Substance profile
DDT (ISO)
DDT (ISO) is biaxial elongated tablets, needles from 95% alcohol and is odorless.
01 · Identification
What DDT (ISO) is
DDT (ISO) is biaxial elongated tablets, needles from 95% alcohol and is odorless. Its molecular formula is C14H9Cl5 and its molecular weight is 354.5 g/mol. It boils at 260 °C, melts at 109 °C.
Under the GHS it carries the signal word Danger. It is classed as carcinogens.
Other names for DDT (ISO)
- clofenotane (INN)
- dicophane
- 1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane
- dichlorodiphenyltrichloroethane
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 |
|---|---|
| H351 | Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H301 | Toxic if swallowed. |
| H372 | Causes damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P201, P260, P270, P273, P280, P301, P308, P310, P313, P314, P330, P391, P501
03 · Physical and chemical properties
DDT (ISO) 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 | 260 °C (500 °F) | at 760 mmHg | CAMEO |
| 260 °C (500 °F) | ICSC | ||
| Melting point | 108.5 °C (227.3 °F) | HSDB | |
| 108.33 °C (227 °F) | NIOSH | ||
| 109 °C (228.2 °F) | ICSC | ||
| Density | 0.99 g/cm³ | NIOSH | |
| 1.6 g/cm³ | ICSC | ||
| 0.985 g/cm³ | range, midpoint shown | HSDB | |
| Solubility | Soluble in acetone, ether, benzene, carbon tetrachloride, kerosene, dioxane, and pyridine. | HSDB | |
| High solubility in fat (100,000 ppm) | HSDB | ||
| Vapor pressure | 2e-7 mmHg | NIOSH | |
| 1.6e-7 mmHg | at 20 °C | HSDB | |
| 1.5e-7 mmHg | at 20 °C | CAMEO | |
| Flash point | 75 °C (167 °F) | closed cup | HSDB |
| 74.72 °C (166.5 °F) | range, midpoint shown | HSDB | |
| Lower explosive limit (LEL) | Contact with strong oxidizers may cause fire and explosion hazard. | HSDB | |
| Combustible Solid | NIOSH | ||
| Odor threshold | Detection threshold in water: 0.35 ppm | HSDB | |
| Odor high 5.0725 mg/cu m; odor low 5.0725 mg/cu m. | HSDB | ||
| Corrosivity | Should not be kept in iron containers | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Source notes
Further notes on DDT (ISO)
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
Solubility
Solubility, g/100 mL solvent: 58 acetone; 78 benzene; 42 benzyl benzoate; 45 carbon tetrachloride; 74 chlorobenzene; 116 cyclohexanone; 2 g/100 ml 95% alcohol; 28 ethyl ether; 10 gasoline; 3 isopropanol; 8-10 kerosene; 75 morpholine; 11 peanut oil; 10-16 pine oil; 61 tetralin; 50 tributyl phosphate.
Source: HSDB
05 · Handling and storage
Storing and handling DDT (ISO)
Storage conditions
... Should not be kept in iron containers and should not be mixed with iron and aluminum salts nor with alkaline substances. High storage temperatures should also be avoided.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Strong oxidizers, alkalis.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
DDT may react with iron, aluminum, aluminum and iron salts, and alkalis. It is incompatible with ferric chloride and aluminum chloride. It can also react with strong oxidizing materials. (NTP, 1992).
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check DDT (ISO) in the storage compatibility matrix →