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Basic Violet 10

Product Name: Basic Violet 10

C.I.NO.: 45170

CAS No.: 81-88-9

Molecular Formula:C28H31ClN2O3

Molecular Weight: 479.01

Relative Name:

Rhodamine B;Brilliant Pink B, Rhodamine O

Shade: red light purple powder,Light green flash small crystalline powder.

Basic Violet 10 Dyeing Fastness(grade)

Fiber

Silk

Item

Sample change

white silk stain

white cotton stain

Light fastness

2~3

_

Flooding

4

1

2~3

Soaping(40℃)

3~4

1~2

3

Perspiratio

4

1

3

Rubbing

dry

4

wet

2~3

Ironing

4~5

4~5

Sulfuric acid resistant

4

Acetate resistant

4

Alkali resistant

3~4

Basic Violet 10 Properties and Applications:

The appearance is bright green glitter small crystalline powder. It is soluble in water and alcohol, all of which are blue-red and accompanied by strong fluorescence. It is slightly soluble in acetone and soluble in ethylene glycol ether. The dye is yellowish brown in concentrated sulfuric acid. It has strong green fluorescence, which turns into a scarlet after dilution, gradually turns blue red to orange; it is golden yellow in concentrated nitric acid. Its aqueous solution is added with sodium hydroxide as rose red, and there is flocculated precipitation after heating; Hydrochloric acid is separated by fine green crystals.

The amount of alkaline rose B in the dye bath at pH 5.5 is lower than the pH 3.2, because alkaline rose B is an amphoteric dye with both a carboxylic acid group and a tertiary amino group in the molecular structure. When the value is high, the ionization tendency of the carboxylic acid group in the dye molecule increases, the ionization tendency of the tertiary amino group decreases, and the ionized carboxylic acid group in the dye molecule and the acidic group ionized in the acrylic macromolecule are anionic. Mutual exclusion; when the pH of the medium is low, the situation is reversed, and thus the amount of dyeing is increased.

Application

The color light is stable in the range of pH 2.5~5.5; when the pH value is below 2.5, the color light changes. If the dye bath is required to be stable, A dilute solution of sulfuric acid or formic acid can be used.

Package, 25KG/DRUM, CARTON BOX, BAG



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