Substance profile
1,3-Dichlorobenzene
1,3-Dichlorobenzene is a colorless liquid.
01 · Identification
What 1,3-Dichlorobenzene is
1,3-Dichlorobenzene is a colorless liquid. Its molecular formula is C6H4Cl2 and its molecular weight is 147 g/mol. It boils at 173 °C, melts at -24.8 °C.
Under the GHS it carries the signal word Warning. It is classed as flammable agents - 2nd degree.
Other names for 1,3-Dichlorobenzene
- 1,3-dichlorbenzene
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 |
|---|---|
| H302 | Harmful if swallowed. |
| H411 | Toxic to aquatic life with long lasting effects. |
Precautionary statements: P270, P273, P301, P312, P330, P391, P501
03 · Physical and chemical properties
1,3-Dichlorobenzene 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 | 173 °C (343.4 °F) | HSDB | |
| 172.78 °C (343 °F) | at 760 mmHg | CAMEO | |
| Melting point | -24.8 °C (-12.6 °F) | HSDB | |
| -24.78 °C (-12.6 °F) | CAMEO | ||
| Density | 1.288 g/cm³ | ICSC | |
| 1.2884 g/cm³ | at 20 °C | HSDB | |
| Solubility | Sol in ethanol, ether; very soluble in acetone | HSDB | |
| less than 1 mg/mL at 70 °F (NTP, 1992) | at 21.11 °C | CAMEO | |
| In water, 125 mg/L at 25 °C | at 25 °C | HSDB | |
| Vapor pressure | 2.15 mmHg | at 25 °C | HSDB |
| 2.1452 mmHg | at 25 °C | ICSC | |
| 1 mmHg | at 12.11 °C | CAMEO | |
| Flash point | 63.33 °C (146 °F) | CAMEO | |
| 63 °C (145.4 °F) | ICSC | ||
| Autoignition temperature | 647.78 °C (1198 °F) | CAMEO | |
| 500 °C (932 °F) | above this value | HSDB | |
| Lower explosive limit (LEL) | 2.02 % by volume | CAMEO | |
| Upper explosive limit (UEL) | 9.2 % by volume | CAMEO | |
| Vapor density | 5.08 (air = 1) | CAMEO | |
| 5.1 (air = 1) | ICSC | ||
| Critical temperature and pressure | 415.3 °C (779.5 °F) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling 1,3-Dichlorobenzene
Incompatible materials
CAN REACT VIOLENTLY WITH ALUMINUM ...
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
M-DICHLOROBENZENE is incompatible with oxidizing agents and aluminum and its alloys. Above the flash point, explosive vapor-air mixtures may be formed. (NTP, 1992)
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check 1,3-Dichlorobenzene in the storage compatibility matrix →