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Naphthalene Powder Extra Pure
Original price was: $ 18.00.$ 17.78Current price is: $ 17.78.
Naphthalene Powder Extra Pure is a fine, white to pale crystalline powder composed of high-purity naphthalene (C₁₀H₈), valued for its consistent quality and volatile aromatic properties. This form is particularly suitable for laboratory use, where controlled dosing and faster sublimation are required. The powder is widely utilized in organic synthesis, standardization experiments, and melting point calibration, owing to its stable molecular structure and high sublimation rate.
In industrial and technical contexts, naphthalene powder serves as a precursor in dye manufacturing, plasticizer production, and pesticide formulation. It is also used as a fumigant for controlling pests in storage environments, similar to its use in ball form, but with faster release due to the increased surface area. Despite its utility, the powder must be handled with care—used in well-ventilated areas, kept away from ignition sources, and stored in sealed containers—due to its flammability and potential health effects from prolonged inhalation.
Naphthalene Powder Extra Pure
Primary Uses
- Reactant in Organic Chemical Synthesis
- Used as a starting material or precursor for the industrial and laboratory-scale synthesis of compounds like phthalic anhydride (via catalytic oxidation), sulfonated naphthalene (used in concrete plasticizers), and azo dyes. The powder form provides a high surface area, leading to faster and more efficient reaction rates.
- Raw Material for Formulating Pesticides
- Serves as the active ingredient in the manufacturing of moth repellents, soil fumigants, and other pesticide products. The fine powder is easily mixed with other carriers, binders, and co-fumigants to create pellets, cakes, or dust formulations.
- Fuel and Combustion Additive
- Incorporated into solid fuel propellants and pyrotechnic compositions to increase the fuel content and control burning characteristics. The powder’s high surface area allows for rapid, controlled combustion. It is also studied in fuel additives for soot suppression.
- Intermediate in Dye and Pigment Production
- Acts as a fundamental building block in the chemical industry for producing a wide range of synthetic dyes, particularly azo dyes, and organic pigments. Its powdered state is optimal for handling in large-scale chemical processes like diazotization and coupling reactions.
Secondary Uses
- Teaching Tool for Purification Techniques
- An excellent substance for teaching laboratory techniques such as re-crystallization (using solvents like ethanol) and sublimation due to its “extra pure” grade and well-defined crystal structure upon cooling, allowing students to practice and observe purification methods.
- Solvent for Specific Industrial Applications
- Used as a low-cost, volatile solvent for some organic compounds in specific industrial applications, such as the formulation of certain oils, resins, or in the production of carbonaceous materials.
- Study of Sublimation Kinetics and Crystal Growth
- The powder form is ideal for quantitative experiments studying the kinetics of sublimation (mass loss over time) under different temperatures and pressures. It is also used to seed and study the growth of large, pure naphthalene crystals.
- Component in Composite Materials and Plastics
- Investigated and used as a filler or organic modifier in some polymer composites and as a raw material in the synthesis of certain high-performance plastics and resins, such as polyvinyl chloride (PVC) stabilizers and epoxy hardeners.
| PACK SIZE | 500 grams Plastic Tin |
|---|
1. Basic Identification Attributes
- Chemical Name: Naphthalene
- CAS Number: 91-20-3
- HS Code: 2902.90.00
- Molecular Formula: C₁₀H₈
- Synonyms: α-Naphthalene, White Tar, Naphthalin, Tar Camphor, Naphthene
2. Physical & Chemical Properties
- Physical State: Solid (fine powder)
- Color & Odor: White to pale brown powder with strong aromatic odor
- Boiling Point: 218 °C
- Melting Point: 80.2 °C
- Density: ~1.14 g/cm³
- Solubility: Insoluble in water; soluble in alcohol, ether, chloroform, benzene
- pH Level: Not applicable (neutral organic compound)
- Vapor Pressure: 0.087 mmHg at 25 °C
- Flash Point: 79 °C (closed cup)
- Autoignition Temperature: 527 °C
- Viscosity: Not applicable (solid)
3. Safety & Hazard Attributes
- Hazard Class (GHS):
- Flammable Solid (Category 2)
- Acute Toxicity, Oral (Category 4)
- Carcinogenicity (Category 2)
- Chronic Aquatic Toxicity (Category 1)
- NFPA Ratings:
- Health: 2
- Flammability: 2
- Reactivity: 0
- Exposure Limits:
- OSHA PEL: 10 ppm (50 mg/m³)
- ACGIH TLV: 10 ppm (skin)
- Reactivity: Stable under normal conditions; avoid oxidizing agents and ignition sources
4. Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry, well-ventilated area away from open flames and heat
- Incompatible Materials: Oxidizers such as nitric acid, chromates, and chlorine
- Container Type: Use tightly sealed, chemically resistant containers
- Shelf Life & Expiration Date: Stable for several years if stored properly
- Special Handling Requirements: Use in a fume hood; wear gloves, goggles, and dust mask to avoid inhalation and skin contact
5. Regulatory & Compliance Attributes
- Regulatory Status:
- EPA: Listed as hazardous air pollutant
- REACH: Registered substance
- OSHA: Listed hazardous chemical
- DOT: Regulated for transport
- Hazard Symbols:
- Flame, Exclamation Mark, Health Hazard, Environment
- Transportation Restrictions:
- UN Number: UN1334
- Hazard Class: 4.1 (Flammable Solid)
- Waste Disposal Method: Dispose of according to local, regional, and national regulations under hazardous waste category (RCRA)
6. Environmental & Health Impact
- Ecotoxicity: Highly toxic to aquatic organisms with long-lasting effects
- Persistence in Environment: Volatile and semi-persistent; may accumulate in soil and sediments
- Carcinogenicity/Mutagenicity:
- IARC: Group 2B (Possibly carcinogenic to humans)
- OSHA: Potential occupational carcinogen
Biodegradability: Moderate under aerobic conditions; slow in anaerobic environments
SAFETY PRECAUTIONS
Personal Protective Equipment (PPE):
- Wear a lab coat, chemical-resistant gloves (e.g., nitrile), and protective goggles.
- Use a suitable dust mask or operate within a fume hood to prevent inhalation of fine particles.
Handling:
- Avoid generation of dust and avoid breathing it in.
- Prevent contact with skin, eyes, and clothing.
- Wash hands and face thoroughly after handling.
- Do not eat, drink, or smoke when using this product.
Storage:
- Store in a cool, dry, and well-ventilated area.
- Keep the container tightly sealed and away from heat or ignition sources.
- Store separately from oxidizing agents and acids.
FIRST AID MEASURES
Inhalation:
- Remove to fresh air immediately.
- If breathing is difficult, administer oxygen and seek medical attention.
Skin Contact:
- Wash with soap and plenty of water.
- Remove contaminated clothing.
- Get medical attention if irritation develops.
Eye Contact:
- Rinse cautiously with clean water for several minutes.
- Remove contact lenses if present and easy to do.
- Continue rinsing and seek medical help if irritation persists.
Ingestion:
- Rinse your mouth thoroughly with water.
- Do not induce vomiting.
- Seek immediate medical advice—naphthalene is harmful if swallowed.
FIRE FIGHTING MEASURES
Flammability:
- Flammable in powder form; fine dust can form explosive mixtures with air.
Extinguishing Media:
- Use dry chemicals, foam, or CO₂.
- Water spray may be used to cool containers but could spread dust.
Hazardous Combustion Products:
- Emits carbon monoxide, carbon dioxide, and irritating fumes upon combustion.
Firefighter Protection:
- Wear self-contained breathing apparatus (SCBA) and full fire-resistant gear.
- Avoid inhaling combustion vapors or dust.
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