91-59-8
Product Name:
2-Naphthylamine
Formula:
C10H9N
Synonyms:
β-Naphthylamine;2-Aminonaphthalene
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Beta-naphthylamine appears as a white to reddish colored solid in the form of flakes. Slightly soluble in hot water and denser than water. Toxic by ingestion, inhalation and skin absorption. Used to make dyes and agricultural chemicals. |
|---|---|
| Color/Form | COLORLESS CRYSTALS WHICH DARKEN IN AIR TO A REDDISH-PURPLE COLOR |
| Odor | Faint aromatic odor |
| Boiling Point | 583 °F at 760 mmHg (NTP, 1992) |
| Melting Point | 232 to 235 °F (NTP, 1992) |
| Flash Point | 315 °F (NIOSH, 2023) |
| Solubility | less than 1 mg/mL at 72 °F (NTP, 1992) |
| Density | 1.061 at 208 °F (NTP, 1992) - Denser than water; will sink |
| Vapor Density | 4.95 (NTP, 1992) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | 1 mmHg at 226.4 °F ; 5 mmHg at 286.9 °F (NTP, 1992) |
| LogP | log Kow =2.28 |
| Henry's Law Constant | Henry's Law constant = 8.10X10-8 atm-cu m/mol @ 25 °C |
| Stability/Shelf Life | Stable in cold in absence of air; oxidizes in presence of air; volatile in steam |
| Corrosivity | NOT CORROSIVE |
| pH | WEAK BASE |
| Ionization Potential | 9.71 eV |
| Odor Threshold | Odor Threshold Low: 1.4 [mmHg] Odor Threshold High: 1.9 [mmHg] Recognition odor threshold from HSDB |
| Refractive Index | Index of refraction: 1.6493 @ 98 °C/D |
| Dissociation Constants | pKa = 4.16 |
| Kovats Retention Index | 1484.8 1510.2 1535 1486 |
| Other Experimental Properties | Reduces warm ammoniacal silver nitrate |
| Chemical Classes | Nitrogen Compounds -> Naphthylamines |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Exclamation Mark Irritant GHS07  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H350:Carcinogenicity H411:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P201:Obtain special instructions before use. P273:Avoid release to the environment. P308+P313:IF exposed or concerned: Get medical advice/attention. |
COMPUTED DESCRIPTORS
| Molecular Weight | 143.18 g/mol |
|---|---|
| XLogP3 | 2.3 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 0 |
| Exact Mass | 143.073499291 g/mol |
| Monoisotopic Mass | 143.073499291 g/mol |
| Topological Polar Surface Area | 26 Ų |
| Heavy Atom Count | 11 |
| Formal Charge | 0 |
| Complexity | 133 |
| 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
Beta-naphthylamine appears as a white to reddish colored solid in the form of flakes. Slightly soluble in hot water and denser than water. Toxic by ingestion, inhalation and skin absorption. Used to make dyes and agricultural chemicals.