Audited Supplier
ST-Indigo powder
482-89-3
C16h10n2o2
207-586-9
Blue
Blue Powder
Cosmetic, Paper, /
Natural Silk
Threne Dark Blue BO
Indigo Powder
Vat Blue 6
Sentian-Indigo Powder
Single Item
Shaanxi, China
1.500kg
Powder
Indigo Powder
Indigo Powder
Indigo Powder
Sentian
Drum, Aluminum Foil Bag
2years
Cool Dry Place
Indiaatin/Indiao Rluo
23X33X5cm
COA &MSDS
SENTIAN
Aluminium Bag Outside and Double Plastic Bag Insid
98%
Shaanxi, China
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.
Product name | Indigo powder | |||
From | Powder | |||
Appearance | Blue powder | |||
Package | Bottle,Drum,Vacuum Packed,Foil bag | |||
Place of Origin | xi'an ,china | |||
Mainly used for dyeing cotton yarn, cotton cloth, wool or silk
This pigment is an important pigment treated product of indigo, which has excellent light resistance, climate fastness, and heat stability. It provides a blue color tone and can be used to prepare liquid dispersion formulations. It is mainly used for dyeing and printing of viscose fiber raw slurry.
| Items | Requirements | Results |
| Physical & Chemical | ||
| Appearance | powder | Conform |
| Odor | Characteristic | Characteristic |
| Particle Size | 98% pass 80mesh | Complies |
| Loss on Drying | ≤5.0% | 3.65% |
| Ash | ≤5.0% | 1.96% |
| Solvent Residue | Meet USP standard | Complies |
| Pesticide Residue | Meet USP standard | Complies |
| Heavy Metal | ||
| Lead (Pb) | ≤2.0ppm | Conform |
| (As) | ≤1.0ppm | Conform |
| (Cd) | ≤1.0ppm | Conform |
| (Hg) | ≤0.1ppm | Conform |
| Microorganism | ||
| Total Plate Count | ≤1000cfu/g | Conform |
| Yeasts and Molds | ≤100cfu/g | Conform |
| Saimonella | Negative/25g | Conform |
| E.coli | Negative | Conform |
| Assay | 98% | 98.5% |
