CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Pirimiphos-methyl is a yellow liquid. Corrosive to tin and mild steel. Used as an insecticide. |
|---|---|
| Color/Form | Straw-colored liquid |
| Boiling Point | Decomposes on distillation |
| Melting Point | MP: 15-18 °C /Technical/ |
| Solubility | In water (mg/L at 20 °C): 11 (pH 5); 10 (pH 7); 9.7 (pH 9) |
| Density | 1.17 at 20 °C |
| Vapor Pressure | 0.000015 [mmHg] |
| LogP | log Kow = 4.12 |
| Decomposition | When heated to decomposition it emits very toxic fumes of /nitrogen, phosphorus, and sulfur oxides/. |
| Refractive Index | Index of refraction: 1.527 at 25 °C/D |
| Dissociation Constants | pKa = 4.30 |
| Collision Cross Section | 167.15 Ų [M+H]+ |
| Kovats Retention Index | 1897 1909 1911 1922 1914 1919 1934.3 1916.5 1915.8 1906 1918.5 1926.7 1910 1915 1919 1919.6 |
| Chemical Classes | Pesticides -> Organophosphate Insecticides |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Exclamation Mark Irritant GHS07  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H370:Specific target organ toxicity, single exposure H372:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P273:Avoid release to the environment. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. |
COMPUTED DESCRIPTORS
| Molecular Weight | 305.34 g/mol |
|---|---|
| XLogP3 | 4.2 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 7 |
| Rotatable Bond Count | 7 |
| Exact Mass | 305.09629968 g/mol |
| Monoisotopic Mass | 305.09629968 g/mol |
| Topological Polar Surface Area | 88.8 Ų |
| Heavy Atom Count | 19 |
| Formal Charge | 0 |
| Complexity | 310 |
| 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
Pirimiphos-methyl is a yellow liquid. Corrosive to tin and mild steel. Used as an insecticide.