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| CARMOISINE LAKE | ||
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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 | C10H12N2Na2O7S2 | |
| MOL WT. | 502.44 | |
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H.S. CODE |
3204.12 | |
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TOXICITY |
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Acid Red 14; C.I. 14720:1; Red B; | |
| Carmoisine Lake; Acid Fast Red FB; Acid Red 2C; | ||
| Chromotrope FB; Acid Rubine; Amacid Carmoisine B; Brilliant Acid Rubine M; Brilliant Carmoisine; C.I. Food Red 3:1; | ||
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| CLASSIFICATION |
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PHYSICAL AND CHEMICAL PROPERTIES |
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| PHYSICAL STATE |
red powder | |
| MELTING POINT | ||
| BOILING POINT |
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| SPECIFIC GRAVITY |
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| SOLUBILITY IN WATER |
Insoluble | |
| PH | 4 - 5 (2%) | |
| 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. Lake is a chelate formed between a mordant dye and a polyvalent metal ion (aluminum and ferric iron are common. Both have three valencies) which forms covalent and coordinate bond with fibers and proteins in a manner similar to that between the mordant and the dye and so as to form an insoluble lake. | ||
| SALES SPECIFICATION | ||
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APPEARANCE |
red powder | |
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DYE CONTENT |
12.0 - 17.0% |
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| VOLATILE MATTER |
10.0% 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 | |
| OTHER INFORMATION | ||
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