Acid Yellow 42
acid yellow 42 (C.I. 22910)
CAS: 6375-55-9
Molecular Formula: C32H27N8NaO8S2
Acid Yellow 42 - Names and Identifiers
| Name | acid yellow 42 (C.I. 22910) |
| Synonyms | C.I. 22910 Acid Yellow 42 ACID YELLOW 42 Acid Yellow 42 CI ACID YELLOW 42 COOMASSIE YELLOW R C.I. Acid Yellow 42 SULPHON YELLOW RS-CF BENZYL FAST YELLOW RS CALCOCID MILLING YELLOW R acid yellow 42 (C.I. 22910) C.I. Acid Yellow 42 disodium salt C.I. Acid Yellow 42, disodium salt [1,1'-biphenyl]-2,2'-disulfonicacid,4,4'-bis[(4,5-dihydro-3-methyl-5-oxo-1-ph disodium 4,4-bis(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-ylazo)-1,1-biphenyl-2,6-disulphonate disodium 4,4'-bis[(E)-(3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)diazenyl]biphenyl-2,2'-disulfonate [1,1'-Biphenyl]-2,2'-disulfonicacid,4,4'-bis[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-,disodiumsalt disodium 5-(5-hydroxy-3-methyl-1-phenyl-pyrazol-4-yl)azo-2-[4-(5-hydroxy-3-methyl-1-phenyl-pyrazol-4-yl)azo-2-sulfonato-phenyl]benzenesulfonate |
| CAS | 6375-55-9 |
| EINECS | 228-940-9 |
| InChI | InChI=1/C32H26N8O8S2.2Na/c1-19-29(31(41)39(37-19)23-9-5-3-6-10-23)35-33-21-13-15-25(27(17-21)49(43,44)45)26-16-14-22(18-28(26)50(46,47)48)34-36-30-20(2)38-40(32(30)42)24-11-7-4-8-12-24;;/h3-18,41-42H,1-2H3,(H,43,44,45)(H,46,47,48);;/q;2*+1/p-2 |
Acid Yellow 42 - Physico-chemical Properties
| Molecular Formula | C32H27N8NaO8S2 |
| Molar Mass | 738.73 |
| Density | 1.617[at 20℃] |
| Water Solubility | 17.27g/L at 20℃ |
| Physical and Chemical Properties | Bright yellow powder. Soluble in water, the aqueous solution is lemon-yellow. The color did not change when concentrated hydrochloric acid and concentrated sodium hydroxide were added to the aqueous solution. Soluble in ethanol lemon yellow, slightly soluble in acetone. In concentrated sulfuric acid was lemon yellow, diluted color unchanged. The color changed slightly to red and dark when copper ion was used, dark to green when iron ion was used, and unchanged when chromium ion was used. |
Acid Yellow 42 - Reference Information
| LogP | -1.122 at 20℃ |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | acid yellow 42 is an acid dye, bright yellow powder. Soluble in water, the aqueous solution is lemon-yellow. The color did not change when concentrated hydrochloric acid and concentrated sodium hydroxide were added to the aqueous solution. Soluble in ethanol lemon yellow, slightly soluble in acetone. It has been reported that it can be used to prepare a nylon island super fiber leather fabric composite dye and a three-in-one crayon which is easy to process, easy to scrub with water, relatively environmentally friendly, and integrates crayon, color powder and water powder. |
| Application | CN201310479718.9 provides a nylon island super fiber leather fabric composite dye and its application, the dye is composed of acid dye and reactive dye, which can achieve the same dyeing of PU and nylon superfine fiber, and is especially suitable for nylon super fiber leather dyeing, the color difference is easy to control, and the effect of the cloth surface is more uniform. The invention provides a composite dye for nylon island super-fiber leather fabric, characterized in that the composite dye comprises an acid dye and a reactive dye, wherein the mass percentage of the acid dye is 40%-80%; the mass percentage of the reactive dye is 60%-20%. The acid dye is C.I. Acid Yellow 42, 61, 117, 219,C.I. Acid red 37, 97, 266, 299, 337, 361,C.I. Acid Violet 7, 9, 51, 54, etc. |
| Use | acid yellow R is mainly used for dyeing wool and direct printing of wool, silk and viscose fabrics. For wool and other fibers in the same bath dyeing, acetate fiber and cellulose fiber slightly stained. Good discharge. It can also be used for nylon dyeing, leather coloring, etc. |
| production method | with benzidine -2,2 '-bissulfonic acid and 1-phenyl -3-methyl -5-pyrazolone as raw materials, the former is first double nitrided, and then coupled with the latter to obtain the product. After salting out, filtration, drying, grinding to get the finished product.. |
Last Update：2024-04-09 20:45:29
