Name | acid red 151 (C.I. 26900) |
Synonyms | CI 26900 C.I. 26900 Acid Red 151 ACID RED 151 C.I. Acid Red 151 Acid Scarlet F-2R amacidneutralredbw Acid Red 151 (C.I.) acidred151(c.i.26900) acid red 151 (C.I. 26900) TYUFVOHUHUKSSV-RVTJCSDESA-N C.I. Acid Red 151, monosodium salt C.I. Acid Red 151, monosodium salt (8CI) sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate sodium 4-[4-[(2-hydroxy-1-naphthyl)azo]phenyl]azobenzenesulfonate 4-[[4-[(2-hydroxy-1-naphthalenyl)azo]phenyl]azo]-benzenesulfonicacimonoso 4-((4-((2-hydroxy-1-naphthalenyl)azo)phenyl)azo)-benzenesulfonicacimonoso |
CAS | 6406-56-0 |
EINECS | 229-029-9 |
InChI | InChI=1/C22H16N4O4S.Na/c27-21-14-5-15-3-1-2-4-20(15)22(21)26-25-17-8-6-16(7-9-17)23-24-18-10-12-19(13-11-18)31(28,29)30;/h1-14,27H,(H,28,29,30);/q;+1/p-1 |
Molecular Formula | C22H15N4NaO4S |
Molar Mass | 454.43 |
Density | 1.41[at 20℃] |
Boling Point | 855.43℃[at 101 325 Pa] |
Water Solubility | 10mg/L at 25℃ |
Vapor Presure | 0Pa at 25℃ |
Appearance | Powder |
Color | Brown |
Physical and Chemical Properties | Dark red powder. It is soluble in water, the aqueous solution is cloudy and brown-orange, and the addition of concentrated hydrochloric acid is orange-brown; The addition of concentrated sodium hydroxide solution is dark purple. Soluble in ethanol orange red, soluble in ethylene glycol ether, insoluble in other organic solvents. In concentrated sulfuric acid in blue green, diluted a weak Brown orange. |
RTECS | DB7084500 |
LogP | 2.68 at 25℃ |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Use | weak acid red BL is suitable for dyeing nylon, silk, wool and wool fabrics. Good levelness. It is also used for direct printing of silk and wool fabrics with good white drawing. When used for wool with a variety of fiber bath dyeing, acetate fibers and cellulose fibers stained. It is also used for the coloring of leather, paper and polyamide plastics. |
production method | using 4-aminoazophenyl-4 '-sulfonic acid and 2-Naphthol as raw materials, the former is first diazotized and then coupled with the latter to obtain a product.. |