Substance profile
Chlormequat Chloride
Chlormequat Chloride is a white cyrstalline solid with a typical amine odor.
01 · Identification
What Chlormequat Chloride is
Chlormequat Chloride is a white cyrstalline solid with a typical amine odor. It melts at 239 °C.
Under the GHS it carries the signal word Warning.
Other names for Chlormequat Chloride
- chlormequat chloride (ISO)
- 2-chloroethyltrimethylammonium chloride
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. |
Precautionary statements: P270, P280, P301, P302, P312, P330, P352
03 · Physical and chemical properties
Chlormequat Chloride 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 | 239 °C (462.2 °F) | decomposes, decomposes | HSDB |
| 245 °C (473 °F) | decomposes | CAMEO | |
| Density | 1.145 g/cm³ | range, midpoint shown, at 20 °C | HSDB |
| Solubility | SOL IN LOWER ALC SUCH AS METHANOL; INSOL IN ETHER & HYDROCARBONS; WATER SOLUBILITY 74% @ 20 °C | at 20 °C | HSDB |
| In ethanol, 320 g/kg at 20 °C. | at 20 °C | HSDB | |
| Solubility in methanol: >25 kg/kg at 20 °C, dichloroethane, ethyl acetate, n-heptane, and acetone <1, chloroform 0.3 (all in g/kg, 20 °C). | at 20 °C | HSDB | |
| Vapor pressure | 7.5e-8 mmHg | at 20 °C | HSDB |
| Lower explosive limit (LEL) | Contact with strong oxidizers may cause fire and explosions. | HSDB | |
| Corrosivity | Aqueous solutions are corrosive to metal | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Chlormequat Chloride
Storage conditions
Pesticide Storage: Store in original container. DO NOT store below freezing temperatures.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Should not be combined with dinoseb, cyanazine, or other contact herbicides.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
CHLORMEQUAT CHLORIDE is incompatible with strong oxidizing agents. It is corrosive to unprotected metals. (NTP, 1992)
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Chlormequat Chloride in the storage compatibility matrix →