Vat Yellow 4 Chemical Properties

Boiling point:

429.48°C (rough estimate)

Density 

1.1459 (rough estimate)

refractive index 

1.4891 (estimate)

Stability:

Stable. Combustible. Incompatible with strong oxidizing agents.

CAS DataBase Reference

128-66-5

IARC

3 (Vol. 48) 1990

EPA Substance Registry System

C.I. Vat Yellow 4 (128-66-5)

Vat Yellow 4 Usage And Synthesis

Chemical Properties

viscous orange liquid

General Description

Viscous orange liquid. Used for coloring of cotton, wool and cellulose acetate.

Air & Water Reactions

Water soluble.

Reactivity Profile

Vat Yellow 4 reacts very readily with reducing agents to give a colorless or nearly colorless product. Subsequent oxidation then restores the color.

Health Hazard

ACUTE/CHRONIC HAZARDS: When heated to decomposition Vat Yellow 4 emits acrid smoke and irritating fumes.

Fire Hazard

Vat Yellow 4 is probably combustible.

Vat Yellow 4(128-66-5)Related Product Information

• 4-Acetylbiphenyl
• Vat Orange 1
• 4-METHYL-1-ACETONAPHTHONE
• 1-NAPHTHYL PHENYL KETONE
• 1,5-DIBENZOYLNAPHTHALENE
• Benzanthrone
• 4-METHYL-1-NAPHTHALDEHYDE
• 4'-METHYL-BIPHENYL-2-CARBALDEHYDE
• 2'-METHYL-BIPHENYL-4-CARBALDEHYDE
• 4-Benzoylbiphenyl
• 1'-Acetonaphthone
• 1,5-DIMETHYLNAPHTHALENE
• 1-PHENYLNAPHTHALENE
• 1,4-DIMETHYLNAPHTHALENE
• 2-PHENYLBENZOYL METHIDE
• 1,4,5-TRIMETHYLNAPHTHALENE
• 1-(2'-METHYL[1,1'-BIPHENYL]-4-YL)ETHANONE
• 4-BENZYLBIPHENYL