Substance profile
1,2-Dichloropropane
1,2-Dichloropropane is a colorless liquid with a sweet odor.
01 · Identification
What 1,2-Dichloropropane is
1,2-Dichloropropane is a colorless liquid with a sweet odor. Its molecular formula is C3H6Cl2 and its molecular weight is 112.98 g/mol. It boils at 96.7 °C, melts at -100 °C, is miscible with water.
Under the GHS it carries the signal word Danger. It is classed as hazardous Air Pollutants (HAPs).
Other names for 1,2-Dichloropropane
- propylene dichloride
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 |
|---|---|
| H225 | Highly flammable liquid and vapour. |
| H350 | May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H332 | Harmful if inhaled. |
| H302 | Harmful if swallowed. |
Precautionary statements: P201, P210, P233, P241, P242, P260, P270, P271, P280, P301, P304, P308, P312, P313, P330, P403
03 · Physical and chemical properties
1,2-Dichloropropane 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 | 96.67 °C (206 °F) | NIOSH | |
| 96 °C (204.8 °F) | ICSC | ||
| Melting point | -100.4 °C (-148.7 °F) | HSDB | |
| -100.56 °C (-149 °F) | NIOSH | ||
| -100 °C (-148 °F) | CAMEO | ||
| Density | 1.16 g/cm³ | NIOSH | |
| 1.158 g/cm³ | at 20 °C | CAMEO | |
| 1.159 g/cm³ | at 25 °C | HSDB | |
| Solubility | Sol in alcohol, ether, benzene and chloroform | HSDB | |
| Miscible with org solvents | HSDB | ||
| In water, 2,800 mg/l @ 25 °C | at 25 °C | HSDB | |
| Vapor pressure | 40 mmHg | NIOSH | |
| 40 mmHg | at 19.39 °C | CAMEO | |
| 53.3 mmHg | at 25 °C | HSDB | |
| Flash point | 15.56 °C (60 °F) | HSDB | |
| Autoignition temperature | 557.22 °C (1035 °F) | HSDB | |
| 557 °C (1034.6 °F) | ICSC | ||
| Lower explosive limit (LEL) | 3.4 % by volume | HSDB | |
| Upper explosive limit (UEL) | 14.5 % by volume | HSDB | |
| Vapor density | 3.9 (air = 1) | HSDB | |
| Odor threshold | ... Human subjects described the odor as "strong" at 130 to 190 ppm & "not noticeable" at 15 to 23 ppm. | HSDB | |
| Odor Threshold Low: 0.26 [ppm] | Haz-Map | ||
| Odor Threshold High: 0.52 [ppm] | Haz-Map | ||
| Corrosivity | ... It will attack some forms of plastics, rubber, & coatings. | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling 1,2-Dichloropropane
Incompatible materials
Contact with ... strong acids may cause decomposition. ... With strong oxidizing agents may cause fires or explosions.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
1,2-DICHLOROPROPANE reacts with strong oxidizers and strong acids. It also reacts with aluminum. When confined, this reaction can lead to an explosion. It is incompatible with bases and aluminum alloys. It will attack some forms of plastics, rubber and coatings. (NTP, 1992)
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check 1,2-Dichloropropane in the storage compatibility matrix →