Pigment Red 8

Brand	Fineland Chem
Color Index	Pigment Red 8
Color Index No	12335
CAS No	6410-30-6
EC No	229-100-4
Chemical Group	Mono Azo
Chemical Formula	C₂₄H₁₇ClN₄O₄

What is Pigment Red 8

Pigment Red 8 (C.I. 12085) is an organic azo pigment belonging to the β-naphthol pigment group. It produces a bluish-red shade and has historically been used as a conventional red pigment in coatings, printing inks, and certain plastic applications.

The pigment is synthesized through an azo coupling reaction between diazonium compounds and naphthol derivatives, resulting in an insoluble organic pigment with moderate tinting strength and stable coloration under typical processing conditions.

Pigment Red 8 is part of the traditional azo pigment class that has been used in industrial coloring systems where bright red tones and economical pigment chemistry are required.

Product Technical Data and Typical Performance Values

PR8 – DuraPrint®6508-1 ⬇️TDS
It has good bleed resistance and stable performance, specially developed for paint and coating applications .

Physical Properties

Test Item	Specification
Density (g/cm3 )	1.45-1.65
Specific Surface Area(m2/g)	50-60
Oil Absorption(g/100g)	40-50
PH Value	6-8
Bulk Density (lb/gal)	/
Total impurities(ppm)	≤600

Fastness Properties

Heat Resistance (℃)	160	Alkali Resistance (1-5)	4
Light Resistance (Full Shade, 1-8)	5-6	Migration Resistance(1-5)	3-4
Light (Reduced tinting, 1-8)	4-5	Ethyl Acetate (1-5)	3
Weather Resistance (1-5)	3-4	Ethanol (1-5)	4
Acid Resistance (1-5)	4	MEK (1-5)	3

Typical Applications

Pigment Red 8 is applied in several industrial coloration systems where conventional organic pigments are suitable.

Typical applications include:

Industrial coatings
Used in general industrial paints and decorative coatings.
Printing inks
Applied in packaging inks, publication inks, and other conventional ink formulations.
Plastic coloration
Used in certain general-purpose plastics processed at moderate temperatures.
Rubber products
Applied in rubber coloration and related industrial materials.

Key Performance Properties Related to Applications

The suitability of Pigment Red 8 in different applications is influenced by its pigment structure and physical properties.

Key characteristics include:

Color shade
Bluish-red tone with moderate chroma.
Tinting strength
Moderate color strength suitable for general coloration systems.
Dispersion properties
Can be dispersed in common coating, ink, and plastic formulations using standard dispersion processes.
Heat resistance
Moderate thermal stability typical of β-naphthol azo pigments.
Solvent resistance
Compatible with many solvents used in coatings and printing inks.

Advantages

Superior Product Performance：Covers 20 formulation grades, presenting a pure blue-red shade with high tinting strength and vivid color tone, and heat resistance of 140℃/30 minutes.
Clear Application Scenarios：Mainly suitable for ink coloring, also applicable to textile printing with low light fastness requirements.
Stable Supply Guarantee：Relies on its own R&D and production lines, combined with cooperation with reliable supply chain partners and efficient inventory management, to cope with market fluctuations and ensure stable supply.
High Industry Recognition：The product (Permanent Red F4R) has won multiple industry honors and wide recognition, with high customer satisfaction, and its performance and quality have been verified by the market.
Professional Support Available：Deeply rooted in the industrial application field and focused on industrial scenario requirements; can provide detailed product safety data and professional application recommendations based on customer needs.

Typical Limitations

Pigment Red 8 may present limitations depending on the durability requirements of the final application.

Typical limitations include:

Moderate lightfastness under outdoor exposure
Limited heat resistance compared with high-performance pigments
Possible bleeding or migration in some plastic systems
Not typically selected for applications requiring long-term weather durability

Buyer Guidance

When selecting Pigment Red 8 for industrial formulations, several technical factors are often considered:

Processing temperature of plastics or coatings
Lightfastness requirements for indoor or outdoor use
Compatibility with binder or resin systems
Dispersion requirements in the final formulation

For applications requiring higher durability or weather resistance, alternative pigment classes may also be evaluated.

Synonyms

O860	410P306	W-110138	C.I.12335
6410-30-6	Pigment Red 8	SCHEMBL6840910	DTXSID5064332
MFCD01940655	AKOS025310988	ZINC100045248	SCHEMBL21436677
C.I. PIGMENT RED 8	Naphthol Red F4R	Organic Pigment Red 8	Pigment red 8, tech
Pigment Permanent Red F4R	EINECS 229-100-4	SCHEMBL6840910
2-Naphthalenecarboxamide, N-(4-chlorophenyl)-3-hydroxy-4-[(2-methyl-5-nitrophenyl)azo]-	2-Naphthalenecarboxamide, N-(4-chlorophenyl)-3-hydroxy-4-((2-methyl-5-nitrophenyl)azo)-	2-Naphthalenecarboxamide, N-(4-chlorophenyl)-3-hydroxy-4-(2-(2-methyl-5-nitrophenyl)diazenyl)-	N-(4-chlorophenyl)-3-hydroxy-4-[(2-methyl-5-nitrophenyl)diazenyl]naphthalene-2-carboxamide
N-(4-Chlorophenyl)-3-hydroxy-4-((2-methyl-5-nitrophenyl)azo)naphthalene-2-carboxamide	N-(4-CHLOROPHENYL)-3-HYDROXY-4-[(2-METHYL-5-NITROPHENYL)AZO]-2-NAPHTHALENECARBOXAMIDE

Manufacturer and Supplier Information

Pigment Red 8 is produced by pigment manufacturers globally and supplied mainly in powder form for use in coatings, inks, plastics, rubber, and related industries.

Commercial grades may vary in particle size distribution, surface treatment, and dispersion behavior depending on the intended application.

Package and Delivery

● 25KG Kraft Bag, 400kg/500kg Carton Box
● Lead Time: Normally around 15 days after signed contract

FAQ

1.What color shade does Pigment Red 8 provide?
Pigment Red 8 generally produces a bluish-red shade.

2.Is Pigment Red 8 an organic pigment?
Yes. It belongs to the organic azo pigment family, specifically the β-naphthol pigment group.

3.Can Pigment Red 8 be used in printing inks?
Yes. It has been used in various conventional printing ink formulations.

4.Is Pigment Red 8 suitable for high-temperature plastics?
It is typically used in plastics with moderate processing temperatures; higher-temperature polymers may require pigments with greater heat stability.