Description

C.I. Acid Orange 108 is a synthetic azo dye belonging to the acid dye class, valued for its vibrant orange hue and strong affinity for protein-based fibers. This high-performance colorant is engineered to deliver excellent light and wash fastness properties, ensuring color integrity in demanding applications. It is primarily utilized by manufacturers in the textile, leather, and specialty paper industries seeking reliable and consistent coloration.

Application

• Textile Dyeing: Primary application for dyeing natural protein fibers such as wool, silk, and nylon, providing bright orange shades.
• Leather Finishing: Used in the coloration of leather goods, including apparel, footwear, and accessories.
• Paper Staining: Employed for coloring specialty papers, including decorative and security papers.
• Ink Formulation: A component in the manufacture of inks for various printing applications.
• Biological Staining: Potential use as a histological stain in laboratory settings.
• Wood Staining: Applied in the tinting and staining of wood products.

Basic Information

Product Name	C.I. Acid Orange 108
CAS No.	12220-09-6
Molecular Formula	C32H24N8Na2O8S2
Molecular Weight	758.68 g/mol
Synonyms	Acid Orange 108; Acid Orange A; C.I. 17910; Acid Leather Orange A; Acid Fast Orange A; Sodium 4,4'-(1,3,4-thiadiazole-2,5-diyl)bis(3-hydroxynaphthalene-2,7-disulfonate); 2,5-Bis(4-hydroxy-3-sulfo-1-naphthylazo)-1,3,4-thiadiazole disodium salt
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards for color strength, purity, and consistency. Each batch is analyzed against strict internal specifications to guarantee performance in your application. Certificates of Analysis (COA) documenting key parameters are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.