Pigment Red 53:1

Brand	Fineland Chem
Color Index	Pigment Red 53:1
Color Index No	15585:1
CAS No	5160-02-1
EC No	225-935-3
Chemical Group	Mono Azo Lake
Chemical Formula	C₁₇H₁₂ClN₂O₄S·1/2Ba

What is Pigment Red 53:1

Pigment Red 53:1 (C.I. 15585:1) is an organic azo pigment belonging to the BONA (β-oxynaphthoic acid) pigment class. It is the calcium salt form of Pigment Red 53 and typically provides a yellowish-red shade.

The pigment is produced through an azo coupling reaction followed by conversion into a metal salt form, which reduces solubility and improves pigment stability in various industrial formulations. As a result, Pigment Red 53:1 forms an insoluble organic pigment widely used in coatings, printing inks, plastics, and related materials.

Pigment Red 53:1 is one of the traditional red pigments used in many conventional industrial coloring systems where a bright red tone and economical pigment chemistry are required.

Product Technical Data and Typical Performance Values

PR53:1 – DuraPlast® 3531-1 ⬇️TDS
This is a yellowish-red pigment with clean shade and good color strength, specially formulated for plastic.

PR53:1 – DuraPrint® S6531 ⬇️TDS
It has good viscosity control and high gloss, specially formulated for solvent-based printing inks.

Physical Properties

Test Item	Specification
Density (g/cm3 )	1.65-2.11
Specific Surface Area(m2/g)	50-75
Oil Absorption(g/100g)	40-50
PH Value	6-9
Bulk Density (lb/gal)	13.7-17.5
Total impurities(ppm)	≤600

Fastness Properties

Heat Resistance (℃)	160-180	Alkali Resistance (1-5)	3-4
Light Resistance (Full Shade, 1-8)	4-5	Migration Resistance(1-5)	3
Light (Reduced tinting, 1-8)	3-4	Ethyl Acetate (1-5)	3
Weather Resistance (1-5)	2-3	Ethanol (1-5)	3
Acid Resistance (1-5)	3-4	MEK (1-5)	3

Typical Applications

Pigment Red 53:1 is used in several industrial coloration systems.

Typical applications include:

Industrial coatings
Used in general industrial paints and decorative coating formulations.
Printing inks
Applied in packaging inks, publication inks, and other conventional printing ink systems.
Plastic coloration
Suitable for certain plastic materials such as PVC and some polyolefins processed at moderate temperatures.
Rubber products
Used in rubber coloration and related industrial compounds.

Key Performance Properties Related to Applications

The application performance of Pigment Red 53:1 is influenced by its chemical structure and calcium salt composition.

Key properties include:

Color shade
Yellowish-red tone with moderate chroma.
Tinting strength
Moderate tinting strength suitable for conventional coloration systems.
Dispersion characteristics
Can be dispersed in coatings, inks, and plastic formulations using standard dispersion techniques.
Heat resistance
Moderate thermal stability typical of BONA-type azo pigments.
Solvent resistance
Generally compatible with solvents commonly used in coatings and printing inks.

Advantages

Excellent Product Performance with Outstanding Color Performance: Pigment Red 53:1 (C.I. 15585:1; CAS 5160-02-1, also known as Lithol Rubine) is a high-performance organic pigment, featuring high tinting strength, vivid color and excellent hiding power. It has great solvent resistance and strong heat stability—withstanding 200℃ for 10 minutes in inks and 260℃ for 5 minutes in HDPE plastics. Meanwhile, it possesses good lightfastness, ensuring stable and reliable color performance.
Strict Production Control for Safe and Reliable Quality: Adopting modern manufacturing processes, we implement strict control over the entire production process to ensure product consistency and high quality. Complying with international standards and undergoing multiple quality inspections, each batch meets customer quality requirements, providing stable quality assurance for overseas procurement.
Wide Application Scenarios to Meet Diverse Needs: It is widely used in industrial fields such as inks, coatings, rubbers and plastics. Meanwhile, it can be safely used for coloring food, cosmetics and pharmaceuticals, meeting the procurement needs of overseas customers in different industries.
Convenient Storage Conditions for Easy Logistics Management: The storage requirements are simple. It only needs to be placed in a cool and dry environment, avoiding direct sunlight and moisture. Proper sealing to prevent moisture intrusion can maintain its optimal performance, reducing the management difficulty in overseas warehousing and logistics.

Typical Limitations

Pigment Red 53:1 may present certain limitations depending on the durability requirements of the application.

Typical limitations include:

Moderate lightfastness, particularly in outdoor environments
Limited heat resistance compared with high-performance pigments
Possible bleeding or migration in certain plastic formulations
Not typically selected for applications requiring long-term weather resistance

Buyer Guidance

When selecting Pigment Red 53:1 for industrial formulations, several factors are commonly evaluated:

Processing temperature of plastics or coatings
Lightfastness requirements for indoor or outdoor applications
Compatibility with binder or resin systems
Dispersion performance within the formulation

For applications requiring improved durability, weather resistance, or greater thermal stability, alternative pigment chemistries may be considered.

Synonyms

Red Lake C	Red Lake C 507	Pigment Red 53:1	C.I. 15585:1
C.I.P.R.53:1	Red 53, barium salt	Dominion DCC-2507	Daihan Red C-123
Irgalite Red LCB	Hostsin Red LC	Epsilon Red LB-026	Cosmetic Scarlet 300575
D&C Red No9 Barium Lake	Lionol Red C FG-3117	DCC 8512 Red Lake C
Barium [5-chloro-4-methyl-2-(2-hydroxynaphthylazo)benzenesulfonate]	1-(4-chloro-o-sulpho-5-tolylazo)-2-naphthol,bariumsalt	1-(4-CHLORO-O-SULFO-5-TOLYLAZO)-2-NAPHTHOL BARIUM SALT
5-chloro-2-((2-hydroxy-1-naphthyl)azo)-p-toluenesulfonicacid,bariumsalt	5-chloro-2-((2-hydroxy-1-naphthalenyl)azo)-4-methylbenzenesulphonicacid,bar	5-chloro-2-((2-hydroxy-1-naphthalenyl)azo)-4-methylbenzenesulfonicacid,bari	5-chloro-2-((2-hydroxy-1-naphthalenyl)azo)-4-methyl-benzenesulfonicacibar
5-chloro-2-[(2-hydroxy-1-naphthalenyl)azo]-4-methyl-benzenesulfonicacibar	BARIUMBIS(2-CHLORO-5-(HYDROXY-1-NAPHTHYL)AZO)TOLUENE-4-SULPHONATE	Bis[2-(2-hydroxy-1-naphtylazo)-4-methyl-5-chlorobenzenesulfonic acid] barium salt	Bis[5-chloro-2-[(2-hydroxy-1-naphthalenyl)azo]-4-methylbenzenesulfonic acid]barium salt
barium 5-chloro-4-methyl-2-[(2z)-2-(2-oxonaphthalen-1-ylidene)hydrazinyl]benzenesulfonate	Benzenesulfonic acid, 5-chloro-2-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-4-methyl-, barium salt (2:1)	Benzenesulfonic acid, 5-chloro-2-(2-hydroxy-1-naphthalenyl)azo-4-methyl-, barium salt (2:1)	DCC 8512 Red Lake C (Commercial model of Red Lake C under Dominion brand)

Manufacturer and Supplier Information

Pigment Red 53:1 is produced by pigment manufacturers worldwide and supplied mainly in powder form for industrial coloration applications including coatings, printing inks, plastics, rubber, and related materials.

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 53:1 provide?
Pigment Red 53:1 generally produces a yellowish-red shade.

2.What does the “:1” designation mean in Pigment Red 53:1?
The number after the colon indicates the metal salt form of the pigment. Pigment Red 53:1 refers to the calcium salt.

3.Can Pigment Red 53:1 be used in plastics?
Yes. It can be used in certain plastics such as PVC and some polyolefins processed at moderate temperatures.

4.Is Pigment Red 53:1 suitable for outdoor coatings?
It may be used in general coating systems, although pigments with higher weather resistance are often selected for long-term outdoor exposure.