Substance profile
Dicofol
Dicofol is a colorless solid with a solids have slight characteristic odor.
01 · Identification
What Dicofol is
Dicofol is a colorless solid with a solids have slight characteristic odor. Its molecular formula is C14H9Cl5O and its molecular weight is 370.5 g/mol. It boils at 225 °C, melts at 77.5 °C.
Under the GHS it carries the signal word Warning. It is classed as flammable agents - 2nd degree.
Other names for Dicofol
- dicofol (ISO)
- 2,2,2-trichloro-1,1-bis(4-chlorophenyl)ethanol
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 |
|---|---|
| H312 | Harmful in contact with skin. |
| H302 | Harmful if swallowed. |
| H315 | Causes skin irritation. |
| H317 | May cause an allergic skin reaction. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P261, P264, P270, P272, P273, P280, P301, P302, P312, P313, P330, P332, P333, P352, P391, P501
03 · Physical and chemical properties
Dicofol 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 | 225 °C (437 °F) | at 760 mmHg | CAMEO |
| 180 °C (356 °F) | at 0.1 mmHg (reduced pressure) | HSDB | |
| Melting point | 77.5 °C (171.5 °F) | HSDB | |
| 79 °C (174.2 °F) | range, midpoint shown | CAMEO | |
| 77.5 °C (171.5 °F) | range, midpoint shown | ICSC | |
| Density | 1.13 g/cm³ | ICSC | |
| 1.13 g/cm³ | at 20 °C | HSDB | |
| 1.1 g/cm³ | at 20 °C, liquid | CAMEO | |
| Solubility | In water, 1.2 mg/L at 24 °C (99% purity) | at 24 °C | HSDB |
| 400 g/L in acetone, ethyl acetate and toluene at 25 °C. 36 g/L in methanol at 25 °C. 30 g/L in hexane and isopropanol at 25 °C | at 25 °C | HSDB | |
| In water, 0.8 mg/L at 25 °C | at 25 °C | HSDB | |
| Vapor pressure | 3.98e-7 mmHg | at 25 °C | HSDB |
| 4e-7 mmHg | Haz-Map | ||
| Negligible (NTP, 1992) | CAMEO | ||
| Flash point | 193 °C (379.4 °F) | open cup | HSDB |
| 48.89 °C (120 °F) | HSDB | ||
| 23.89 °C (75 °F) | CAMEO | ||
| Autoignition temperature | 530 °C (986 °F) | CAMEO | |
| Lower explosive limit (LEL) | 1.1 % by volume | for xylene solution | CAMEO |
| Upper explosive limit (UEL) | 7 % by volume | for xylene solution | CAMEO |
| Corrosivity | Slightly corrosive to metals | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Dicofol
Storage conditions
Store above 40 °F, away from feed, foodstuffs, or any body of water.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Contact with steel at elevated temp causes formation of toxic chlorine & hydrogen chloride gases.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
DICOFOL is an organochlorine bridged diphenyl. Halogenated aliphatic compounds are moderately or very reactive. Halogenated organics generally become less reactive as more of their hydrogen atoms are replaced with halogen atoms. Halogenated aliphatics are incompatible with strong oxidizing and reducing agents. Also, they are incompatible with many amines, nitrides, azo/diazo compounds, alkali metals, and epoxides. DICOFOL hydrolyzes in alkali. It is slightly corrosive to metals. Contact with steel at elevated temperatures causes formation of toxic gases. (NTP, 1992).
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Dicofol in the storage compatibility matrix →