Description
Naphthalene Chemical Properties
| Melting point | 80-82 °C (lit.) |
| Boiling point | 218 °C (lit.) |
| density | 0.99 |
| vapor density | 4.4 (vs air) |
| vapor pressure | 0.03 mm Hg ( 25 °C) |
| refractive index | 1.5821 |
| Fp | 174 °F |
| storage temp. | Store below +30°C. |
| solubility | methanol: soluble50mg/mL, clear, colorless |
| form | Faint beige to brown to salmon red powder |
| color | White to almost white |
| Specific Gravity | 1.145 |
| Odor | at 10.00 % in benzyl benzoate. pungent dry tarry |
| Odor Type | pungent |
| explosive limit | 0.9-5.9%(V) |
| Water Solubility | 30 mg/L (25 ºC) |
| Merck | 14,6370 |
| BRN | 1421310 |
| Henry’s Law Constant | 5.64 at 25 °C (thermodynamic method-GC/UV spectrophotometry, Altschuh et al., 1999) |
| Exposure limits | TLV-TWA 10 ppm （～50 mg/m3) (ACGIH, MSHA, and OSHA); STEL 15 ppm (～75 mg/m3) (ACGIH); IDLH 500 ppm. |
| Dielectric constant | 2.5（85℃） |
| InChIKey | UFWIBTONFRDIAS-UHFFFAOYSA-N |
| LogP | 3.7 at 25℃ |
| CAS DataBase Reference | 91-20-3(CAS DataBase Reference) |
| NIST Chemistry Reference | Naphthalene(91-20-3) |
| IARC | 2B (Vol. 82) 2002 |
| EPA Substance Registry System | Naphthalene (91-20-3) |
Safety Information
| Hazard Codes | Xn,N,F,T |
| Risk Statements | 22-40-50/53-67-65-38-11-39/23/24/25-23/24/25-52/53-20 |
| Safety Statements | 36/37-46-60-61-62-45-16-7-33-25-9 |
| RIDADR | UN 1334 4.1/PG 3 |
| WGK Germany | 3 |
| RTECS | QJ0525000 |
| Autoignition Temperature | 978 °F |
| TSCA | Yes |
| HazardClass | 4.1 |
| PackingGroup | III |
| HS Code | 29029010 |
| Hazardous Substances Data | 91-20-3(Hazardous Substances Data) |
| Toxicity | Acute oral LD50 for guinea pigs 1,200 mg/kg, mice 533 mg/kg, rats 1,250 mg/kg (quoted, RTECS, 1985). |
| IDLA | 250 ppm |
Reviews
There are no reviews yet.