Acid Orange 3 Chemical Properties

Melting point:

>190oC

Density 

1.6[at 20℃]

vapor pressure 

0Pa at 25℃

storage temp. 

Room Temperature, under inert atmosphere

solubility 

DMSO (Slightly, Heated, Sonicated), Methanol (Slightly), Water (Slightly)

form 

Solid

color 

Very Dark Red to Very Dark Brown

Water Solubility 

2.86g/L at 20℃

LogP

-0.4 at 20℃

IARC

3 (Vol. 57) 1993

EPA Substance Registry System

C.I. Acid Orange 3 (6373-74-6)

Safety Information

Safety Statements 

24/25

HS Code 

32041200

Hazardous Substances Data

6373-74-6(Hazardous Substances Data)

MSDS

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Acid Orange 3 Usage And Synthesis

Chemical Properties

Orange-yellow powder. Very soluble in cold and hot water, solubility in water is 50g/L (90℃), aqueous solution is yellow. Easily soluble in ethanol, orange-brown color. In concentrated sulfuric acid, it is yellow, after dilution, it turns to dark yellow, with precipitation. When stained with copper ions, the color light is slightly green, and when stained with iron ions, the color light becomes dark.

Uses

Acid Orange 3 (13C6) a labelled version of Acid Orange 3 (A189883), an acid dye used as a hair colouring agent.

Preparation

5-Amino-2-(phenylamino)benzenesulfonic acid and 1-Chloro-2,4-dinitrobenzene?condensation.

Definition

ChEBI: CI Acid Orange 3 is an organic molecular entity.

General Description

Brown to dark brown microcrystalline powder.

Air & Water Reactions

Slightly soluble in water.

Reactivity Profile

Organonitrates range from slight to strong oxidizing agents. If mixed with reducing agents, including hydrides, sulfides and nitrides, they may begin a vigorous reaction that culminates in a detonation. The aromatic nitro compounds may explode in the presence of a base such as sodium hydroxide or potassium hydroxide even in the presence of water or organic solvents. The explosive tendencies of aromatic nitro compounds are increased by the presence of multiple nitro groups. Nitroalkanes are milder oxidizing agents, but still react violently with reducing agents at higher temperature and pressures.

Health Hazard

ACUTE/CHRONIC HAZARDS: When heated to decomposition Acid Orange 3 emits highly toxic fumes of SOx, NOx and Na2O.

Fire Hazard

Flash point data for Acid Orange 3 are not available; however, Acid Orange 3 is probably combustible.

Flammability and Explosibility

Non flammable

Properties and Applications

dark yellow orange. Orange yellow powder, soluble in cold water and hot water easily, 90 ℃ water solubility of 50 g/L, easily soluble in ethanol for orange brown. The strong sulfuric acid dyes for yellow, diluted into dark yellow, have precipitation. The water solution is yellow. Discharge sex is bad, copper ions in the green light in color shade darker iron ions. Benzene product used for wool, polyamide fiber and silk dyeing and leather shading, mainly used for dyeing nylon, can be used separately, but also as a component colors used to spell color.

Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
		Fading	Stain		Fading	Stain	Fading	Stain
ISO	5-6	1	2	3	1	1	2	3
AATCC	5-6	1-2	1-2	3	1	1	2-3	2-3

Acid Orange 3(6373-74-6)Related Product Information

• Quinoline Yellow
• Trisodium phosphate
• Sodium hydroxide
• Sodium chloride
• Sodium diphenylamine-4-sulfonate
• Sodium bicarbonate
• Sodium alginate
• Folic acid
• Ethyl 2-(Chlorosulfonyl)acetate
• Sodium citrate
• Sodium 3-nitrobenzenesulphonate
• Molasses
• Sulfamic acid monosodium salt
• Sodium acetate
• Diclofenac sodium
• Sodium benzoate
• Methyl Orange
• Citric acid