Peracetic Acid
C2H4O3, 76.051 g/mol. Its structure, the values that were measured, the values that were calculated, and where each one came from.
Identifiers
- Molecular formula
- C₂H₄O₃
- Molecular weight
- 76.051 g/mol
- Exact mass
- 76.016044 g/mol
- IUPAC name
- ethaneperoxoic acid
- CC(=O)OO
- InChI=1S/C2H4O3/c1-2(3)5-4/h4H,1H3
- KFSLWBXXFJQRDL-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
- 221 °F at 760 mmHg (EPA, 1998)
- 110 °C
- Melting Point
- -22 to 32 °F (EPA, 1998)
- -0.2 °C
- Density
- 1.226 at 59 °F (EPA, 1998) - Denser than water; will sink
- 1.226 g/cu cm at 15 °C
- Solubility
- Very soluble in ether, sulfuric acid; soluble in ethanol
- Miscible with water /1.0X10+6 mg/L/ at 25 °C
- Vapor Pressure
- 14.5 [mmHg]
- 14.5 mm Hg at 25 °C
- Flash Point
- 105 °F Peracetic Acid, 60% Acetic Acid Solution (EPA, 1998)
- 105 °F (40.6 °C) (open cup)
- Viscosity
- 3.280 cP at 78 °F
- Refractive Index
- Index of refraction = 1.3974 at 20 °C/D
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
- 76.05 g/mol
- Exact mass
- 76.016043985 Da
- XLogP3
- -0.4
- Polar surface area
- 46.5 Ų
- Complexity
- 40
- H-bond donors
- 1
- H-bond acceptors
- 3
- logP
- 0.0225
- Topological polar surface area
- 46.53 Ų
- H-bond donors
- 1
- H-bond acceptors
- 3
- Rotatable bonds
- 0
- Molar refractivity
- 14.3948 cm³/mol
- Fraction sp³ carbons
- 0.5
- QED drug-likeness
- 0.3266
What it is made of
Elements
Structure
- Heavy atoms, hydrogen excluded
- 5
- Total atoms, hydrogen included
- 9
- Rings
- 0
- Aromatic rings
- 0
- Stereocentres
- 0
- Formal charge
- 0
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 ethaneperoxoic acid.
The sources also call it Peroxyacetic acid, Ethaneperoxoic acid, Estosteril, Acetyl hydroperoxide, Peroxoacetic acid, Acetic peroxide, Monoperacetic acid, Osbon AC, Proxitane 4002, Desoxon 1, Ethaneperoxic acid.
Structurally related
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.