Molecular Formula | C25H15Cl3N9Na3O10S3 |
Molar Mass | 872.96 |
Density | 1.93[at 20℃] |
Melting Point | >300°C |
Boling Point | 1261.18℃[at 101 325 Pa] |
Water Solubility | 2.87mg/L at 25℃ |
Solubility | DMSO (Slightly), Methanol (Slightly) |
Vapor Presure | 0Pa at 25℃ |
Appearance | Powder |
Color | Gold-orange to orange-brown |
Storage Condition | Refrigerator, Under inert atmosphere |
Physical and Chemical Properties | Light yellow uniform powder or granules. Solubility in water (50 °c) was 50g/L. The aqueous solution was yellow, and 1mol/L sodium hydroxide was added, followed by addition of sodium hydrosulfite and warming, followed by addition of sodium perborate. In concentrated sulfuric acid, dilute sulfuric acid, concentrated nitric acid, dilute nitric acid are yellow. |
Safety Description | 24/25 - Avoid contact with skin and eyes. |
WGK Germany | 3 |
HS Code | 32041900 |
color index | 18972 |
LogP | -4.47 |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
use | reactive light yellow K-6G can be used for dyeing cotton or viscose fibers, but it has low affinity for fibers and poor chlorine bleaching fastness. It is mainly used for direct printing of cotton or viscose fiber fabrics. Due to its low affinity for fibers, it is not fixed and has good washability and does not stain the white ground. Single-use dyeing of tender yellow is incomparable, and it is K-GL with reactive turquoise blue to dye fresh and tender green, and K-G with reactive orange to dye golden yellow. It can also be printed with soluble vat dyes, but it is not suitable for printing on color phenol yellow cloth. It can also be used for dyeing wool, silk, nylon, vinylon, and direct printing of silk. Compared with reactive light yellow X-6G, polyester-cotton blended fabric dyed in the same bath with disperse dyes has better soaping fastness and less white soil pollution. used for dyeing cotton and viscose fiber used for printing cotton, hemp, viscose, silk and other fabrics |
Production method | Using 2,4-diaminobenzenesulfonic acid, p-aminobenzenesulfonic acid, cyanuric acid and 1-(2 ',5'-dichloro-4 '-sulfophenyl)-3-methyl -5-pyrazolone as raw materials, first 2, 4-diaminobenzenesulfonic acid is condensed with melamine, and then the condensation product is diazotized, it is coupled with 1-(2',5 '-dichloro-4'-sulfophenyl)-3-methyl -5-pyrazolone, and finally condensed with p-aminobenzenesulfonic acid, salted out, filtered, and dried to obtain the finished product.. |