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Reactive Black KN-B

CAS NO.： 17095-24-8

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Specification： 98%

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Lead Time： 14-30 days

Max Capacity： -

Packing： 25KG/Fibre Drum

Product Detail

Properties

Reactive Black KN-B

English Name: Reactive Black KN-B

CAS No.: 17095-24-8

Molecular formula: C26H26N5NaO19S6

Molecular weight: 927.86

EINECS No.: 241-164-5

Melting point: > 300 ° C (lit.)

Density: 1.21 g / cm3 at 20 ° C

Application: Reactive Black KN-B can be used for dyeing cotton, viscose fiber and fabric, with dark color. It can also dye dark blue with reactive violet, reactive blue, etc. It is used for direct printing of cotton and viscose fabrics, with less staining on the white ground. It can match with reactive brilliant red m-8b in Dark Navy, with good fastness. It can also be used for nylon dyeing.

Properties

Reactive black KN-B can be used for dyeing cotton, viscose fiber and fabric, with dark color. It can also dye dark blue with reactive violet, reactive blue, etc. It is used for direct printing of cotton and viscose fabrics, with less staining on the white ground. It can match with reactive brilliant red m-8b in Dark Navy, with good fastness. It can also be used for nylon dyeing.

CAS No.

17095-24-8

Formula

C26H21N5Na4O19S6

Molecular Mass

991.81600

Exact Mass

990.87500

PSA

461.51000

Logp

8.33360

IUPAC

tetrasodium;4-amino-5-hydroxy-3,6-bis[[4-(2-sulfonatooxyethylsulfonyl)phenyl]diazenyl]naphthalene-2,7-disulfonate

Matter Classification

organic

Category

Melting Point

>300 °C(lit.)

Density

1.21 g/cm3 at 20 °C

Appearance

Black powder. The aqueous solution is blue and black. The color remains unchanged after adding 1mol / L sodium hydroxide. After adding insurance powder and warming it to yellowish brown, the color cannot be restored to the original color after adding sodium perborate. It is blue-green in concentrated sulfuric acid and bluish gray after dilution; It is brown in concentrated nitric acid and light brown after dilution.

HS Code

32041600

UN No.

DG-Class

Risk Code

42-42/43

Safety Label

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Reactive Black KN-B