CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Pendimethalin appears as orange-yellow crystals. Non corrosive. Used as an herbicide. |
|---|---|
| Color/Form | Orange-yellow crystal solid |
| Odor | Faint, nutty odor |
| Boiling Point | Decomposes on distillation |
| Melting Point | 56-57 °C |
| Flash Point | Flashpoint of Prowl: 92 °F (closed cup); 124 °F (open cup) /Prowl/ |
| Solubility | Soluble in most organic solvents |
| Density | 1.19 at 25 °C |
| Vapor Pressure | 0.00003 [mmHg] |
| LogP | log Kow = 5.20 |
| Henry's Law Constant | Henry's Law constant = 8.56X10-7 atm-cu m/mol at 25 °C |
| Stability/Shelf Life | Very stable in storage. Stable to acids and alkalis. Slowly decomposed by light. |
| Decomposition | When heated to decomposition it emits toxic fumes of nitroxides. |
| Corrosivity | Non-corrosive |
| Collision Cross Section | 162.6 Ų [M+H]+ [CCS Type: DT, Method: stepped-field] |
| Kovats Retention Index | 2036 1988 2013.7 |
| Other Experimental Properties | Very stable in storage; stable to acids and alkalis; slowly decomposed by light |
| Chemical Classes | Pesticides -> Herbicides, Nitroaromatic |
SAFETY INFORMATION
| Signal word | Warning |
|---|---|
| Pictogram(s) |
 Exclamation Mark Irritant GHS07  Environment GHS09 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H317:Sensitisation, Skin H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. |
COMPUTED DESCRIPTORS
| Molecular Weight | 281.31 g/mol |
|---|---|
| XLogP3 | 5.2 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 5 |
| Rotatable Bond Count | 4 |
| Exact Mass | 281.13755610 g/mol |
| Monoisotopic Mass | 281.13755610 g/mol |
| Topological Polar Surface Area | 104 Ų |
| Heavy Atom Count | 20 |
| Formal Charge | 0 |
| Complexity | 349 |
| 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
Pendimethalin appears as orange-yellow crystals. Non corrosive. Used as an herbicide.