8.20846

Naphthalene

for synthesis

• Synonym(s): Naphthalene
• Empirical Formula (Hill Notation): C₁₀H₈
• CAS Number: 91-20-3
• Molecular Weight: 128.17
• MDL number: MFCD00001742
• UNSPSC Code: 12352005
• EC Index Number: 202-049-5

Properties

• vapor pressure: 0.072 hPa ( 20 °C)
• Quality Level: 200
• Assay: ≥99.0% (GC)
• form: solid
• autoignition temp.: 540 °C
• potency: >2500 mg/kg LD₅₀, skin (Rat)
• expl. lim.: 0.9-5.9 % (v/v)
• bp: 218 °C/1013 hPa
• mp: 79-82 °C
• transition temp: flash point 79 °C
• solubility: slightly soluble ≥0.038 g/L
• density: 1.085 g/cm³ at 20 °C
• bulk density: 550‑600 mg/m³
• storage temp.: 2-30°C
• InChI: 1S/C10H8/c1-2-6-10-8-4-3-7-9(10)5-1/h1-8H
• InChI key: UFWIBTONFRDIAS-UHFFFAOYSA-N

Description

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Melting range (lower value): ≥ 79 °C
Melting range (upper value): ≤ 82 °C
Identity (IR): passes test

Safety Information

• Pictograms: GHS02,GHS07,GHS08,GHS09
• Signal Word: Warning
• Hazard Statements: H228 - H302 - H351 - H410
• Precautionary Statements: P202 - P210 - P240 - P273 - P301 + P312 - P308 + P313
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Flam. Sol. 2
• Storage Class Code: 4.1B - Flammable solid hazardous materials
• WGK: WGK 3
• Flash Point(F): 173.3 °F - closed cup
• Flash Point(C): 78.5 °C - closed cup