| Identification | More | [Name]
Orange IV | [CAS]
554-73-4 | [Synonyms]
4-(4-ANILINOPHENYLAZO)BENZENESULFONIC ACID SODIUM SALT
ACID ORANGE 5
ACID YELLOW D
ANILINE YELLOW
ANILINE YELLOW, WATER SOLUBLE
CI 13080
CI NO 13080
DIPHENYLAMINE ORANGE
ORANGE IV
ORANGE IV SODIUM SALT
P-(P-ANILINOPHENYLAZO) BENZENESULFONIC ACID SODIUM SALT
S NO 179
SODIUM P-(P-ANILINOPHENYLAZO)BENZENESULFONATE
TROPAELIN OO
TROPAEOLIN
TROPAEOLIN O
TROPAEOLIN OO
4-[[4-(phenylamino)phenyl]azo]-benzenesulfonicacimonosodiumsalt
Benzenesulfonicacid,4-[[4-(phenylamino)phenyl]azo]-,monosodiumsalt
c.i.acidorange5, | [EINECS(EC#)]
209-071-4 | [Molecular Formula]
C18H14N3NaO3S | [MDL Number]
MFCD00038130 | [Molecular Weight]
375.38 | [MOL File]
554-73-4.mol |
| Chemical Properties | Back Directory | [Appearance]
yellow-brown or orange powder | [Melting point ]
>300°C | [storage temp. ]
Inert atmosphere,Room Temperature | [solubility ]
Solubility Soluble in water, ethanol | [Colour Index ]
13080 | [form ]
Powder | [pka]
2.0(at 25℃) | [color ]
S. No.: 179 | [PH Range]
1.3(red)-3.2(yellow) | [Stability:]
Stable. Incompatible with strong oxidizing agents. | [λmax]
527nm, 443nm | [Merck ]
9776 | [Major Application]
Sensors, lithographic plates, optical recording media, photoreceptor, inks, indication system for product exceeding threshold temperature, lubricants, textiles, food storage, determination of amiodarone, astemizole, bromhexine, clomipramine, deutiforin, domperidone, fluoroquinolone, roxithromycin, terfenadine, thiabendazole, antihistamines | [CAS DataBase Reference]
554-73-4(CAS DataBase Reference) | [EPA Substance Registry System]
554-73-4(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn,Xi | [Risk Statements ]
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin .
R41:Risk of serious damage to eyes.
R37/38:Irritating to respiratory system and skin .
R22:Harmful if swallowed. | [Safety Statements ]
S36/37:Wear suitable protective clothing and gloves .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S36:Wear suitable protective clothing . | [HazardClass ]
IRRITANT | [HS Code ]
29270000 |
| Hazard Information | Back Directory | [Chemical Properties]
yellow-brown or orange powder | [Uses]
As indicator. pH: red 1.4 to yellow 2.6. | [Preparation]
ommonly known as acidic orange IV. 4-Aminobenzenesulfonic acid diazo, with Diphenylamine coupling. | [Properties and Applications]
yellow orange. Soluble in water and ethanol for orange, slightly soluble in ethyl ether, insoluble in benzene. The strong sulfuric acid is purple, dilute appears after the purple precipitation. In water solution to join hydrochloric acid appear purple precipitation; With sodium hydroxide appear yellow precipitation. Used for wool, silk, cotton, vinegar fiber etc fiber dyeing. Can also be used to indicator, paper, soap kind, straw and leather color. Good levelness, discharge sex medium, dyeing encounter copper, iron ion color shade darker.
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Standard
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Light Fastness
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Soaping
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Persperation Fastness
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Oxygen bleaching
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Fastness to seawater
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Fading
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Stain
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Fading
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Stain
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Fading
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Stain
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ISO
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3
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1-2
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2
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1-2
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1-2
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| [Purification Methods]
Recrystallise it twice from water [Kolthoff & Gus J Am Chem Soc 60 2516 1938]. [Beilstein 16 II 171.] |
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