Refined Naphthalene Supplier for Industrial Applications

Refined Naphthalene is a high-purity aromatic hydrocarbon widely used in chemical manufacturing, dyes, resins, plasticizers, construction additives, and industrial intermediates. Manufacturers choose refined grades when they require consistent purity, controlled melting behavior, low impurities, and reliable performance in downstream production. Depending on the application, buyers may require high-purity refined naphthalene, technical grades, or lower-purity material for general industrial processing. Basekim supplies Refined Naphthalene for international manufacturers, distributors, and industrial buyers looking for dependable bulk supply, suitable packaging, and export support.

What Is Refined Naphthalene?

Refined Naphthalene is a purified form of naphthalene, an aromatic hydrocarbon with the chemical formula C10H8. It normally appears as white crystalline flakes, powder, or solid material with a characteristic aromatic odor.

Naphthalene naturally occurs in coal tar and certain petroleum-derived streams. Producers recover and purify the material through distillation, crystallization, and other refining processes to reduce unwanted compounds and increase product purity.

As a result, refined material offers more consistent chemical properties than crude grades. This makes it suitable for applications where purity and predictable processing behavior are important.

Typical commercial grades may include:

  • Refined Naphthalene 99%+

  • High-purity Naphthalene 99.5%

  • Technical Naphthalene around 97%

  • Lower-purity industrial grades

  • Flake and crystalline forms

Refined Naphthalene Properties

Refined Naphthalene offers several physical and chemical characteristics that make it useful in industrial manufacturing.

PropertyTypical Value
Chemical NameNaphthalene
Chemical FormulaC10H8
CAS Number91-20-3
AppearanceWhite crystalline flakes or solid
Molecular Weight128.17 g/mol
Melting PointApprox. 80°C
Boiling PointApprox. 218°C
DensityApprox. 1.14 g/cm³
Solubility in WaterVery low
OdorCharacteristic aromatic odor
PurityCommonly 97%–99.5%+

Exact specifications can vary depending on production source, refining process, and requested grade.

Refined Naphthalene Manufacturing Process

The production of Refined Naphthalene usually begins with a naphthalene-rich feedstock obtained from coal tar or petroleum-based processing streams.

First, producers separate the naphthalene fraction through controlled distillation. This step removes compounds with significantly different boiling points.

Next, the concentrated naphthalene undergoes crystallization. Because naphthalene has a defined melting point, controlled cooling allows manufacturers to separate high-purity crystals from remaining impurities.

Further refining may include:

  • Fractional distillation

  • Crystallization

  • Washing

  • Centrifugation

  • Sublimation

  • Re-melting and filtration

Finally, the purified product is cooled and formed into flakes, crystals, or another suitable physical form for packaging and transportation.

Refined Naphthalene 99.5%

Refined Naphthalene 99.5% is a high-purity grade designed for applications where tight specifications and low impurity levels are important.

This grade commonly serves as a feedstock for chemical intermediates and specialty manufacturing processes.

Typical advantages include:

  • High chemical purity

  • Consistent melting behavior

  • Lower contamination levels

  • Predictable downstream processing

  • Reliable batch-to-batch quality

High-purity refined naphthalene is especially useful when manufacturers need greater control over final product properties.

Technical Grade Naphthalene

Technical grade naphthalene typically contains a lower purity than fully refined material but still provides sufficient performance for many industrial applications.

A technical grade may contain approximately 95% to 97% naphthalene, depending on the producer and specification.

It may be suitable for:

  • General chemical processing

  • Industrial intermediates

  • Dye manufacturing

  • Construction chemical production

  • Resin production

  • Selected agricultural chemical processes

Technical grades can also provide a more economical option where ultra-high purity is unnecessary.

Main Applications of Refined Naphthalene

Refined Naphthalene plays an important role in several manufacturing sectors.

1. Phthalic Anhydride Production

One of the most important industrial applications is the production of phthalic anhydride.

Manufacturers oxidize naphthalene under controlled conditions to produce phthalic anhydride, which is then used in:

  • Plasticizers

  • Alkyd resins

  • Polyester resins

  • Pigments

  • Coatings

  • Industrial chemicals

Because purity affects conversion and product quality, refined grades are often preferred.

2. Construction Chemical Production

Refined Naphthalene is widely associated with the production of naphthalene sulfonate-based compounds.

These compounds can be used in the manufacture of concrete admixtures and water-reducing agents.

Naphthalene-based superplasticizers help concrete manufacturers improve workability while controlling the amount of water in the mixture.

Therefore, naphthalene derivatives remain important in certain construction chemical formulations.

3. Dye and Pigment Industry

The dye industry uses naphthalene as an intermediate for producing various aromatic compounds.

Manufacturers convert it into derivatives that later become components in:

  • Textile dyes

  • Pigments

  • Printing chemicals

  • Color intermediates

  • Specialty organic chemicals

Consistent raw material purity can help maintain stable reaction performance.

4. Resin Manufacturing

Refined Naphthalene can also serve as a raw material in the production of specialty resins.

Naphthalene-based resins may offer useful characteristics such as:

  • Thermal resistance

  • Chemical resistance

  • Adhesion

  • Mechanical strength

  • Improved processing behavior

These materials can appear in coatings, adhesives, rubber processing, and other technical applications.

5. Plasticizer Production

Naphthalene-derived intermediates may enter plasticizer manufacturing chains.

Plasticizers help improve the flexibility, processability, and mechanical properties of various polymer systems.

For this reason, Refined Naphthalene can indirectly support plastics and polymer production through downstream chemical conversion.

6. Agricultural Chemicals

Certain naphthalene derivatives are used in agricultural chemical production.

For example, naphthalene-based compounds may act as intermediates for specific pesticide, growth regulator, or specialty chemical formulations.

The final use always depends on the derivative and regulatory requirements of the destination market.

7. Rubber and Tire Industry

Naphthalene derivatives may also be used in rubber processing chemicals.

These compounds can support the production of:

  • Rubber additives

  • Processing aids

  • Resins

  • Chemical intermediates

  • Specialty industrial formulations

Refined Naphthalene vs Crude Naphthalene

Refined and crude naphthalene differ mainly in purity and impurity levels.

FeatureRefined NaphthaleneCrude Naphthalene
PurityHighLower
AppearanceUsually whiteMay appear darker
ImpuritiesLowerHigher
Processing ConsistencyHighMore variable
Chemical ApplicationsSuitable for demanding usesMainly general industrial uses
CostUsually higherUsually lower

Refined material is generally preferred when final product quality depends strongly on raw material purity.

Refined Naphthalene Specifications

A typical high-purity product may meet specifications similar to the following:

ParameterTypical Specification
Naphthalene Content99.0%–99.5% Min
AppearanceWhite flakes or crystals
Melting PointApprox. 79–81°C
MoistureLow
AshLow
ColorWhite to off-white
Insoluble MatterControlled
Crystallization PointGrade dependent

Actual specifications should always be confirmed through the supplier’s latest TDS and COA before purchasing.

Packaging

Refined Naphthalene requires packaging that helps protect the material from contamination, moisture, and excessive heat.

Common packaging options may include:

  • 25 kg bags

  • 25 kg multi-layer bags

  • 500–1000 kg jumbo bags

  • Customized export packaging

Packaging selection depends on order volume, destination country, transport method, and customer requirements.

Storage Conditions

Store Refined Naphthalene in a cool, dry, and well-ventilated place.

Keep the material away from:

  • Heat

  • Open flames

  • Sparks

  • Oxidizing materials

  • Direct sunlight

Containers or bags should remain properly sealed when not in use.

Because naphthalene is combustible and releases vapors, storage areas should follow appropriate industrial safety requirements.

Handling and Safety

Workers should follow the product’s current Safety Data Sheet before handling Refined Naphthalene.

Recommended precautions may include:

  • Use suitable protective gloves.

  • Avoid breathing dust or vapor.

  • Provide effective ventilation.

  • Avoid direct skin and eye contact.

  • Keep away from ignition sources.

  • Wash thoroughly after handling.

Industrial users should also comply with local workplace and transportation regulations.

Refined Naphthalene Price

The Refined Naphthalene price can change according to several market factors.

Important pricing variables include:

  • Purity level

  • Feedstock cost

  • Coal tar and petroleum market conditions

  • Production capacity

  • Packaging type

  • Order quantity

  • Shipping destination

  • Freight rates

  • Seasonal industrial demand

High-purity 99.5% material usually costs more than technical or crude grades because it requires additional refining.

For accurate commercial quotations, buyers should provide the required grade, quantity, packaging, destination port, and delivery terms.

How to Choose a Refined Naphthalene Supplier

Industrial buyers should evaluate more than just the quoted price.

A reliable Refined Naphthalene supplier should provide:

  • Clear product specifications

  • Certificate of Analysis

  • MSDS or SDS

  • Technical Data Sheet

  • Consistent purity

  • Reliable packaging

  • Export documentation

  • Suitable delivery terms

Buyers should also confirm whether the supplied grade matches their specific manufacturing process before placing large orders.

Refined Naphthalene Supplier and Export Supply

Basekim supplies Refined Naphthalene for industrial customers, chemical distributors, and manufacturers in international markets.

Available grades can be selected according to required purity and final application. Bulk buyers can also request suitable export packaging, specification documents, and commercial quotations based on destination and quantity.

When requesting an offer, customers should provide:

  • Required purity

  • Estimated quantity

  • Packaging preference

  • Destination country or port

  • Required Incoterm

  • Application, when relevant

This information helps prepare a more accurate quotation and suitable product recommendation.

Refined Naphthalene TDS

Typical Technical Data Sheet

PropertyTypical Result
ProductRefined Naphthalene
FormulaC10H8
CAS No.91-20-3
AppearanceWhite crystalline flakes
Purity99%–99.5% Min
Molecular Weight128.17 g/mol
Melting PointApprox. 80°C
Boiling PointApprox. 218°C
DensityApprox. 1.14 g/cm³
MoistureLow
Solubility in WaterSlight

Values are typical and may vary between grades and production batches.

Refined Naphthalene MSDS Summary

Identification

Product Name: Refined Naphthalene
Chemical Formula: C10H8
CAS Number: 91-20-3

Main Hazards

  • Combustible solid

  • Harmful if swallowed

  • May cause skin or eye irritation

  • Dust and vapor should not be inhaled

  • Harmful exposure should be avoided

First Aid

Eyes: Rinse carefully with clean water for several minutes.

Skin: Wash affected area thoroughly with soap and water.

Inhalation: Move the affected person to fresh air.

Ingestion: Seek medical advice and follow professional instructions.

Firefighting

Use appropriate extinguishing media such as:

  • Dry chemical

  • Foam

  • Carbon dioxide

Firefighters should use suitable protective equipment.

Storage

Store in sealed packaging in a dry, ventilated area away from heat, flames, sparks, and incompatible chemicals.

The full supplier SDS should always be reviewed before industrial handling.

Frequently Asked Questions

What is Refined Naphthalene used for?

Refined Naphthalene is mainly used as a chemical intermediate in phthalic anhydride, dyes, resins, plasticizers, construction chemicals, and specialty industrial products.

What purity is available for Refined Naphthalene?

Common commercial grades include approximately 97%, 99%, and 99.5% purity, depending on production method and application requirements.

What is the difference between refined and crude naphthalene?

Refined Naphthalene contains fewer impurities and offers more consistent chemical and physical properties. Crude naphthalene generally contains more secondary aromatic compounds and is suitable for less demanding industrial applications.

Is Refined Naphthalene soluble in water?

Naphthalene has very low water solubility. However, it dissolves more readily in many organic solvents.

How is Refined Naphthalene packaged?

Common packaging options include 25 kg bags and larger bulk or jumbo bags, depending on supplier, order volume, and export requirements.

Table of Contents

Technical Specifications

PropertyTypical Value
Naphthalene Content (%)99.0–99.5 Min
Crystallization Point (°C)79.5–80.2
Melting Point (°C)Approx. 80
Moisture (%)0.10 Max
Ash Content (%)0.05 Max
Non-Volatile Matter (%)0.10 Max
ColorWhite to Off-White
AppearanceCrystalline Flakes / Solid
Molecular Weight128.17 g/mol
Density @ 20°CApprox. 1.14 g/cm³
Boiling Point (°C)Approx. 218
Solubility in WaterVery Low
CAS Number91-20-3

References and certificates

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