Substance profile
Crufomate
Crufomate is a white crystalline solid.
01 · Identification
What Crufomate is
Crufomate is a white crystalline solid. Its molecular formula is C12H19ClNO3P and its molecular weight is 291.71 g/mol. It melts at 60 °C.
Under the GHS it carries the signal word Warning.
Other names for Crufomate
- crufomate (ISO)
- 4-tert-butyl-2-chlorophenyl methyl methylphosphoramidate
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. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P270, P273, P280, P301, P302, P312, P330, P352, P391, P501
03 · Physical and chemical properties
Crufomate 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 | 117.5 °C (243.5 °F) | range, midpoint shown, at 0.01 mmHg (reduced pressure) | HSDB |
| Decomposes | decomposes | NIOSH | |
| Decomposes (NIOSH, 2024) | decomposes | CAMEO | |
| Melting point | 60 °C (140 °F) | NIOSH | |
| Density | 1.16 g/cm³ | NIOSH | |
| 1.5 g/cm³ | ICSC | ||
| Solubility | PRACTICALLY INSOLUBLE IN LIGHT PETROLEUM, WATER; SOL IN ACETONE, BENZENE, CARBON TETRACHLORIDE; SOL UB ACETONE, BENZENE, CARBON TETRACHLORIDE | HSDB | |
| READILY SOL IN ACETONITRILE | HSDB | ||
| SOL IN ETHYL ETHER, METHANOL, CYCLOHEXANE | HSDB | ||
| Vapor pressure | 0.01 mmHg | OSHA | |
| 0.0007951 mmHg | at 25 °C | ICSC | |
| 0.01 mmHg | at 117 °C | HSDB | |
| Lower explosive limit (LEL) | Combustible Solid | NIOSH |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Crufomate
Storage conditions
Rooms used for storage only should be soundly constructed & fitted with secure locks. Floors should be kept clear & pesticides clearly identified. If repacking is carried out in storage rooms, adequate light should be available; floors should be impervious & sound ... . /Pesticides/
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Strongly alkaline & strongly acidic media. [Note: Unstable over long periods in aqueous preparations or above 140 °F.]
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
CRUFOMATE is combustible; liquid formulations containing organic solvents may be flammable. Incompatible with strongly basic and strongly acidic materials. Unstable over long periods in aqueous preparations or above 140 °F. Emits toxic fumes of POx, Cl2 and NOx when heated to decomposition (Hazardous Chemicals Desk Reference p. 272 (1987)).
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Crufomate in the storage compatibility matrix →