Basic blue 26
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Basic blue 26
C.I.Basic Blue 26
C.I.44045
CAS:2580-56-5
Synonymous names：Basazol Blue 57L (DYS);Basonyl Blue 644 (DYS);Dycosbasic Victoria Blue B (SHC);Flexo Blue 640 (DYS);Flexo Blue 641 (DYS);Neptune Blue 643 oleat (DYS);Victoria Blue B (Amar,STIE,NIEC,WUXI,LIN,JIAN,SLIE);Victoria Blue B353 (STIE);Victoria Pure Blue B (HEB)
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Description
C.I.Basic Blue 26
C.I.44045
CAS:2580-56-5
Synonymous names:Basazol Blue 57L (DYS);Basonyl Blue 644 (DYS);Dycosbasic Victoria Blue B (SHC);Flexo Blue 640 (DYS);Flexo Blue 641 (DYS);Neptune Blue 643 oleat (DYS);Victoria Blue B (Amar,STIE,NIEC,WUXI,LIN,JIAN,SLIE);Victoria Blue B353 (STIE);Victoria Pure Blue B (HEB)
Physicochemical Properties: Deep purple or grayish-green powder. In concentrated sulfuric acid, appears reddish-brown, turning yellow-green then blue upon dilution. Aqueous solutions yield deep reddish-brown precipitates with sodium hydroxide. Soluble in cold and hot water (blue), and in ethanol (blue).
Applications: For silk and wool (lightfastness: 1–2). For tannin-mordanted cotton (lightfastness: 1). Also for typewriter ribbons, carbon paper, paper, bamboo, wood, and manufacturing color lakes and solvent dyes.
