Description

Mordant Green 28 is a synthetic organic dye belonging to the mordant dye class, identified by CAS NO 6222-44-2. This compound is valued for its ability to form stable, colorfast complexes with metal ions, resulting in vibrant and durable shades. It is primarily utilized in industrial sectors requiring robust coloration, such as textile dyeing for wool and silk, as well as in specialized applications like biological staining and the coloration of leather and paper.

Application

• Textile Dyeing: Primary application for dyeing protein fibers like wool and silk, often using chromium or aluminum mordants to achieve deep, wash-fast green shades.
• Leather Coloring: Used in the tanning industry to impart durable color to leather goods.
• Biological Staining: Employed in histology and microscopy as a specialized stain for tissue samples.
• Paper Industry: Applied in the production of colored papers and specialty packaging.
• Ink Formulation: A component in the manufacture of certain printing inks requiring specific color properties.
• Research & Development: Serves as a chemical intermediate or reference standard in laboratory settings.

Basic Information

Product Name	Mordant Green 28
CAS No.	6222-44-2
Molecular Formula	C30H15FeN3Na3O15S3
Molecular Weight	879.43 g/mol
Synonyms	Acid Chrome Green G; Chrome Green G; C.I. Mordant Green 28; C.I. 44535; Diamond Green G; Eriochrome Green G; Solochrome Green G; Mitsui Chrome Green G
EINECS	228-300-1

Quality Control

Our Mordant Green 28 is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for color strength, purity, and metal content. A Certificate of Analysis (COA) detailing parameters such as assay, shade, and solubility is provided with every shipment to guarantee consistency and performance for your application.

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). This product is hygroscopic (moisture-sensitive); ensure the container is kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark green powder or granules
Identification (IR)	Conforms to standard
Assay (Color Strength)	Min. 98%
Moisture Content	Max. 5.0%
Water Solubility	Conforms
Ash Content	Max. 1.0%
Heavy Metals (as Pb)	Max. 20 ppm

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