Production
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Solvent Black 29
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Pigment red 48-3
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Solvent Yellow 98
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Sodium Lauryl Ether Sulfate 70% (SLES AES)
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Pigment yellow 14
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Pigment yellow 13
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Pigment yellow 17
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Solvent Orange 105
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Acid Red 52
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Acid Red 18
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Sodium Lauryl Sulfate
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Acid Orange 7
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Solvent Blue 122
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Solvent Green 5
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Phthalocyanine blue 15-4
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Solvent Red 24
Acid Red 172
Product Name: Acid Red 172 / Weak Acid Brilliant Red 3B
Color Index: Acid Red 172 (C.I. 172)
CAS: 6826-53-5
Molecular Formula: C₃₀H₂₂ClN₃Na₂O₁₀S₃
Formula Weight: 762.13 g/mol
Synonyms: Weak Acid Brilliant Red 3B; C.I. Acid Red 172; Monoazo Acid Dye; Brilliant Red 3B; Weak Acid Red 172
Application:
Textiles (Nylon, Wool, Silk), Paints & Coatings, Printing Inks, Leather Finishing, Plastics
Description
marker
1.Product Description
Elevate Your Color Performance with Acid Red 172 – The Premium Weak Acid Red for Demanding Applications.
Acid Red 172, widely recognized as Weak Acid Brilliant Red 3B, represents the pinnacle of monoazo acid dye chemistry, engineered specifically for applications requiring superior wet fastness and brilliant clarity. Unlike conventional levelling acid dyes, this advanced formulation features a larger molecular structure with strategic sulfonyl and chloro-substituted aromatic groups, enabling stronger ionic and hydrophobic bonding with polyamide and protein fibers .
What distinguishes Acid Red 172 is its exceptional all-round fastness profile. It delivers a clean, bright red shade with remarkable resistance to seawater, perspiration, and light—properties typically associated with metal-complex dyes, but achieved here without heavy metals . This makes it the preferred choice for high-performance textiles, including swimwear, activewear, and automotive upholstery.
Beyond textiles, our Acid Red 172 serves as a reliable colorant in the paints and coatings industry, where its monoazo structure provides excellent dispersion and stability in solvent-based and water-based systems . The result is a vibrant, durable red that withstands the rigors of both industrial processing and end-use environments.
2.Product Specifications (Technical Data Sheet)
| Property | Specification | Insight |
| Product Name | Acid Red 172 (Weak Acid Brilliant Red 3B) | Premium grade for high-fastness applications. |
| Appearance | Bright Red to Dark Red Uniform Powder | Free-flowing, micronized to minimize dust. |
| CAS No. | 6826-53-5 | Verified chemical registry number . |
| EINECS/EC No. | Information not available in search results | Please consult our technical department for regulatory updates. |
| Solubility | Soluble in water | Forms clear, brilliant red solutions. |
| Style | Anionic / Weak Acid Dye | Suitable for application in weakly acidic to neutral baths (pH 4.5-7.0). |
| Tinting Strength | 100% ± 3% (vs. Standard) | High tinctorial value ensures cost-effective coloration. |
| Purity (Dye Content) | ≥ 95% | High purity formulation with minimal by-products for consistent performance. |
| Packing | 25 kg HDPE bags / 500 kg jumbo bags / Custom sizes available | Secure, moisture-proof packaging to maintain product integrity. |
| Melting Point | > 300°C (Decomposes) | Excellent thermal stability for high-temperature processing. |
| Application | Nylon 6, Nylon 66, Wool, Silk, Paints, Coatings, Inks | Versatile across multiple industries |
3.Product Application (Industry Usage Guide)
Textile Industry (Nylon & Wool):
Acid Red 172 is specifically designed for exhaust dyeing of polyamide (nylon 6 and nylon 66) and protein fibers (wool, silk). Apply at a pH of 4.5-6.0 using acetic acid or ammonium acetate for optimal exhaustion. Its weak acid nature allows for excellent migration and leveling, while its molecular size ensures outstanding wet fastness. It is ideal for:
Swimwear & Activewear: Excellent seawater and perspiration fastness .
Carpets & Upholstery: Superior lightfastness for long-lasting color.
Automotive Textiles: Where resistance to light and heat is critical.
Paints & Coatings Industry:
As a monoazo-based acid dye, Acid Red 172 is recommended for use in paints and coatings formulations . It provides:
Bright Red Shades: Clean, vibrant coloration for decorative and industrial coatings.
Good Lightfastness: Suitable for applications requiring prolonged exposure to light.
Compatibility: Can be incorporated into both solvent-based and water-based systems.
Leather & Inks:
In leather finishing, Acid Red 172 offers deep penetration and brilliant color on finished leathers. In printing inks, it provides intense, transparent red shades suitable for high-quality print applications.
4. Features (Why Choose Our Acid Red 172?)
Superior Fastness Properties: Engineered to deliver exceptional resistance to seawater, perspiration, and light, outperforming standard acid reds and rivaling metal-complex dyes without the environmental concerns .
Bright, Clean Shade: The advanced monoazo chemistry produces a brilliant, clear red with excellent brilliance, ideal for high-visibility applications.
Heavy Metal-Free Formulation: Provides a more sustainable and eco-friendly alternative to metal-complex red dyes, meeting modern environmental and safety standards.
Excellent Leveling & Migration: Despite its high wet fastness, the dye maintains good migration properties, ensuring uniform, streak-free results on challenging substrates like nylon.
Versatile Application Range: Effective across textiles, paints, coatings, leather, and inks, making it a versatile addition to your colorant inventory .
Consistent Batch-to-Batch Quality: Manufactured under strict quality control to ensure reliable, reproducible results every time.
5.Packaging
Usually is 25Kg/drum or paper box or bag with inner double PE liner Or provide customized packaging according to customer requirements.
6.Our advantage:
1) Provide free samples for testing or comparing the effect difference and cost performance.
2) Fast response speed, customers' questions at any time will be responded to in two hours.
3) Fast delivery: the fastest delivery can be made on the same day.
4)Different packaging solutions: provide various packaging options according to customer requirements.
5)Technical guidance: provide improved whitening and coloring formulas and guidance according to customer production materials.
6) Sample retention or sample mailing before bulk delivery.
7) Providing certificationes, such as Reach certification.
8) Different payment methods: TT LC, etc.
9) Providing door-to-door DDP service.
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