Basic Yellow 21 Chemical Properties

Density 

1.16[at 20℃]

Water Solubility 

21g/L at 20℃

LogP

1 at 25℃

EPA Substance Registry System

1H-Indolium, 1-[(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)ethylidene]-2,3-dihydro-2-methyl-, chloride (6359-50-8)

Basic Yellow 21 Usage And Synthesis

Chemical Properties

Easily soluble in water is greenish yellow. Dye powder in concentrated sulfuric acid is light orange, diluted greenish yellow. The color and luster of the dye remain unchanged when it meets copper ions, and the color and luster change slightly when it meets iron ions.

Preparation

2-(1,3,3-Trimethylindolin-2-yl)acetaldehyde And 2-Methyl-2H-indazole??in the presence of phosphorus oxychloride of condensation, and then quaternized..

Flammability and Explosibility

Not classified

Properties and Applications

colourful green light yellow. Bright yellow powder. Soluble in water. In the strong sulfuric acid of bright orange, diluted into green light yellow. In 120 ℃ high temperature dyeing, colored light unchanged. Copper ions in dyeing color shade unchanged, encounter iron ion colour and lustre micro have change. Compatibility value is 2.5, the f value is 0.29. Solubility of 40 g/L, effected by temperature is very small. Mainly used in acrylic dyeing, also can be in acrylic fiber directly on printing.

Basic Yellow 21(6359-50-8)Related Product Information

• TERT-BUTYL ISOCYANIDE
• Benzyl isocyanide
• Cupric acetylacetonate
• TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)DYSPROSIUM(III)
• SALCOMINE
• 2,4-PENTANEDIONE, SILVER DERIVATIVE
• Tris(2,4-pentanedionato)chroMiuM(III)
• METHYL ISOCYANOACETATE
• Aluminum acetylacetonate
• DICHLORO(ETHYLENEDIAMINE)PLATINUM(II)
• 1,1,3,3-TETRAMETHYLBUTYL ISOCYANIDE
• Ferric acetylacetonate
• PHENYLSELENOL
• COBALT(II) ACETYLACETONATE
• Ethyl isocyanoacetate
• Tosylmethyl isocyanide
• TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)EUROPIUM(III)
• N-BUTYLISOCYANIDE