Substance profile
Oxamyl
Oxamyl is a white crystalline solid with a slight sulfurous odor.
01 · Identification
What Oxamyl is
Oxamyl is a white crystalline solid with a slight sulfurous odor. Its molecular formula is C7H13N3O3S and its molecular weight is 219.26 g/mol. It boils at 310 °C, melts at 101 °C.
Under the GHS it carries the signal word Danger.
Other names for Oxamyl
- oxamyl (ISO)
- N',N'-dimethylcarbamoyl(methylthio)methylenamine N-methylcarbamate
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 |
|---|---|
| H330 | Fatal if inhaled. |
| H300 | Fatal if swallowed. |
| H312 | Harmful in contact with skin. |
| H411 | Toxic to aquatic life with long lasting effects. |
Precautionary statements: P260, P270, P271, P273, P280, P301, P302, P304, P310, P312, P330, P352, P391, P501
03 · Physical and chemical properties
Oxamyl 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 | 310 °C (590 °F) | at 760 mmHg | DOE PAC |
| Decomposes on distillation | decomposes | HSDB | |
| Melting point | 101 °C (213.8 °F) | range, midpoint shown | HSDB |
| 101.11 °C (214 °F) | range, midpoint shown | CAMEO | |
| Density | 0.97 g/cm³ | at 25 °C | HSDB |
| 0.98 g/cm³ | at 25 °C | DOE PAC | |
| Solubility | Solubility (g/100 ml @ 25 °C): acetone, 67; ethanol, 33; 2-propanol, 11; methanol, 144; toluene, 1 | at 25 °C | HSDB |
| In water, 280 g/l @ 25 °C | at 25 °C | HSDB | |
| Soluble at 77.0 °F (280g/kg) (NTP, 1992) | at 25 °C | CAMEO | |
| Vapor pressure | 0.00023 mmHg | HSDB | |
| 0.00023 mmHg | at 25 °C | CAMEO | |
| Corrosivity | Non-corrosive | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Oxamyl
Storage conditions
You should protect this material from exposure to light and air, and store it under refrigerated temperatures.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Incompatible with alkaline materials.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
OXAMYL is a carbamate ester. Carbamates are chemically similar to, but more reactive than amides. Like amides they form polymers such as polyurethane resins. Carbamates are incompatible with strong acids and bases, and especially incompatible with strong reducing agents such as hydrides. Flammable gaseous hydrogen is produced by the combination of active metals or nitrides with carbamates. Strongly oxidizing acids, peroxides, and hydroperoxides are incompatible with carbamates.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Oxamyl in the storage compatibility matrix →