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Contact SupplierWe have in our store optimum quality Direct Red 31Dye for dyeing cellulosic fibers. Our Direct Red 31 is formulated with complete precision under the supervision of experts. It is thoroughly tested on various parameters to ensure high quality and efficacy. We pack our direct dye in quality approved material to preserve its physical and chemical properties for long. Owing to our high production capacity, we specialize in catering to the bulk orders of Direct Red 31 dye with utmost ease.
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General Properties | ||
Product Name | Direct Red 31 | |
Commercial Name | Red 12B | |
Color Index Number | 29100 | |
C.A.S. Number | 5001-72-9 | |
EC Number | 225-669-8 | |
Chemical Name | disodium 7,7'-iminobis[4-hydroxy-3-(phenylazo)naphthalene-2-sulphonate] | |
Molecular Formula | C32H23N5Na2O8S2 | |
Physical Properties | ||
Solubility at 90 C | 60 GPL | |
Insoluble | 0.15% w/w | |
Fastness Properties | ||
Light fastness | 3 | |
Washing fastness | 4 | |
Perspiration | 3 |