Acid Yellow 73, also known as Uranine or fluorescein sodium, is a water-soluble, brilliant yellow synthetic acid dye with a strong green fluorescence in solution. It is used in applications like leak detection, water treatment, and coloring certain products such as liquid dish detergents and aquatic feed.
Basic details of Uraine
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Chemical Name |
Acid Yellow 73, Uranine, Fluorescein Sodium |
|
Molecular Formula |
C20H10Na2O5 |
|
CAS Number |
518-47-8 |
|
Molecular Weight |
376.27 g/mol |
|
Appearance |
Brilliant yellow in powder or granule form |
|
Solubility |
Soluble in water and ethanol |
Applications
Textile dyeing
Used to dye natural fibers like wool and silk, resulting in vibrant yellow shades.
Applies to synthetic fibers like nylon.
Cosmetics and personal care
Used in soaps, shampoos, creams, and other water-based beauty formulations.
Also used in lipstick and other cosmetic items.
Properties
Light fastness: 5-6
Washing fastness: Good
Perspiration fastness: 4
Rubbing fastness: 3-4
Handling
Ventilation: Use only in well-ventilated areas, preferably with local exhaust ventilation or in a chemical fume hood.
Personal Protective Equipment (PPE):
o Wear chemical safety goggles, rubber gloves, and suitable protective clothing.
o Wear an approved respirator to avoid inhaling dust.
Hygiene: Wash hands thoroughly after handling. Remove contaminated clothing and wash before reuse.
Avoid: Avoid contact with eyes, skin, and clothing. Do not ingest or inhale.
Static and Ignition: Take precautions against static discharge. Use non-sparking tools and ground equipment, as the product can be a combustible dust.
Storage
Location: Store in a cool, dry, and well-ventilated place.
Protection: Keep away from direct sunlight and heat sources.
Containers: Store in tight, light-resistant containers, and keep them tightly closed.
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: