CHLORANTINE FAST RED 5B Chemical Properties

Melting point:

240°C (dec.) (lit.)

Density 

1.507[at 20℃]

vapor pressure 

0Pa at 25℃

Colour Index 

28160

Water Solubility 

4.71g/L at 20℃

LogP

-2.05 at 20℃

EPA Substance Registry System

C.I. Direct Red 81 disodium salt (2610-11-9)

Safety Information

WGK Germany 

3

RTECS 

QK1370000

CHLORANTINE FAST RED 5B Usage And Synthesis

Uses

Chlorantine Fast Red 5B is a direct dye used in cosmetics, hair dyes and in the textile industry as a colourant.

Definition

ChEBI: An organic sodium salt resulting from the formal condensation of Sirius red 4B (acid form) with two equivalents of sodium hydroxide. Used as the plasma stain in some trichrome staining methods.

Preparation

4-((4-Aminophenyl)diazenyl)benzenesulfonic acid?diazo, and 7-Benzamido-4-hydroxynaphthalene-2-sulfonic acid coupling.

Flammability and Explosibility

Non flammable

Biochem/physiol Actions

Bacterial consortium NBNJ6 has an ability to decolorize direct red 81 (DR81).

Properties and Applications

red. Red powder. Soluble in water for product red, soluble in soluble fiber element, slightly soluble in alcohol, insoluble in other organic solvents. The strong sulfuric acid dyes for dark blue, shallow orange brown after diluted precipitation; In nitric acid solution for colourful blue, to red light brown. The dye solution to join strong hydrochloric acid for yellow olive brown precipitation; Add thick sodium hydroxide solution has the purple precipitation. 60 ℃ in the solubility of 40 g/L, not sensitive to that fights. For colourful red light. Copper ions in dyeing color slightly turn blue, encounter iron ion colored light basic unchanged. For A class SDC classification. To dead cotton cover the gender is poorer. Cotton neutral and alkaline white are level 5, viscose and minus sex of neutral white for 4 ~ 5 levels. Used for dyeing cotton and viscose, also can be used for paper color.

CHLORANTINE FAST RED 5B(2610-11-9)Related Product Information

• DIRECT RED 80
• Direct Red 23
• Direct Yellow 12
• Direct Blue 86
• DIRECT YELLOW 27
• DIRECT BLUE 15
• DIRECT BLACK 51
• disodium [mu-[[7,7'-iminobis[4-hydroxy-3-[[2-hydroxy-5-(N-methylsulphamoyl)phenyl]azo]naphthalene-2-sulphonato]](6-)]]dicuprate(2-)
• 4-Amino-benzenesulfonic acid monosodium salt
• 4'-Aminoazobenzene-4-sulphonic acid
• 4-Hydroxy-7-methylamino-2-naphthalenesulfonic acid
• B-ACETAMIDONAPHTHALENE
• J acid
• 2-Naphthylamine
• BENZANILIDE
• Naphthalene-2-sulfonic acid
• SODIUM SULFANILATE
• Benzoyl J acid