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.
| Property | Typical Value |
|---|---|
| Chemical Name | Naphthalene |
| Chemical Formula | C10H8 |
| CAS Number | 91-20-3 |
| Appearance | White crystalline flakes or solid |
| Molecular Weight | 128.17 g/mol |
| Melting Point | Approx. 80°C |
| Boiling Point | Approx. 218°C |
| Density | Approx. 1.14 g/cm³ |
| Solubility in Water | Very low |
| Odor | Characteristic aromatic odor |
| Purity | Commonly 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
Chemical intermediates
Specialty industrial formulations
Refined Naphthalene vs Crude Naphthalene
Refined and crude naphthalene differ mainly in purity and impurity levels.
| Feature | Refined Naphthalene | Crude Naphthalene |
|---|---|---|
| Purity | High | Lower |
| Appearance | Usually white | May appear darker |
| Impurities | Lower | Higher |
| Processing Consistency | High | More variable |
| Chemical Applications | Suitable for demanding uses | Mainly general industrial uses |
| Cost | Usually higher | Usually 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:
| Parameter | Typical Specification |
|---|---|
| Naphthalene Content | 99.0%–99.5% Min |
| Appearance | White flakes or crystals |
| Melting Point | Approx. 79–81°C |
| Moisture | Low |
| Ash | Low |
| Color | White to off-white |
| Insoluble Matter | Controlled |
| Crystallization Point | Grade 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
| Property | Typical Result |
|---|---|
| Product | Refined Naphthalene |
| Formula | C10H8 |
| CAS No. | 91-20-3 |
| Appearance | White crystalline flakes |
| Purity | 99%–99.5% Min |
| Molecular Weight | 128.17 g/mol |
| Melting Point | Approx. 80°C |
| Boiling Point | Approx. 218°C |
| Density | Approx. 1.14 g/cm³ |
| Moisture | Low |
| Solubility in Water | Slight |
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
| Property | Typical 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 |
| Color | White to Off-White |
| Appearance | Crystalline Flakes / Solid |
| Molecular Weight | 128.17 g/mol |
| Density @ 20°C | Approx. 1.14 g/cm³ |
| Boiling Point (°C) | Approx. 218 |
| Solubility in Water | Very Low |
| CAS Number | 91-20-3 |

