Sudan I Chemical Properties

Melting point:

131-133 °C

Boiling point:

391.35°C (rough estimate)

Density 

1.1077 (rough estimate)

vapor pressure 

0Pa at 25℃

refractive index 

1.5800 (estimate)

storage temp. 

Sealed in dry,Room Temperature

solubility 

DMSO (Slightly), Ethyl Acetate (Slightly)

form 

Powder

pka

13.50±0.40(Predicted)

Colour Index 

12055

color 

Orange to red or brown

Water Solubility 

0.5 g/L (30 ºC)

Stability:

Incompatible with strong oxidizing agents.

LogP

5.51

CAS DataBase Reference

842-07-9(CAS DataBase Reference)

NIST Chemistry Reference

2-Naphthalenol, 1-(phenylazo)-(842-07-9)

IARC

3 (Vol. 8, Sup 7) 1987

EPA Substance Registry System

C.I. Solvent Yellow 14 (842-07-9)

Safety Information

Hazard Codes 

Xn,Xi

Risk Statements 

68-53-43-40-36/37/38

Safety Statements 

61-46-36/37-22-36-26

WGK Germany 

2

RTECS 

QL4900000

HS Code 

32129000

Hazardous Substances Data

842-07-9(Hazardous Substances Data)

Toxicity

mmo-sat 300 ng/plate SCIEAS 236,933,87

MSDS

• Language:English Provider:C.I. 12055
• Language:English Provider:ACROS

Sudan I Usage And Synthesis

Chemical Properties

orange-red powder

Uses

A food azo-dye, a liver and urinary bladder carcinogen for rodents and a potent contact allergen and sensitizer for humans. Genotoxic and carcinogenic. Dyes and metabolites, Environmental Testing.

Definition

ChEBI: Sudan I is an azo compound. It has a role as a dye. It is functionally related to a 2-naphthol.

Preparation

Aniline diazo, and Naphthalen-2-ol?coupling.

General Description

Dark reddish-yellow leaflets or orange powder. Slight odor.

Air & Water Reactions

Azo dyes can be explosive when suspended in air at certain concentrations. Insoluble in water.

Reactivity Profile

Sudan I is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class 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. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides. Sudan I is incompatible with strong oxidizing agents and strong acids .

Fire Hazard

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

Flammability and Explosibility

Not classified

Safety Profile

Experimental reproductive effects. Questionable carcinogen with experimental carcinogenic, neoplastigenic, and tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx. Used for coloring hydrocarbon solvents, oils, fats, waxes, shoe and floor polishes, and gasoline

Properties and Applications

Red light yellow. Melting point 134 ℃. Soluble in ethanol (for orange), acetone and benzene, insoluble in water. The strong sulfuric acid for product red, diluted for orange, precipitation; In the hot strong hydrochloric acid solution for red, HCL after cooling for the crystallization variegated dark green, but released a few separate hydrogen: and C.I. Solvent Yellow and the same chemical structure. Used for dyeing and printing of polyester fibers.

Standard	Ironing Fastness		Light Fastness	Persperation Fastness		Washing Fastness
	Fading	Stain		Fading	Stain	Fading	Stain
ISO			4-5			3	3-4

Purification Methods

Crystallise the dye from EtOH. It forms Cu and Ni salts. [Beilstein 16 H 162, 16 I 254, 16 II 70, 16 III 129, 16 IV 228.]

Sudan I(842-07-9)Related Product Information

• Solvent Yellow 114
• 2-Naphthol
• Terbinafine Hydrochloride
• Phosphorus
• 1,8-Bis(phenylthio)-9,10-anthracenedione
• Phenmedipham
• 1,1'-Bi-2-naphthol
• Solvent Yellow 2
• 1-Phenyl-2-nitropropene
• 1-PHENYL-2-PROPANOL
• Solvent Violet 13
• 1-Naphthol
• Sudan III (CI x 26100),SUDAN,SUDAN G,SUDAN 3,SUDAN III,SUDAN III STAIN,FAT SOLUBLE SUDAN
• SOLVENT OIL
• Sudan IV (CI x 26105),SUDAN 4,SUDAN IV
• Phenylacetone
• XYLIDYL BLUE I SODIUM SALT
• ACID RED 66