Weak Acid Orange GS
Acid Orange 33
CAS: 6507-77-3
Molecular Formula: C34H28N4Na2O8S2
Weak Acid Orange GS - Names and Identifiers
| Name | Acid Orange 33 |
| Synonyms | Acid Orange 33 Tracid Orange GS Weak acid orange Coomassie Orange g Telon Fast Oraneg G Weak Acid Orange GS CoomassieFastOrangeGC.I.24780 disodium 7-hydroxy-8-[[4-[1-[4-[(4-hydroxyphenyl)azo]phenyl]cyclohexyl]phenyl]azo]naphthalene-1,3-disulphonate Disodium 7-hydroxy-8-((4-(1-(4-((4-hydroxyphenyl)azo)phenyl)cyclohexyl)phenyl)azo)naphthalene-1,3-disulphonate 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-((4-(1-(4-((4-hydroxyphenyl)azo)phenyl)cyclohexyl)phenyl)azo)-, disodium salt disodium (8Z)-7-oxo-8-{2-[4-(1-{4-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]phenyl}cyclohexyl)phenyl]hydrazinylidene}-7,8-dihydronaphthalene-1,3-disulfonate |
| CAS | 6507-77-3 |
| EINECS | 229-396-5 |
| InChI | InChI=1/C34H30N4O8S2.2Na/c39-28-15-13-27(14-16-28)36-35-25-9-5-23(6-10-25)34(18-2-1-3-19-34)24-7-11-26(12-8-24)37-38-33-30(40)17-4-22-20-29(47(41,42)43)21-31(32(22)33)48(44,45)46;;/h4-17,20-21,35,37H,1-3,18-19H2,(H,41,42,43)(H,44,45,46);;/q;2*+1/p-2/b38-33+; |
Weak Acid Orange GS - Physico-chemical Properties
| Molecular Formula | C34H28N4Na2O8S2 |
| Molar Mass | 730.71766 |
| Physical and Chemical Properties | Gold-orange powder. Soluble in water, the aqueous solution is Golden Orange, the addition of concentrated hydrochloric acid is orange; The addition of concentrated sodium hydroxide solution is Brown yellow. Soluble in ethanol, golden orange. It was orange in concentrated sulfuric acid and remained Orange after dilution. |
Weak Acid Orange GS - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | weak acid orange GS is mainly used for dyeing wool, silk, nylon and direct printing of fabrics, good permeability. Also used for leather, hemp, straw coloring. used for dyeing and printing of nylon, silk and wool fabrics mainly used for printing and dyeing of wool, silk and nylon fabrics, can also be used for leather dyeing used for nylon, silk and wool fabric dyeing and printing, permeability and white good, can also be used for leather, hemp and straw dyeing. |
| production method | diazotization of 4,4 '-diaminodiphenylcyclohexane hydrochloride, first coupling with G salt, it was obtained by coupling with phenol for the second time. 4, 4 '-diamino diphenyl cyclohexane hydrochloride (50-60%) 203.4g salt (about 70%) 335 sodium nitrite (40%) 84 phenol (more than 98%) 39.5 Industrial salt 2200 , 4'-diaminodiphenylcyclohexane (4, 4 '-cyclohexylidenedianiline), phenol, G acid as raw materials, first 4, 4'-diaminodiphenylcyclohexane double nitridation, and then the first coupling with G acid, the resulting product was then coupled a second time with phenol to give the product. The final product was obtained by filtration, drying and pulverization.. After diazotization of 1.139mol of 4,4 '-diaminodiphenylcyclohexane, 2.313mol of sodium nitrite, it is coupled to 1.4mol of acid to the end point. Then 1.235mol of phenol was added and reacted at 0-3 °c for 1H. pH = 10 was adjusted with sodium carbonate, and the reaction was continued for 10h before filtration. The filter cake is melted with hot water, treated with 1.65 mol of calcium carbonate (potassium carbonate is currently used in production) for 1H to form salt, hot filtered, the filtrate salted out, filtered and dried to give about of dye. 4,4 '-diaminodiphenylcyclohexane preparation: 8mol cyclohexanone, 28mol aniline, 28.5mol hydrochloric acid, 31.49mol sodium hydroxide in the reactor heated to 120-125 ℃ (p = 0.1-0.15MPa), reaction 10H, the unreacted aniline was distilled off, filtered and washed with water to give the product. |
Last Update：2024-04-09 02:00:10
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