CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Metaldehyde is a white-colored crystalline solid. It is insoluble in water. It is highly flammable and when ignited will give off irritating fumes. It may be toxic by ingestion and is very irritating to skin and eyes. It is used to make other chemicals. |
|---|---|
| Color/Form | Crystalline powder |
| Odor | Menthol odor |
| Boiling Point | 115 °C (sublimes) |
| Melting Point | 246.2 °C (closed capillary) |
| Flash Point | 97 °F (36 °C) (closed cup) |
| Solubility | In water, 200 mg/L at 17 °C /Polymer/ |
| Density | 1.27 at 20 °C |
| Vapor Pressure | Vapor pressure is negligible at room temperature. |
| LogP | log Kow = 0.12 |
| Stability/Shelf Life | Depolymerization occurs slowly on heating, and rapidly above 80 °C. ... |
| Decomposition | Depolymerization occurs slowly on heating, and rapidly above 80 °C. |
| Heat of Combustion | 3370 kJ/mol |
| Kovats Retention Index | 1034.7 |
| Other Experimental Properties | Depolymerization of metaldehyde to acetaldehyde begins at 80 °C and is complete above 200 °C. |
| Chemical Classes | Pesticides -> Molluscicides |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Flame Flammables GHS02  Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H228:Flammable solids H301:Acute toxicity,oral H313:Acute toxicity,dermal H330:Acute toxicity,inhalation |
| Precautionary Statement Codes |
P320:Specific treatment is urgent (see … on this label). P330:Rinse mouth. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P405:Store locked up. |
COMPUTED DESCRIPTORS
| Molecular Weight | 176.21 g/mol |
|---|---|
| XLogP3 | 1.1 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 0 |
| Exact Mass | 176.10485899 g/mol |
| Monoisotopic Mass | 176.10485899 g/mol |
| Topological Polar Surface Area | 36.9 Ų |
| Heavy Atom Count | 12 |
| Formal Charge | 0 |
| Complexity | 91 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Metaldehyde is a white-colored crystalline solid. It is insoluble in water. It is highly flammable and when ignited will give off irritating fumes. It may be toxic by ingestion and is very irritating to skin and eyes. It is used to make other chemicals.