Substance profile
Heptan-4-one
Heptan-4-one is a stable, colorless liquid with a pleasant odor.
01 · Identification
What Heptan-4-one is
Heptan-4-one is a stable, colorless liquid with a pleasant odor. Its molecular formula is C7H14O and its molecular weight is 114.19 g/mol. It boils at 144 °C, melts at -33 °C, is miscible with water.
Under the GHS it carries the signal word Warning. It is classed as flammable agents - 2nd degree.
Other names for Heptan-4-one
- di-n-propyl ketone
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H226 | Flammable liquid and vapour. |
| H332 | Harmful if inhaled. |
Precautionary statements: P210, P233, P241, P242, P260, P271, P304, P312, P403
03 · Physical and chemical properties
Heptan-4-one properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 144 °C (291.2 °F) | HSDB | |
| 143.89 °C (291 °F) | NIOSH | ||
| 143.89 °C (291 °F) | at 760 mmHg | CAMEO | |
| Melting point | -33 °C (-27.4 °F) | HSDB | |
| -32.78 °C (-27 °F) | NIOSH | ||
| Density | 0.82 g/cm³ | NIOSH | |
| 0.8174 g/cm³ | at 20 °C | HSDB | |
| 0.8136 g/cm³ | at 20 °C | HSDB | |
| Solubility | Miscible with ethanol, ethyl ether; very soluble in ligroin | HSDB | |
| Soluble in carbon tetrachloride | HSDB | ||
| In water, 3.19X10+3 mg/L at 25 °C | at 25 °C | HSDB | |
| Vapor pressure | 5 mmHg | NIOSH | |
| 5.2 mmHg | at 20 °C | HSDB | |
| Flash point | 48.89 °C (120 °F) | closed cup | HSDB |
| 48.89 °C (120 °F) | NIOSH | ||
| Autoignition temperature | 430 °C (806 °F) | ICSC | |
| Lower explosive limit (LEL) | Class II Combustible Liquid: Fl.P. at or above 100 °F and below 140 °F. | NIOSH | |
| Explosive limits , vol% in air: | ICSC | ||
| Vapor density | 3.93 (air = 1) | HSDB | |
| 3.9 (air = 1) | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Heptan-4-one
Storage conditions
Keep container tightly closed in a dry and well-ventilated place. Store in cool place. Recommended storage temperature: 2 - 8 °C.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Vapors may form explosive mixture with air.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
DIPROPYL KETONE is incompatible with the following: Oxidizers (NIOSH, 2024).
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Heptan-4-one in the storage compatibility matrix →