Indigo CAS# 482-89-3
Indigo, Promotion Season Now in Store and Free Sample for Testing with Factory Price
- Appearance: Dark blue grain.
- Assay: 93.5%min.
- Packaging: 25kg/bag.
- Sample: Available.
Indigo: The Complete Guide
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Quality Control of Indigo
Quality Control & MSDS
Packing of Indigo
Description of Indigo
Indigo dye is an organic compound with a distinctive blue color (see indigo). Historically, indigo was a natural dye extracted from plants, and this process was important economically because blue dyes were once rare. A large percentage of indigo dye produced today – several thousand tons each year – is synthetic. It is the blue often associated with blue jeans.
Basic Info of Indigo
UN 3264 8/PG 3
Appearance & Physical State
Dark blue powder (or granule)
400.4ºC at 760mmHg
Stable. Incompatible with strong oxidizing agents.
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
1.27E-06mmHg at 25°C
What is Indigo?
With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Indigo which has developed particularly rapidly in recent years. Do you know about Indigo?
The official answer: Indigo, with the molecular formula C16H10N2O2, is a water-soluble non-azo colorant. Indigo pigment is one of the oldest pigments known to man and is widely used in food, medicine, and printing, and dyeing industries.
What’s the application of Indigo?
Mainly used for dyeing cotton yarn, cotton cloth, wool, or silk, the pigment is an important product of pigmentation treatment of reduction dye indigo, with excellent light resistance, weather fastness, and heat resistance stability, giving blue tones, and can be prepared in liquid dispersion dosage form, mainly used in viscose fiber raw stock coloring and printing and dyeing. It is used as a biochemical agent and indicator as well as dyeing of cotton yarn, cotton cloth, wool or silk, etc. Used as a food coloring agent, China’s regulations can be used in red and green silk, the maximum use of 0.02g/kg; in juice (flavor) drinks, carbonated beverages, prepared wine, candy, pastries on the colorful, dyed cherry cans (for decoration), plums, the maximum use of 0.10g/kg; in the maximum use of macerated vegetables 0.01g/kg.
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