Description

Mordant Green 26 is a synthetic organic dye belonging to the mordant dye class, identified by CAS NO 6359-73-5. This compound is valued for its ability to form stable, colored complexes with metal ions, resulting in vibrant and wash-fast shades. It is primarily required by manufacturers in the textile and leather industries for dyeing natural fibers like wool and silk, as well as for specialized staining applications in biological and analytical fields.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and other protein-based fibers, often using chromium or aluminum mordants to achieve deep, complex green shades with excellent fastness properties.
• Leather Coloring: Used in the tanning and finishing industry to impart durable and uniform color to leather goods.
• Biological Staining: Employed as a histological stain in microscopy for contrast enhancement and specific tissue component identification in laboratory settings.
• Analytical Chemistry: Functions as a colorimetric indicator or complexometric agent in certain titration methods and metal ion detection assays.
• Ink Formulation: A component in the manufacture of specialized inks for security printing, art, or industrial marking.
• Paper Dyeing: Used for coloring high-grade papers where specific color tones and stability are required.

Basic Information

Product Name	Mordant Green 26
CAS No.	6359-73-5
Molecular Formula	C30H15FeN3Na3O15S3
Molecular Weight	879.43 g/mol
Synonyms	Acid Chrome Dark Green; C.I. Mordant Green 26; Chromium Complex Green; C.I. 18855; Mordant Dark Green; Diamond Green G; Eriochrome Dark Green; Solochrome Dark Green; Chromotrope Dark Green; Wool Green S
EINECS	228-785-6

Quality Control

Our Mordant Green 26 is produced under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is tested against key parameters including color strength, shade, solubility, and metal content to meet precise industrial specifications. A Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with every shipment.

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 and incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Dark green to black powder or granules
Identification (IR)	Conforms to standard
Assay (Dye Content)	Min. 95%
Moisture Content	Max. 5.0%
Water Solubility	Conforms
Ash Content	Max. 1.0%
Heavy Metals (as Pb)	Max. 20 ppm
Chromium Content	Within specified range

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