|
|
|
| TARTRAZINE | ||
|
PRODUCT IDENTIFICATION |
|
|
| CAS NO. | 1934-21-0 |
|
| EINECS NO. | 217-699-5 | |
| FORMULA | C16H12N4O9S2 | |
| MOL WT. | 534.37 | |
|
H.S. CODE |
3204.12 | |
|
TOXICITY |
|
|
| DERIVATION |
|
|
| CLASSIFICATION |
||
| SYNONYMS | Acid Yellow 23; C.I. 19140; | |
| 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-Pyrazole-3-carboxylic acid, trisodium salt; Dihydro-5-oxo-1-(4-sulfophenyl)- 4-((4-sulfophenyl)azo)-1H- pyrazole-3- carboxylic acid, trisodium salt; Filter Yellow; Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4- sulfophenyl)- 4-((4-sulfophenyl)azo)-, trisodium salt; Tartrazine C; Trisodium 1-(4-sulfonatophenyl)-4-(4-sulfonatophenylazo)-5- pyrazolone-3- carboxylate; Trisodium 1-(4-sulfophenyl)-4-((4-sulfophenyl)azo) -1H-pyrazole-3-carboxylate; FD & C Yellow No.5; | ||
|
PHYSICAL AND CHEMICAL PROPERTIES |
||
| PHYSICAL STATE |
red powder | |
| MELTING POINT | >300 C (Decomposes at 250 C) | |
| BOILING POINT |
| |
| SPECIFIC GRAVITY |
1.85 - 1.95 | |
| SOLUBILITY IN WATER |
Soluble | |
| PH | ||
| VAPOR DENSITY |
| |
| NFPA RATINGS | Health: 2; Flammability: 0; Reactivity: 0 | |
|
REFRACTIVE INDEX |
| |
| FLASH POINT |
44 C | |
| STABILITY | Stable under ordinary conditions. | |
|
APPLICATIONS |
||
| Tartrazine is a synthetic acid dye containing both NN and CC chromophore groups (pyrazolone dye). It is a bright orange-yellow powder; soluble in water; used in coloring food, cosmetics and meications (FD&C Yellow No. 5). It is used in dying silk and wool. The chemical designation is 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[ (4-sulfophenyl) azo]-1H- Pyrazole- 3-carboxylic acid, trisodium 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 | ||
|
APPEARANCE |
Orange to red powder | |
|
DYE CONTENT |
85.0% min |
|
| VOLATILE MATTER |
10.0% max |
|
|
WATER INSOLUBLES |
0.2% max |
|
| SUBSIDIARY DYES |
1.5% max |
|
| INTERMEDIATE IMPURITY |
0.5% max |
|
| ARSENIC |
3ppm max |
|
| LEAD |
10ppm max |
|
| MERCURY |
1ppm max |
|
| TRANSPORTATION | ||
| PACKING | 25kgs in fiber drum | |
| HAZARD CLASS | 3 | |
| UN NO. | 1108 | |
| PRICES | ||
|
|
||
|
|
|
|
|
