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必应染料-您身边的染料专家

Direct Blue 145

Name:C.I.Direct Blue 145,C.I.27895

Molecular Structure: Double azo class

C.I.Direct Blue 145,C.I.27895,CAS 6227-16-3,706.66,C30H24N6Na2O8S2,Diazo Navy Blue MB

C.I.Direct Blue 145,C.I.27895,CAS 6227-16-3,706.66,C30H24N6Na2O8S2,Diazo Navy Blue MB

Molecular Formula:C30H24N6Na2O8S2

Molecular Weight: 706.66

CAS Registry Number:6227-16-3

Manufacturing Methods : 2-Amino-5-nitrobenzenesulfonic acid diazo, and 2-Amino-4-methylanisole coupling, product to diazo, in alkaline conditions and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling, then use the method will be reduced to amino nitro.

Properties and Applications: blue. Soluble in water for purple, slightly soluble in alcohol. The strong sulfuric acid for blue, purple precipitation after diluted. The dye solution to join strong hydrochloric acid have blue purple precipitation; Add thick sodium hydroxide solution have dark purple precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 5 5 4 3 4

List of Suppliers:

Diazo Navy Blue MB( Industria Chimica Dott  )


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