Natural Indigo Blue Dye 94% Granular Powder Indigo for Extensive Use

• Customization: Available
• CAS No.: 482-89-3
• Formula: C16h10n2o2
• Model NO.: Food additives
• Certification: BRC, ISO, FDA, HACCP
• Packaging Material: Plastic
• Storage Method: Normal
• Shelf Life: >12 Months
• Color: Blue
• Resource: Natural
• Appearance: Powder
• Usage: Textile, Paint, Paper, Plastic, Food, Ink, Leather
• Grade: Food Grade, Cosmetic Grade, Industrial Grade
• Type: Alkaloid
• Transport Package: Bag
• Specification: 99%
• Trademark: zhuofeng
• Origin: China
• HS Code: 3502110000
• Production Capacity: 5000mt/Month

Product Description

Indigo naturalis extract is a concentrated mixture made by extracting (or ''pulling'') isatis indigotica's chemical constituents out of the inert plant fiber (cellulose) with a solution of grain alcohol and water. Good indigo naturalis extract should optimally preserve the aroma, taste and biological activity of isatis indigotica from which it is made.

Item	Standard	Test Result	Test Method
Appearance	Dark blue fine powder	Conform	Visual
Particle Size	90% over 80 mesh	Conform	80 mesh screen
Solubility	100% soluble in water	Conform	Visual
Moisture Content	≤5.0%	3.9%	5g / 105°C / 2hrs
Ash Content	≤5.0%	3.08%	2g / 525°C / 3hrs
Heavy Mental	≤ 20ppm	Conform	Atomic absorption method
As	≤ 2ppm	Conform	Atomic absorption method
Pb	≤ 2ppm	Conform	Atomic absorption method
Pesticide Residues	≤0.1ppm	Conform	Gas chromatography
Sterilization Method	High temperature, high pressure	Conform
Total Bacteria Count	≤1000cfu/g	Conform
Total Yeast Count	≤100cfu/g	Conform
E. Coli	Negative	Conform
Salmonella	Negative	Conform
Staphylococcus	Negative	Conform

    Indigo Blue is primarily used as a dye in textile industries, particularly for dyeing cotton yarns to produce denim for jeans. It is also used in the dyeing of wool and silk and in the production of various industrial products. For dyeing on cotton fabrics and Jeans and making up indigo bromide. or made into organic pigment, moreover, be used to make 5.5'-7.7'-tetraroma indigo, biochemical medicament, and indicator.

· 1kg/aluminium foil bag, with two plastic bags inside.
· 25kg/fiber drum, with two plastic bags inside.
· Size:ID 42cm*H52cm,0.08m3/drum;
· Net Weight:25kgs Gross Weight:28kgs.

·≤50kg, Express delivery recommended, usually called as DDU service;
·≤500kg,Air shipping recommended, usually called as CIF service;
·>500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;
·For high value products, please select air shipping and express delivery for safety.