Triacetin
C9H14O6, 218.205 g/mol. Its structure, the values that were measured, the values that were calculated, and where each one came from.
Identifiers
- Molecular formula
- C₉H₁₄O₆
- Molecular weight
- 218.205 g/mol
- Exact mass
- 218.079038 g/mol
- CC(=O)OCC(COC(C)=O)OC(C)=O
- InChI=1S/C9H14O6/c1-6(10)13-4-9(15-8(3)12)5-14-7(2)11/h9H,4-5H2,1-3H3
- URAYPUMNDPQOKB-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
- 258-259 °C
- 258.00 to 260.00 °C. @ 760.00 mm Hg
- 258 °C
- 258 °C
- 258 °C @760 [mm Hg]
- Melting Point
- -78 °C
- -78 °C
- 3 °C
- -78 °C
- Flash Point
- 280 °F (138 °C) (closed cup)
- 138 °C c.c.
- Solubility
- In water, 52,130 mg/L at 24.5 °C
- In water, 58,000 mg/L at 25 °C
- Slightly soluble in carbon disulfide; miscible with alcohol, ether, chloroform
- Miscible with benzene; very soluble in acetone
- For more Solubility (Complete) data for TRIACETIN (6 total), please visit the HSDB record page.
- 58 mg/mL at 25 °C
- Solubility in water, g/100ml at 25 °C: 7 (soluble)
- moderately soluble in water; soluble in organic solvents
- miscible (in ethanol)
- Density
- 1.1583 g/cu cm at 20 °C
- Bulk density: 9.7 lb/gal
- Relative density (water = 1): 1.16
- 1.154-1.159
- 1.1562 @25 °C
- Vapor Pressure
- 0.00248 [mmHg]
- VP: 1 mm Hg at 100 °C
- 0.00248 mm Hg at 25 °C
- Vapor pressure, Pa at 25 °C: 0.33
- LogP
- log Kow = 0.25
- 0.25
- 0.21
- 0.25
- Refractive Index
- [n]D/25 between 1,429 and 1,431
- Index of refraction = 1.4312 at 20 °C/D
- 1.424-1.432
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.
- logP
- 0.0443
- Topological polar surface area
- 78.9 Ų
- H-bond donors
- 0
- H-bond acceptors
- 6
- Rotatable bonds
- 5
- Molar refractivity
- 48.82 cm³/mol
- Fraction sp³ carbons
- 0.6667
- QED drug-likeness
- 0.4787
What it is made of
Elements
Structure
- Heavy atoms, hydrogen excluded
- 15
- Total atoms, hydrogen included
- 29
- Rings
- 0
- Aromatic rings
- 0
- Stereocentres
- 0
- Formal charge
- 0
Functional groups
Ester
Ether
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 sources also call it Glyceryl triacetate, Glycerol triacetate, Enzactin, Triacetine, Triacetylglycerol, Glycerin triacetate, Fungacetin, Glyped, Vanay, Kesscoflex TRA, Kodaflex triacetin, Triacetyl glycerine.
Structurally related
Molecules sharing this formula, or whose fingerprint is at least 40% similar to this one. Similarity is Tanimoto on Morgan fingerprints over this library only — it is a measure of structural overlap, not of how alike they behave.
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.