Description

Alkali Fast Green 10Ga is a synthetic, triphenylmethane-based dye belonging to the class of fast green colorants. This product is valued for its vibrant green hue and its specific compatibility with alkaline environments, making it a critical component for coloration in demanding industrial applications. It is primarily sought after by manufacturers in the textile, paper, and specialty ink industries where color fastness and stability are paramount.

Application

• Primary dyeing and printing agent for textile fibers, particularly those processed in alkaline conditions.
• Coloration of paper and paperboard for decorative and packaging purposes.
• Manufacturing of specialty inks, including security and flexographic inks.
• Staining agent in microscopy and biological research (as a component of specific histological stains).
• Colorant for soaps, detergents, and cleaning products.
• Pigment for leather finishing and surface coatings.

Basic Information

Product Name	Alkali Fast Green 10Ga
CAS No.	5863-51-4
Molecular Formula	C37H34N2O10S3Na2
Molecular Weight	808.85 g/mol
Synonyms	Fast Green FCF; Food Green 3; CI 42053; FD&C Green No. 3; Acid Green 3; E143; Green 1724; Wool Green S; Lissamine Green B
EINECS	227-519-5

Quality Control

Our Alkali Fast Green 10Ga is manufactured under a strict quality management system. Each batch is tested to ensure it meets precise color strength, purity, and solubility specifications relevant for industrial use. While not typically produced as a food or pharmaceutical grade, our quality protocols ensure batch-to-batch consistency and reliability. A Certificate of Analysis (COA) detailing key parameters 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 ambient temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to prevent degradation of the colorant.

Specification

Item	Specification
Appearance	Dark green to blue-green powder
Identification (IR)	Conforms to standard
Assay (Color Content)	≥ 85%
Loss on Drying	≤ 10.0%
Water Solubility	Freely soluble
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm

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