Malachite Green Crystals / Basic Green 4 factory and manufacturers

Malachite Green Crystals / Basic Green 4

short description:

FOB Price:

USD 1-50 / kg

Min.Order Quantity:

100kg

Loading Port:

Any China Port

Payment Terms:

L/C,D/A,D/P,T/T

C.I.NO.:

Basic Green 4

HS CODE:

3204.1300

Appearance:

Shinning Green Crystals

CAS NO.:

569-64-2

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【Malachite Green Crystals Properties】

Malachite Green Crystal the appearance is green crystal with glitter. Easily soluble in water and extremely soluble in ethanol, both appear blue-green.

Malachite Green Crystal is yellow in concentrated sulfuric acid, and turns to dark orange after dilution; it is orange-brown in concentrated nitric acid, and adding sodium hydroxide to its aqueous solution produces a white precipitate with green light.

Malachite Green Crystal is dyed at a high temperature of 120 degrees Celsius, and the color and light remain unchanged. The light fastness of dyeing on acrylic fiber is level 4-5.

Specification
Product Name	Malachite Green Crystal
C.I.No.	Basic Green 4
Appearance	Green Bright Crystals
Shade	Similar To Standard
Strength	100%
Insoluble Matter In Water	≤0.5%
Moisture	≤6%
Fastness
Light	2
Washing	3
Rubbing	Dry	4
	Wet	3-4
Application
Mainly used for dyeing on acrylic, silk, wool, leather, linen, bamboo, wood and paper.

【Malachite Green Crystals Use】

Malachite Green Crystals are used to dye acrylic, silk, wool, diacetate fiber and cotton fiber. Dyed acrylic fiber and diacetate fiber have good light fastness, and other fastnesses (soap washing, perspiration, etc.) are also good. , the fastness of dyed wool, silk, and cotton fibers is slightly worse.

Malachite Green Crystals can also be used to dye leather, paper, hemp, bamboo, etc., and create lakes. Dyeing acrylic yarn with alkaline magenta can produce jet black color with improved fastness.

Malachite Green Crystals is also the standard dye used abroad to determine the saturation value of acrylic fiber and the saturation factor of cationic dyes.

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[Malachite Green Crystals Production Method]
Malachite Green Crystals method uses N, N-dimethylaniline as the main raw material. First, N, N-dimethylaniline and benzaldehyde are condensed in the presence of sulfuric acid, and then oxidized by PChemicalbookbO2. After deleaching with Na2SO4, the product is neutralized with Na2CO3. The dye alcohol color base is then added with oxalic acid to crystallize, filtered and dried to obtain the finished product.