Acid Black 2, also known as Acid Nigrosine, is a versatile synthetic black dye used in various applications including leather, silk, and wool dyeing, as well as for making inks, shoe polish, and paper. It is a water-soluble acid dye that appears as a black powder and has properties like a jet or blue-black shade and high strength. It is known for its good fastness and stability.
Basic details of Nigrosien Black
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Chemical Name |
Acid Black 2 |
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Molecular Formula |
C22H14N6Na2O9S2 |
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CAS Number |
8005-03-6 |
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Molecular Weight |
616.49 g/mol |
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Appearance |
Black powder or crystal |
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Solubility |
soluble in water, ethanol, and blue solvents |
Applications
Textile dyeing: Used to color wool, silk, and nylon fibers.
Leather and wood: Effectively dyes leather, wood, and wood products like stains.
Inks: A common component in various ink formulations, including water-based, inkjet, and ballpoint pen inks.
Other products: Included in shoe polish and some lacquers and varnishes.
Properties
Light fastness: 5
Washing fastness: 4
Perspiration fastness: 4
Rubbing fastness: Moderate
Handling
To handle Acid Black 2 safely, use personal protective equipment (PPE) such as gloves, goggles, and a lab coat, and work in a well-ventilated area to avoid inhaling dust. Store the dye in a cool, dry place, away from direct sunlight and oxidizing agents. Wash your hands thoroughly after handling and dispose of waste according to local environmental regulations.
Storage
Store in a cool, dry, and well-ventilated area.
Keep out of direct sunlight and away from heat sources.
Store in tightly sealed containers to maintain product quality.
Keep away from strong oxidizing agents.
PACKAGING
Common packaging sizes include 25 kg and 50 kg HDPE Bags// HDPE Drums //Corrugated Boxes
Custom Packaging: Many suppliers offer custom packaging to suit different client requirements.
Price: