Hanson Chemicals

Naphthalene-Based Compounds

Formula: C₁₀H₈
CAS Number: 91-20-3
EC Number (EINECS): 202-049-5
HS Code: 29029000
UN Number: 1334
IUPAC Name: Naphthalene
Also Known As: Tar Camphor; White Tar; Mothballs
Molecular Weight, g/mol: 128.17

Typical Specifications

Appearance: White crystalline flakes or powder
Odor: Characteristic mothball-like odor
Melting Point, °C: 80–82
Boiling Point, °C: 218
Density, g/cm³ (at 20°C): 1.14
Flash Point, °C: 79 (closed cup)
Purity, %: ≥99
Grades Available: Industrial, Technical
Packaging: 25kg bags, 50kg drums

Applications / Uses

Primary Applications

  • Production of phthalic anhydride (key plasticizer intermediate)

  • Raw material for synthetic resins, dyes, and surfactants

  • Used as intermediate in agrochemicals and pharmaceuticals

Secondary Applications

  • Historically used in moth repellents

  • Used in explosives (military-grade formulations)

  • Component in specialty solvent blends

End Industries Served: Chemicals, Dyes & Pigments, Resins, Plastics, Agrochemicals, Pharmaceuticals, Explosives

Safety & Handling Information

Hazard Class (GHS): Flammable solid (Category 4), Carcinogenic (Category 2), Harmful if inhaled

Hazard Statements (H-Codes):

  • H228: Flammable solid

  • H302: Harmful if swallowed

  • H351: Suspected of causing cancer

  • H373: May cause damage to blood through prolonged/repeated exposure

Precautionary Statements (P-Codes):

  • P210: Keep away from heat/sparks/open flames

  • P280: Wear protective gloves/eye protection

  • P260: Do not breathe dust/fume/vapors

  • P301 + P312: IF SWALLOWED – call a POISON CENTER/doctor if you feel unwell

Storage Conditions

  • Store in a cool, dry, well-ventilated place

  • Keep container tightly sealed

  • Avoid prolonged exposure to sunlight

Transport Information

  • ADR/RID: Class 4.1, UN1334, PG III

  • IMDG: Class 4.1, UN1334

  • IATA: Class 4.1, UN1334

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