Substance profile
Dinoseb
Dinoseb is yellow crystals with a pungent odor.
01 · Identification
What Dinoseb is
Dinoseb is yellow crystals with a pungent odor. It boils at 332 °C, melts at 40 °C.
Under the GHS it carries the signal word Danger. It is classed as teratogens.
Other names for Dinoseb
- dinoseb (ISO)
- 6-sec-butyl-2,4-dinitrophenol
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 |
|---|---|
| H360Df | May damage the unborn child. Suspected of damaging fertility. |
| H311 | Toxic in contact with skin. |
| H301 | Toxic if swallowed. |
| H319 | Causes serious eye irritation. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Supplemental EU statements: EUH044
Precautionary statements: P264, P270, P273, P280, P301, P302, P305, P310, P313, P330, P337, P338, P352, P391, P501
03 · Physical and chemical properties
Dinoseb 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 | 332 °C (629.6 °F) | ICSC | |
| Melting point | 40 °C (104 °F) | DOE PAC | |
| 40 °C (104 °F) | range, midpoint shown | HSDB | |
| Density | 1.3 g/cm³ | at 30 °C | ICSC |
| 1.2647 g/cm³ | at 45 °C | HSDB | |
| Solubility | 0.0052 G/100 G WATER; 48 G/100 G ETHANOL; 27 G/100 G N-HEPTANE; MISCIBLE IN ETHYL ETHER, TOLUENE, & XYLENE | HSDB | |
| Solubility in water, g/100ml at 20 °C: 0.005 (very poor) | at 20 °C | ICSC | |
| 0.052 mg/mL at 25 °C | at 25 °C | HMDB | |
| Vapor pressure | 0.0000525 mmHg | at 20 °C | ICSC |
| 1 mmHg | at 151.1 °C | HSDB | |
| Flash point | 15.6 °C (60.1 °F) | CLOSED CUP | HSDB |
| 22.5 °C (72.5 °F) | range, midpoint shown | CAMEO | |
| 100 °C (212 °F) | above this value | ICSC | |
| Vapor density | 7.73 (air = 1) | CAMEO | |
| 8.3 (air = 1) | ICSC | ||
| Corrosivity | CORROSIVE TO MILD STEEL IN THE PRESENCE OF WATER | HSDB | |
| Formulations are noncorrosive to equipment if cleaned after use. | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Dinoseb
Storage conditions
MATERIALS WHICH ARE TOXIC AS STORED OR WHICH CAN DECOMPOSE INTO TOXIC COMPONENTS ... SHOULD BE STORED IN A COOL WELL VENTILATED PLACE, OUT OF THE DIRECT RAYS OF THE SUN, AWAY FROM AREAS OF HIGH FIRE HAZARD, AND SHOULD BE PERIODICALLY INSPECTED. INCOMPATIBLE MATERIALS SHOULD BE ISOLATED ... .
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
DINOSEB is a powerful oxidizing agent. (NTP, 1992). It is dangerously explosive. When not water wet it is a high explosive. Dry, the material is easily ignited and it will burn very vigorously. On decomposition, nitro compounds such as this emit toxic fumes. Appear to be stable in acid solution, but are susceptible to decomposition by ultraviolet radiation in alkaline solution. [EPA, 1998].
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Dinoseb in the storage compatibility matrix →