- Molecular weight
- 62.068 g/mol
- Exact mass
- 62.036779 g/mol
- IUPAC name
- ethane-1,2-diol
- OCCO
- InChI=1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N
Measured properties
Values somebody obtained from a sample and published. Where two sources report the same property they are both shown, in the units each used — a disagreement between them is information, and averaging it away would be inventing a number neither one gave.
- Boiling Point
- 387.7 °F at 760 mmHg (NTP, 1992)
- 197.3 °C
- Melting Point
- 9 °F (NTP, 1992)
- PEG 400: 4-8 °C; PEG 3000: 50-56 °C; PEG 3350: 53-57 °C; PEG 4000: 53-59 °C; PEG 6000:55-61 °C; PEG 8000: 55-62 °C
- Density
- 1.115 at 68 °F (USCG, 1999) - Denser than water; will sink
- 1.1135 g/cu cm AT 20 °C
- Solubility
- greater than or equal to 100 mg/mL at 63.5 °F (NTP, 1992)
- PEG 400 is miscible with water, very soluble in acetone, in alcohol and in methylene chloride, practically insoluble in fatty oils and in mineral oils; PEG 3000 and PEG 3350: very soluble in water and
- Vapor Pressure
- 0.06 mmHg at 68 °F ; 1 mmHg at 127.4 °F (NTP, 1992)
- 0.05 [mmHg]
- LogP
- log Kow = -1.36
- -1.36
- Flash Point
- 232 °F (NTP, 1992)
- 232 °F
Calculated properties
Derived from the structure rather than from a sample. These are reproducible and they are not measurements: a calculated partition coefficient and a measured one can differ by a long way, and where both exist they are listed apart on purpose.
- Molecular weight
- 62.07 g/mol
- Exact mass
- 62.03677943 Da
- XLogP3
- -1.4
- Polar surface area
- 40.5 Ų
- Complexity
- 6
- H-bond donors
- 2
- H-bond acceptors
- 2
- logP
- -1.029
- Topological polar surface area
- 40.46 Ų
- H-bond donors
- 2
- H-bond acceptors
- 2
- Rotatable bonds
- 1
- Molar refractivity
- 14.1716 cm³/mol
- Fraction sp³ carbons
- 1
- QED drug-likeness
- 0.4075
What it is made of
Elements
Structure
- Heavy atoms, hydrogen excluded
- 4
- Total atoms, hydrogen included
- 10
- Rings
- 0
- Aromatic rings
- 0
- Stereocentres
- 0
- Formal charge
- 0
Functional groups
Alcohol
The molecule in three dimensions
The drawing above is a diagram of what is bonded to what. A molecule is not flat, and the model here is one low-energy shape generated from the connectivity — useful for seeing which groups can reach each other, and not a measured structure. A real sample is a population of conformations, interconverting.
Reactions it appears in
Other names for it
The systematic name on this record is ethane-1,2-diol.
The sources also call it Ethane-1,2-diol, 1,2-ethanediol, glycol, monoethylene glycol, 2-hydroxyethanol, 1,2-Dihydroxyethane, Glycol alcohol, Ethylene alcohol, Fridex, Tescol, Norkool.
Structurally related
Seen alongside it in reaction records
Molecules that appear in the same recorded reactions as Ethylene Glycol. This says nothing about structure: most of them are the bases, solvents, ligands and catalysts the chemistry needed, and they are here because somebody put them in the same flask.
1,2-Diallyloxybenzene
used as a reactant
C₁₂H₁₄O₂, 190.242 g/mol.
1,4-Dioxane
used as a reactant
C₄H₈O₂, 88.106 g/mol.
1-(1-Naphthyl)cyclopropanecarbonitrile
used as a reactant
C₁₄H₁₁N, 193.249 g/mol.
1-(1-Naphthyl)cyclopropanecarboxylic acid
formed as a product
C₁₄H₁₂O₂, 212.248 g/mol.
(6-Bromo-2-pyridinyl)(4-methylphenyl)methanone
used as a reactant
C₁₃H₁₀BrNO, 276.133 g/mol.
Where these values came from
chemistry engine
What this page does not claim
The identifiers are what the source record holds, copied rather than recomputed. Measured values are reported as their source gave them, units and all; calculated values are marked as calculated and are not measurements. Where a field is absent the page says so, because a blank cell reads as a zero and a guessed value reads as a fact.
Nothing here is a hazard assessment, a purity statement or advice about handling a sample. A flash point quoted from a safety database is a number somebody published, not a judgement by us about whether this molecule is safe for what you intend.