Acid Orange 51
Name:C.I.Acid Orange 51,C.I.26550
Molecular Structure: Single azo class
C.I.Acid Orange 51,C.I.26550,CAS 8003-88-1,860.8,C36H26N6Na2O11S3,Weak Acid Brown F-5R,Acid Orange 5R,Akacid Brown N-2RL Weak Acid Brown F-5R,Acid Orange 5R
Molecular Formula:C36H26N6Na2O11S3
Molecular Weight: 860.8
CAS Registry Number:8003-88-1
Manufacturing Methods :
2-(4-Aminophenylamino)-5-nitrobenzenesulfonic acid diazotization and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, and its product and diazotization, coupling with o-Cresol, 4-Methylbenzene-1-sulfonyl chloride and then esterified
Properties and Applications: red light orange. Dark red light orange powder. Soluble in water, ethanol, glycol ether. The strong sulfuric acid dyes for deep blue light green, dilute precipitation after brown; In nitric acid solution for olive, then into amber color. Its water solution for brown, add after strong hydrochloric acid for blu-ray black, with precipitation; Add thick sodium hydroxide solution colour and lustre is unchanged. This product used for wool, silk, polyamide fiber dyeing, also used in wool blended fabric or viscose fabric printing directly. Can also be used in leather, soap color. Dyed hair and scattered over the tops of often used alone.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 6 | 4-5 | 4-5 | 5 | 4 | 4-5 | 4-5 | 5 |
| AATCC | 4 | 3 | 3 | 4 | 4 | 4 | 4-5 | 4-5 |
List of Suppliers:
Akacid Brown N-2RL (Aakash Chemicals & Dyestuffs Inc)
Aminyl Brown F-5R( Sudarshan Chemical Industries Ltd )
Best Acid Milling Brown 5R( Oriental Giant Dyes and Chemical Ind Corp )
Chenitan Brown OR( Chennai Color Chem Pvt Ltd )
Dupont Neutral Brown RS (Classic Dyestuffs Inc)
Erionyl Brown RXL (Classic Dyestuffs Inc)
Fast Silk Brown R Conc 150%(Classic Dyestuffs Inc)
Indacid Red 2B ( Indokem Ltd )
Kayanol Milling Brown RX (Nippon Kayak u Co Ltd)
Kenanthrol Brown R ( Albion Colours Ltd)
Neutral Brown 2RS(Classic Dyestuffs Inc)
Nylomine Acid Brown C-RS (Classic Dyestuffs Inc)
Sandolan Brown N-2RL ( Clariant GmbH )
Suminol Milling Brown 5R ( Sudarshan Chemical Industries Ltd )
Triacid Fast Brown 5RN(Chemische Fabriek Triade BV)
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