134-32-7
Product Name:
1-Naphthylamine
Formula:
C10H9N
Synonyms:
α-Naphthylamine;1-Aminonaphthalene;1-Naphthylamine;1-Naphthylamine solution
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Alpha-naphthylamine appears as a crystalline solid or a solid dissolved in a liquid. Insoluble in water and denser than water. Contact may slightly irritate skin, eyes and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals. |
|---|---|
| Color/Form | Needles from ethanol (aq) or ether |
| Odor | Ammonia-like odor. |
| Boiling Point | 574 °F at 760 mmHg (NTP, 1992) |
| Melting Point | 122 °F (NTP, 1992) |
| Flash Point | 315 °F (NTP, 1992) |
| Solubility | less than 1 mg/mL at 66 °F (NTP, 1992) |
| Density | 1.12 at 77 °F (USCG, 1999) - Denser than water; will sink |
| Vapor Density | 4.93 (NTP, 1992) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | 1 mmHg at 219.7 °F ; 5 mmHg at 279.9 °F (NTP, 1992) |
| LogP | log Kow = 2.25 |
| Henry's Law Constant | Henry's Law constant = 4.63X10-7 atm-cu m/mol @ 25 °C |
| Stability/Shelf Life | Oxidizes in air |
| Autoignition Temperature | 905 °F (NTP, 1992) |
| Decomposition | The substance decomposes on burning producing nitrogen oxides and carbon monoxide. |
| Heat of Combustion | -15,290 BTU/LB= -8,495 CAL/G= -355.4X10+5 J/KG |
| pH | Weak base |
| Ionization Potential | 7.30 eV |
| Ionization Efficiency | Positive |
| Refractive Index | INDEX OF REFRACTION: 1.67034 @ 51 °C/D; MAX ABSORPTION (DIL ALCOHOL): 242 NM (LOG E= 4.27); 320 NM (LOG E= 3.71) |
| Dissociation Constants | pKa of 3.92 at 25 °C |
| Kovats Retention Index | 1495.1 1531 1515.7 1531 |
| Other Experimental Properties | Sublimes; volatile with steam; reduces warm ammoniacal silver nitrate |
| Chemical Classes | Nitrogen Compounds -> Naphthylamines |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P363:Wash contaminated clothing before reuse. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
COMPUTED DESCRIPTORS
| Molecular Weight | 143.18 g/mol |
|---|---|
| XLogP3 | 2.2 |
| 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
Alpha-naphthylamine appears as a crystalline solid or a solid dissolved in a liquid. Insoluble in water and denser than water. Contact may slightly irritate skin, eyes and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals.