Production
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Pigment violet 23
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Acid Yellow 23 Detergent dye
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Acid Red 172
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Optical Brightener 4BK
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Pigment red 48-2
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Solvent Blue 45
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Anatase Titanium Dioxide
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Solvent Orange 60
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Optical Brightener OB
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Solvent violet 31
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Solvent Red 52
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Sodium Lauryl Ether Sulfate 70% (SLES AES)
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Phthalocyanine blue 15-4
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Acid Blue 9
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Sodium Lauryl Sulfate
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Pigment red 170 F3RK
Solvent Orange 105
Product Name: Solvent Orange 105 / Transparent Orange FR
Chemical Name:
4-[N-(2-Cyanoethyl)-N-ethylamino]-4′-nitroazobenzene / 3-[Ethyl[4-[(4-nitrophenyl)azo]phenyl]amino]propanenitrile
Color Index: C.I. 11227
CAS: 31482-56-1
Molecular Formula: C₁₇H₁₇N₅O₂
Formula Weight: 323.35 – 323.35 g/mol
Synonyms: C.I. Solvent Orange 105; Disperse Orange 25; Transparent Orange FR; Transparent Orange 2R; 4-[N-(2-Cyanoethyl)-N-ethylamino]-4′-nitroazobenzene; Elbaplast Orange R; Waxoline Orange Rp Fw; Begacron Orange H-3R
Application:
Engineering Plastics (PS, ABS, PC, PMMA, PET, SAN, RPVC), Polyester Fibers, Printing Inks, Paints & Coatings, Fuels & Gasoline, Oils & Lubricants, Waxes & Candles, Rubber, Leather Finishes, Masterbatch
Description
marker
1.Product Description
Achieve Brilliant, Heat-Stable Orange Coloration with Solvent Orange 105 – The Premium Monoazo Dye for Plastics, Fibers, and High-Performance Applications.
Solvent Orange 105, designated as C.I. 11227 and widely known as Transparent Orange FR or Disperse Orange 25, is a high-performance monoazo-based solvent dye renowned for its brilliant reddish-orange shade, excellent heat resistance, and outstanding solubility in organic systems . This sophisticated dye features a unique azo molecular structure with a cyanoethyl-ethylamino group that delivers superior thermal stability and excellent compatibility with a wide range of polymers and solvents .
What distinguishes Solvent Orange 105 from conventional solvent dyes is its exceptional combination of heat resistance, lightfastness, and versatility. With heat resistance up to 300°C in polycarbonate and 280°C in PET/PMMA/PS/ABS, this dye maintains its vibrant color through demanding injection molding, extrusion, and fiber spinning operations . Its lightfastness rating of 6-7 (on an 8-point scale) ensures durable coloration in outdoor and UV-exposed applications .
Key differentiators:
Monoazo Chemistry: Provides excellent color strength and good thermal stability with a brilliant reddish-orange shade .
Exceptional Heat Resistance: Withstands processing temperatures up to 300°C in PC, 280°C in PET/PMMA/PS/ABS, and 260°C in SAN/R-PVC .
Brilliant Reddish-Orange Shade: Delivers a clean, transparent reddish-orange hue with excellent color strength.
Good Lightfastness: Rated 6-7, ensuring long-lasting color in interior and moderate outdoor applications .
Broad Polymer Compatibility: Suitable for PS, ABS, PC, PMMA, PET, SAN, RPVC, PA66, PBT, and polyester fibers .
Excellent Solubility: Soluble in acetone, butyl acetate, and organic solvents; insoluble in water .
2.Product Specifications (Technical Data Sheet)
| Property | Specification | Insight |
| Product Name | Solvent Orange 105 (C.I. 11227) | Premium monoazo dye for plastics and fibers |
| Appearance | Orange to dark red-orange uniform powder | Free-flowing, fine powder |
| CAS No. | 31482-56-1 | Verified chemical registry number |
| EINECS/EC No. | 250-654-8 | Listed in European inventory |
| Molecular Formula | C₁₇H₁₇N₅O₂ | Monoazo structure with cyanoethyl group |
| Formula Weight | 323.35 - 323.35 g/mol | Precise molecular mass |
| Solubility (Water) | Insoluble at 20°C | Hydrophobic, suitable for non-polar systems |
| Solubility (Acetone) | Soluble | Good solubility in ketones |
| Solubility (Butyl Acetate) | Soluble | Suitable for ester-based systems |
| Solubility (Ethanol) | Slightly soluble (yellow) | Limited alcohol solubility |
| Solubility (Toluene) | <10 g/L | Limited aromatic solubility |
| Ionic Style | Non-ionic / Solvent Dye | Compatible with various polymer systems |
| Color Shade | Reddish-orange | Transparent, brilliant orange with red undertone |
| Tinting Strength | 100 ± 3% (vs. standard) | High color strength with consistent performance |
| Purity | ≥ 99% (industrial grade) | High purity ensures consistent performance |
| Ash Content | ≤ 1.0% | High purity with minimal inorganic residues |
| Moisture Content | ≤ 0.5% | Low moisture ensures stability |
| Melting Point | 155-175°C (155-160°C typical) | Good thermal stability for processing |
| Sublimation Temperature | 315°C | Low volatility during processing |
| Bulk Density | 0.4 kg/L | Good handling characteristics |
| Boiling Point | 555°C at 760 mmHg | High thermal stability |
| Density | 1.19 - 1.19 g/cm³ | |
| Lightfastness (1/3 ISD) | Grade 6-7 (PS/PC/PMMA/PET) | Good UV resistance for interior applications |
| Weather Fastness (3000 hrs) | Grade 3-4 (PS/PMMA) | Moderate outdoor durability |
| Migration Fastness | Grade 4-5 (PC/PMMA/PS) | Good resistance to bleeding |
| Heat Resistance (PC) | 300°C (0.085% + 1% TiO₂) | Exceptional thermal stability |
| Heat Resistance (PET/PMMA/PS/ABS) | 280°C | Excellent for most engineering plastics |
| Heat Resistance (SAN/R-PVC) | 260°C | Suitable for styrenic and rigid PVC |
| Acid Resistance (5% HCl) | Grade 5 | Excellent chemical stability |
| Alkali Resistance (5% NaOH) | Grade 5 | Outstanding alkaline stability |
| Storage Conditions | Store in cool, dry, ventilated warehouse; keep containers tightly sealed | Shelf life: 3-5 years under proper storage |
| Packing | 25 kg fiber drums / cardboard cartons with PE inner liner; custom sizes available | Secure, moisture-proof packaging |
| Application | PS, ABS, PC, PMMA, PET, SAN, RPVC, PA66, PBT, polyester fibers, inks, coatings, fuels, waxes, rubber, leather | Versatile across multiple industries |
3.Product Application
Engineering Plastics & Thermoplastics – Primary Application:
Solvent Orange 105 is the preferred colorant for high-performance engineering plastics, delivering excellent heat stability and brilliant transparent coloration across a wide range of polymers :
| Polymer Substrate | 1/3 ISD Dosage (with TiO₂) | Heat Resistance | Lightfastness | Migration Fastness |
| Polycarbonate (PC) | 0.085% + 1% TiO₂ | 300°C | Grade 6-7 | Grade 4-5 |
| PET (Polyester) | 0.064% + 1% TiO₂ | 280°C | Grade 6-7 | — |
| PMMA (Acrylic) | 0.090% + 1% TiO₂ | 280°C | Grade 6-7 | Grade 4-5 |
| Polystyrene (PS) | 0.160% + 2% TiO₂ | 280°C | Grade 6-7 | Grade 4-5 |
| ABS | 0.340% + 4% TiO₂ | 280°C | — | — |
| HIPS | Recommended | 260°C | — | — |
| SAN / AS | Recommended | 260°C | — | — |
| Rigid PVC (R-PVC) | Recommended | 260°C | — | Grade 5 |
| PA66 (Nylon) | Potential use | — | — | — |
| PBT | Potential use | — | — | — |
Recommended Polymer Applications :
Highly Recommended (●): PET, PS, HIPS, ABS, PC, PMMA, SAN
Potential Use (○): PBT, POM
Polyester Fibers & Textiles:
Solvent Orange 105 (also known as Disperse Orange 25) is widely used in synthetic fiber coloration :
Dope Dyeing / Spin Dyeing: Added during fiber spinning for permanent, wash-fast coloration of polyester fibers
Textile Applications: Provides uniform reddish-orange color with good lightfastness for polyester fabrics
E-Type Disperse Dye: Classified as an E-type disperse dye, suitable for high-temperature dyeing processes
Printing Inks & Coatings:
Solvent Orange 105 is suitable for industrial coating and ink applications :
Gravure & Flexographic Inks: Provides bright orange coloration with good solubility in organic solvents
Industrial Coatings: Suitable for solvent-based coating formulations
Paints: Used in high-performance paint systems
Fuels, Oils & Lubricants:
The dye's excellent solubility in non-polar systems makes it ideal for hydrocarbon applications :
Gasoline & Fuels: Used as a marker dye for fuel identification
Oils & Lubricants: Colors industrial and automotive lubricants
Waxes & Candles: Provides uniform orange coloration for decorative and industrial wax products.
4.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 certifications, such as Reach certification.
8) Different payment methods: TT LC, etc.
9) Providing door-to-door DDP service.
5.Packing information:
Usually is 25Kg/drum or paper box or bag with inner double PE liner Or provide customized packaging according to customer requirements.
Contact Us
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