Direct red 23 Quotation
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Direct red 23 Quotation

Direct red 23 Quotation is a kind of direct dyes. Direct dyes are dyes that can be heated and boiled in neutral and weak bond phase media without the help of mordants. According to their application, they mainly include ordinary direct dyes, Direct light fast dyes and direct azo dyes. Milestone Industrial Co. Ltd. specializes in the production of direct dyes. Direct red 23 Quotation has 200%, 150% and 100% strength. Product specifications and packaging can be customized. Samples and samples can be provided to provide you with the most professional pre-sales and after-sales. service.

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Product Description

Direct red 23 Quotation

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Direct red 23 Quotation is a kind of direct dyes. Direct dyes are dyes that can be heated and boiled in neutral and weak bond phase media without the help of mordants. According to their application, they mainly include ordinary direct dyes, Direct light fast dyes and direct azo dyes. Milestone Industrial Co. Ltd. specializes in the production of direct dyes. Direct red 23 Quotation has 200%, 150% and 100% strength. Product specifications and packaging can be customized. Samples and samples can be provided to provide you with the most professional pre-sales and after-sales. service.

         

Other product names: Scarlet 4BS; Direct Scarlet 4BS

CAS Number: 3441-14-3

Molecular formula: C35H27N7O10S2

Molecular weight: 769.7598

EINECS number: 222-348-4


Direct red 23 Quotation chemical properties:


  • Direct red 23 Quotation is purple-red powder.
  • Direct red 23 Quotation is moderately water-soluble and bright red when soluble in water. Its aqueous solution adds dilute sulfuric acid to turn light blue. Adding concentrated hydrochloric acid produces a wine-red precipitate. Adding concentrated alkali turns red to orange brown.
  • Direct red 23 Quotation is slightly soluble in ethanol and orange in color, but insoluble in acetone.
  • Direct red 23 Quotation is bright red to magenta in concentrated Chemicalbook sulfuric acid, and turns brownish orange after dilution;
  • Direct red 23 Quotation produces orange-yellow precipitation in concentrated nitric acid; it is insoluble in concentrated lye; it is bright red when dissolved in concentrated ammonia.
  • Direct red 23 Quotation will darken when it meets copper ions, but will not change when it meets iron ions.


The purpose of Direct red 23 Quotation:


  • Direct red 23 Quotation can be used for dyeing and printing of cotton and viscose fabrics, but it is mostly used for viscose fabrics. Cotton fabrics are rarely used, and are yellowish red. Good dye uptake, poor dye migration and sensitivity to salt. After dyeing, the wet fastness is still unsatisfactory after treatment with fixing agent Y.
  • It can be used alone for dyeing scarlet red and Akane Chemicalbook red, or it can be used for dyeing yellow, orange, red, brown and other colors.
  • It can be used to dye silk, wool, linen and other fabrics and silk fabrics.



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