Substance profile
Alachlor
Alachlor is a colorless to white crystalline solid and is odorless.
01 · Identification
What Alachlor is
Alachlor is a colorless to white crystalline solid and is odorless. Its molecular formula is C14H20ClNO2 and its molecular weight is 269.77 g/mol. It boils at 400 °C, melts at 40 °C.
Under the GHS it carries the signal word Warning.
Other names for Alachlor
- alachlor (ISO)
- 2-chloro-2',6'-diethyl-N-(methoxymethyl)acetanilide
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 |
|---|---|
| H351 | Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H302 | Harmful if swallowed. |
| H317 | May cause an allergic skin reaction. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P201, P261, P270, P272, P273, P280, P301, P308, P312, P313, P330, P333, P391, P501
03 · Physical and chemical properties
Alachlor 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 | 400 °C (752 °F) | above this value, at 759.813 mmHg | ICSC |
| 100 °C (212 °F) | at 0.02 mmHg (reduced pressure) | HSDB | |
| Melting point | 40 °C (104 °F) | ICSC | |
| 40.5 °C (104.9 °F) | range, midpoint shown | HSDB | |
| Density | 1.1 g/cm³ | ICSC | |
| 1.133 g/cm³ | OSHA | ||
| 1.133 g/cm³ | at 25 °C | HSDB | |
| Solubility | Soluble in diethyl ether, acetone, benzene, chloroform, ethanol, ethyl acetate; sparingly soluble in heptane | HSDB | |
| In water, 240 mg/L at 25 °C | at 25 °C | HSDB | |
| Solubility in water, g/100ml at 25 °C: 0.02 (very poor) | at 25 °C | ICSC | |
| Vapor pressure | 0.000022 mmHg | OSHA | |
| 0.000022 mmHg | at 25 °C | HSDB | |
| Flash point | 137 °C (278.6 °F) | ICSC | |
| Vapor density | 9.3 (air = 1) | ICSC | |
| Corrosivity | NO CORROSION TO NUMBER 316 & 304 STAINLESS STEEL, ALUMINUM & HERESITE; CORROSIVE TO STEEL & BLACK IRON | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Alachlor
Storage conditions
Minimum storage temperature: 32 °F. Incompatible materials for storage: mild steel, PVC. Keep locked up and out of the reach of children. Keep away from living quarters. Keep away from food, drink and animal feed. Keep only in the original container. Keep away from sources of ignition (sparks, flame, etc.). Keep container tightly closed in a cool, well-ventilated place. Protect from frost. ... If frozen, place in warm room and shake frequently to put back into solution. /INTRRO/
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Strong oxidizers. Corrosive to iron and steel.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
A halogenated acetamide. Organic amides/imides react with azo and diazo compounds to generate toxic gases. Flammable gases are formed by the reaction of organic amides/imides with strong reducing agents. Amides are very weak bases (weaker than water). Imides are less basic yet and in fact react with strong bases to form salts. That is, they can react as acids. Mixing amides with dehydrating agents such as P2O5 or SOCl2 generates the corresponding nitrile. The combustion of these compounds generates mixed oxides of nitrogen (NOx).
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Alachlor in the storage compatibility matrix →