CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Xylidines is a pale-yellow to brown liquid with a weak, aromatic, amine-like odor. (NIOSH, 2022) |
|---|---|
| Color/Form | Pale yellow to a brown liquid. |
| Odor | Weak aromatic amine odor |
| Boiling Point | 415 to 439 °F at 760 mmHg (NIOSH, 2023) |
| Melting Point | -33 °F (NIOSH, 2023) |
| Flash Point | 206 °F (2,3-) (NIOSH, 2023) |
| Solubility | Slight (NIOSH, 2023) |
| Density | 0.98 (NIOSH, 2023) - Less dense than water; will float |
| Vapor Density | 4.17 (air= 1 at boiling point of xylidine) |
| Vapor Pressure | less than 1 mmHg (NIOSH, 2023) |
| LogP | 1.8-2.2 (estimated) |
| Stability/Shelf Life | Heat contributes to instability. |
| Autoignition Temperature | 520-590 °C |
| Corrosivity | Liquid xylidine will attack some forms of plastics, rubber, and coatings. |
| Ionization Potential | 7.65eV (2,4-) 7.30eV (2,6-) |
| Odor Threshold | Odor Threshold Low: 0.005 [mmHg] Odor threshold from CHEMINFO |
| Other Experimental Properties | Forms more or less sol salts with the strong mineral acids. |
| Chemical Classes | Nitrogen Compounds -> Amines, Aromatic |
COMPUTED DESCRIPTORS
| Molecular Weight | 727.1 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 6 |
| Hydrogen Bond Acceptor Count | 6 |
| Rotatable Bond Count | 0 |
| Exact Mass | 726.53489613 g/mol |
| Monoisotopic Mass | 726.53489613 g/mol |
| Topological Polar Surface Area | 156 Ų |
| Heavy Atom Count | 54 |
| Formal Charge | 0 |
| Complexity | 523 |
| 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 | 6 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Xylidines is a pale-yellow to brown liquid with a weak, aromatic, amine-like odor. (NIOSH, 2022)