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| Naphthalene is a raw material in pesticide production. It can be manufactured into methylenaphthol and ethylenaphthol, and can also be oxidized into phthalic anhydride, which further generates phthalimide. It can also react with chloroacetic acid to form naphthalenoic acid. It can be used as an intermediate for pesticides such as imidathion phosphine and methylenetin, herbicides such as mazhalong and diquat, plant growth regulators such as naphthalenoic acid and naphthoxyacetic acid, etc. | |||||||||
91-20-3
futurechemical
91-20-3
Naphthalene Basic information | |
description Chemical Properties Uses Health Hazard Toxicity | |
Product Name: | Naphthalene |
CAS: | 91-20-3 |
MF: | C10H8 |
MW: | 128.17 |
EINECS: | 202-049-5 |
Mol File: | 91-20-3.mol |
Naphthalene Chemical Properties | |
Melting point | 80-82 °C (lit.) |
Boiling point | 218 °C (lit.) |
bulk density | 550-600mg/m3 |
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 | 146,370 |
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℃） |
InChI | 1S/C10H8/c1-2-6-10-8-4-3-7-9(10)5-1/h1-8H |
InChIKey | UFWIBTONFRDIAS-UHFFFAOYSA-N |
SMILES | c1ccc2ccccc2c1 |
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) |
