Substance profile
Ioxynil
Ioxynil is a colorless crystalline solid with a faint phenolic odor.
01 · Identification
What Ioxynil is
Ioxynil is a colorless crystalline solid with a faint phenolic odor. Its molecular formula is C7H3I2NO and its molecular weight is 370.91 g/mol. It melts at 200 °C.
Under the GHS it carries the signal word Danger.
Other names for Ioxynil
- ioxynil (ISO)
- 4-hydroxy-3,5-diiodobenzonitrile
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 |
|---|---|
| H361d | Suspected of damaging the unborn child. |
| H331 | Toxic if inhaled. |
| H301 | Toxic if swallowed. |
| H312 | Harmful in contact with skin. |
| H373 | May cause 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>. |
| H319 | Causes serious eye irritation. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P260, P264, P270, P271, P273, P280, P301, P302, P304, P305, P310, P312, P313, P314, P330, P337, P338, P352, P391, P501
03 · Physical and chemical properties
Ioxynil 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 | 140 °C (284 °F) | sublimes, at 0.1 mmHg (reduced pressure) | HSDB |
| Melting point | 200 °C (392 °F) | TECHNICAL PRODUCT | HSDB |
| 212.5 °C (414.5 °F) | range, midpoint shown | HSDB | |
| Solubility | SOLUBILITY IN WATER @ 20-25 °C: 22%; 14%; 10.7% | LITHIUM SALT | HSDB |
| SLIGHTLY SOL IN CHLOROFORM; SOL IN ETHER | HSDB | ||
| SOLUBILITY IN WATER: 0.005% @ 20 °C; IN CYCLOHEXANONE: 14%; IN DIMETHYLFORMAMIDE: 74% | at 20 °C | HSDB | |
| Vapor pressure | 0.0000277 mmHg | at 105 °C | HSDB |
| 7501 mmHg | below this value, at 20 °C | HSDB | |
| 1.4e-7 mmHg | Haz-Map | ||
| Corrosivity | Non-corrosive | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.