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| CARMOISINE | ||
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PRODUCT IDENTIFICATION |
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| CAS NO | 3567-69-9 |
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| EINECS NO. | 222-657-4 | |
| FORMULA | C20H12N2Na2O7S2 | |
| MOL WT. | 502.42 | |
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H.S. CODE |
3204.12 | |
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TOXICITY |
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| DERIVATION |
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| SYNONYMS | C.I. Food Red 3; | |
| 2-(4-Sulfo-1-Napthylazo)-1-Naphthol-4-Sulfonic Acid), Disodium Salt; 4-hydroxy-3-(4- sulfonato-1-naphthylazo) naphthalene-1-sulfonate, Disodium Salt; Mordant Blue 79; azorubine; Acid Red 14; C.I. 14720; | ||
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CLASSIFICATION |
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PHYSICAL AND CHEMICAL PROPERTIES |
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| PHYSICAL STATE |
red powder | |
| MELTING POINT | >300 C | |
| BOILING POINT |
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| SPECIFIC GRAVITY |
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| SOLUBILITY IN WATER |
Soluble (120g/l) |
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| PH | 6 - 8 | |
| VAPOR DENSITY |
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| NFPA RATINGS | Health: 2; Flammability: 0; Reactivity: 0 | |
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REFRACTIVE INDEX |
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| FLASH POINT |
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| STABILITY | Stable under ordinary conditions. | |
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APPLICATIONS |
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| CARMOISINE is a synthetic acid dye containing both NN and CC chromophore groups (pyrazolone dye). It is a red dye; soluble in water; melting point >300 C; used in coloring food, cosmetics and meications (C.I. Food Red 3). But it is banned by the FDA due to carcinogen suspect. The chemical designation is 4-hydroxy-3-(4-sulfonato-1- naphthylazo) naphthalene-1-sulfonate, disodium salt. Acid dyes are water-soluble dyes employed mostly in the form of sodium salts of the sulfonic or carboxylic acids. They are anionic which attach strongly to cationic groups in the fibre directly. They can be applicable to all kind of natural fibres like wool, cotton and silk as well as to synthetics like polyesters, acrylic and rayon. But they are not substantive to cellulosic fibres. They are also used in paints, inks, plastics and leather. | ||
| SALES SPECIFICATION | ||
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APPEARANCE |
red powder | |
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DYE CONTENT |
85.0% min |
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| VOLATILE MATTER |
10.0% max |
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WATER INSOLUBLES |
0.2% max |
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| SUBSIDIARY DYES |
1.5% max |
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| INTERMEDIATE IMPURITY |
0.5% max |
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| ARSENIC |
3ppm max |
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| LEAD |
10ppm max |
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| MERCURY |
1ppm max |
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| TRANSPORTATION | ||
| PACKING | 25kgs in fiber drum | |
| HAZARD CLASS | 3 | |
| UN NO. | 1108 | |
| BIOLOGICAL STAINS, INDICATORS | ||
| PRICES | ||
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