C.I. 14720 Chemical Properties

Melting point:

254-257°C

Boiling point:

907.49℃[at 101 325 Pa]

Flash point:

>225℃

storage temp. 

Amber Vial, Refrigerator

solubility 

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

Colour Index 

14720

form 

Solid

color 

Red brown

Odor

Odorless

Water Solubility 

Soluble in water

Stability:

Light sensitive

LogP

-0.001

IARC

3 (Vol. 8, Sup 7) 1987

EPA Substance Registry System

C.I. Acid Red 14, disodium salt (3567-69-9)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-37/39

WGK Germany 

2

RTECS 

QK1925000

TSCA 

Yes

HS Code 

2942.00.5000

Hazardous Substances Data

3567-69-9(Hazardous Substances Data)

Toxicity

LD50 oral in rat: > 10gm/kg

MSDS

• Language:English Provider:C.I. 14720
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

C.I. 14720 Usage And Synthesis

Uses

Azo Rubine is an synthetic red food dye and is used for the purposes where food is heat-treated after fermentation.

Preparation

4-Aminonaphthalene-1-sulfonic acid diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid.

Definition

ChEBI: Carmoisine is an organic molecular entity.

General Description

Reddish-brown crystals or dark maroon powder.

Air & Water Reactions

Can be explosive as a dust in air at certain concentrations. Moderately soluble in water.

Reactivity Profile

C.I. 14720 may form toxic gases with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. May form flammable gases with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.

Health Hazard

ACUTE/CHRONIC HAZARDS: When heated to decomposition C.I. 14720 emits very toxic fumes of sulfur oxides, nitrogen oxides and Na2O.

Fire Hazard

Flash point data for C.I. 14720 are not available; however, C.I. 14720 is probably combustible.

Flammability and Explosibility

Not classified

Properties and Applications

blue-ray red. Dark red powder, soluble in water, but soluble in ethanol red solution, slightly soluble in acetone. In a purple color of sulfuric acid, and it will dilute to product red precipitate; Nitric acid in deep red, turn red after yellow. Its water solution and strong hydrochloric acid red; Add sodium hydroxide fluid shows red orange brown. Dyeing copper ions in slightly dark color. Good levelness. Mainly used in strong acid dye in bath dyeing wool, wool fabrics can be in silk fabric, polyamide fiber and printing. The Barium salt can be used as organic pigment use. Also can be used in the manufacture color amylum, ink and used for leather, paper, soap, wood, electrical-controlled silver, medicine, biology and cosmetics shading.

Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
		Fading	Stain		Fading	Stain	Fading	Stain
ISO	3	2	5	3	1	4-5	2	1
AATCC	3	3	3	2-3	1	1-2	3-4	3-4

C.I. 14720(3567-69-9)Related Product Information

• 1-Naphthol-4-sulfonic acid
• 1-Naphthalenesulfonic acid
• Sodium 1-naphthalenesulfonate
• Sulfanilic acid
• 2-Naphthylamine
• C.I. 14720
• 2-Aminophenol-4-sulfonic acid
• Naphthionic acid
• 4-AMINO-1-NAPHTHALENESULFONIC ACID SODIUM SALT
• 4-Aminothiophenol
• 4-Amino-benzenesulfonic acid monosodium salt
• 1-NAPHTHOL-4-SULFONIC ACID SODIUM SALT
• P-PHENYLAZOBENZENESULFONIC ACID
• 4-HYDROXYBENZENESULFONIC ACID SODIUM SALT HYDRATE
• Sodium 4-amino-1-naphthalenesulfonate
• 1-NAPHTHALENETHIOL
• Naphthalene-1-sulfonic acid hydrate, 98%
• PHENOLSULFONIC ACID