Substance profile
Dazomet
Dazomet is colorless crystals with a weakly pungent odor.
01 · Identification
What Dazomet is
Dazomet is colorless crystals with a weakly pungent odor. Its molecular formula is C5H10N2S2 and its molecular weight is 162.3 g/mol. It melts at 106 °C.
Under the GHS it carries the signal word Warning.
Other names for Dazomet
- dazomet (ISO)
- tetrahydro-3,5-dimethyl-1,3,5-thiadiazine-2-thione
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. |
| H319 | Causes serious eye irritation. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P264, P270, P273, P280, P301, P305, P312, P313, P330, P337, P338, P391, P501
03 · Physical and chemical properties
Dazomet 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 |
|---|---|---|---|
| Melting point | 106 °C (222.8 °F) | HSDB | |
| 120 °C (248 °F) | decomposes | CAMEO | |
| Density | 1.3 g/cm³ | ICSC | |
| 1.3 g/cm³ | at 20 °C | HSDB | |
| Solubility | Reacts with water; soluble in ethanol. | HSDB | |
| SOL IN WATER (0.12% AT 25 °C); INSOL IN CARBON TETRACHLORIDE | at 25 °C | HSDB | |
| Vapor pressure | 0.0000028 mmHg | at 20 °C | HSDB |
| 2.77 mmHg | at 20 °C | CAMEO | |
| 0.0000028 mmHg | Haz-Map | ||
| Flash point | 93 °C (199.4 °F) | HSDB | |
| Corrosivity | Non-corrosive in the dry state | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Source notes
Further notes on Dazomet
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
Organic solvents 0.0 g/100 ml, isopropanol 0.5 g/100 ml, xylene 1.1 g/100 ml, ethanol 3.0 g/100 ml, ethylene glycol 3.0 g/100 ml, ethylene glycol monomethyl ether 5.0 g/100 ml, dioxane 8.0 g/100 ml, acetone 13.1 g/100 ml, trichloroethylene 30.0 g/100 ml, chloroform 30 g/100 ml, dimethyl sulfoxide, 30 g/100 ml, dimethyl formamide 30 g/100 ml.
Source: HSDB
05 · Handling and storage
Storing and handling Dazomet
Storage conditions
Store in cool, dry place out of children's reach.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
DAZOMET decomposes in water, dilute acids and alcohol. (NTP, 1992)
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Dazomet in the storage compatibility matrix →