Refined Naphthalene
Product Description
Refined naphthalene is a white crystalline solid. CAS number: 91-20-3. Molecular formula: C10H8. Purity exceeds 99%. Odor: Strong, characteristic. It sublimes easily under heat.
Key Properties
Melting point: 80-82°C. Boiling point: 218°C. Density: 1.14 g/cm³ at 20°C. Insoluble in water. Soluble in ethanol and ether. Vapor pressure: Low at room temperature.
| Test items | Specifications | Results |
| Appearance | Colorless single inclined crystal with luster,white with flakes | Conforms |
| Purity | ≥99.0% | 99.33% |
| Non-volatile matter | ≤0.02% | 0.01% |
| Ash | ≤0.006% | 0.001% |
| Crystallizing Point | 79.7-79.8°C | 79.8°C |
| Melting Point | 79-83°C | 80.2°C |
| Boiling Point | 217-221°C | 218°C |
| Flash Point | 78-79°C | 78.85°C |
| Conclusion | The product conforms to standard. | |
Usage
As basic chemical raw materials, it is mainly used for the production of phthalic anhydride, various naphthol, naphthylamine, etc., and is the raw material for the production of synthetic resins, plasticizers, rubber antioxidants, surfactants, synthetic fibers, dyes, coatings, pesticides, medicines and spices.
Safety Information
Flammable solid; handle with care. May irritate skin and eyes. Store in cool, dry area. Use protective gear. Avoid open flames. Keep away from children.
Frequently Asked Questions (FAQs)
What is refined naphthalene?
High-purity polycyclic aromatic hydrocarbon. White crystals with strong odor.
What is the CAS number for it?
CAS 91-20-3.
What are the main uses?
Mothballs, dyes, resins, and drugs.
How should refined naphthalene be stored?
In airtight containers. Cool, dry, and dark place.
Is refined naphthalene toxic?
Yes, can cause irritation. Inhale minimally; seek ventilation.
What is the melting point of refined naphthalene?
Around 80°C.
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