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Contents

   



(Top)
 


1 Preparation and use  





2 References  





3 External links  














Acid red 88






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From Wikipedia, the free encyclopedia
 


Acid red 88
Kekulé, skeletal formula of acid red 88
Ball-and-stick model of the component ions of acid red 88
Names
IUPAC name

Sodium 4-(2-hydroxy-1-naphthalenylazo)-naphthalenesulfonate

Other names

Fast Red A

2-Naphthol Red
Roccelline
Solid Red A

Toyo roccelline

Identifiers

CAS Number

3D model (JSmol)

ChemSpider
ECHA InfoCard 100.015.238 Edit this at Wikidata
EC Number
  • 216-760-3
MeSH Fast+red+S

PubChem CID

  • 23669381 (Z)-diazen
  • 23670762 (E)-diazen
  • RTECS number
    • QK2420000
    UNII

    CompTox Dashboard (EPA)

    • InChI=1S/C20H14N2O4S.Na/c23-18-11-9-13-5-1-2-6-14(13)20(18)22-21-17-10-12-19(27(24,25)26)16-8-4-3-7-15(16)17;/h1-12,20H,(H,24,25,26);/q;+1/p-1 ☒N

      Key: IVEHGZAIVWEKHA-UHFFFAOYSA-N ☒N

    • [Na+].O=S(=O)([O-])c3ccc(N=Nc1c(O)ccc2ccccc12)c4ccccc34

    Properties

    Chemical formula

    C20H13N2NaO4S
    Molar mass 400.38 g·mol−1
    Appearance Vivid, dark red, opaque, vitreous solid
    Melting point 280 °C (536 °F; 553 K)

    Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

    ☒N verify (what is checkY☒N ?)

    Infobox references

    Acid red 88 is an azo dye. Due to its intense colour, solid samples appear almost black. It is used to dye cotton textiles red.[1] A closely related acid dyeisAcid Red 13.

    Preparation and use

    [edit]

    It can be obtained by azo couplingofnaphthionic acid and 2-naphthol. Instead of crystallising, it vitrifies when cooled or salted out of the solution.

    This compound is used in the textile industry as a dye.[2] It can also be used for research in photocatalysis (as degradation object).[3]

    References

    [edit]
    1. ^ Hunger, Klaus; Mischke, Peter; Rieper, Wolfgang; Raue, Roderich; Kunde, Klaus; Engel, Aloys (2005). "Azo Dyes". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a03_245. ISBN 3527306730.
  • ^ Song, Ya-Li; Li, Ji-Tai; Chen, Hua (2009). "Degradation of C.I. Acid Red 88 aqueous solution by combination of Fenton's reagent and ultrasound irradiation". J. Chem. Technol. Biotechnol. 84 (4): 578–583. doi:10.1002/jctb.2083.
  • ^ "Acid red 88 | CAS 1658-56-6 | Santa Cruz Biotech". Archived from the original on 2015-07-12. Retrieved 2011-04-24.
  • [edit]
    Retrieved from "https://en.wikipedia.org/w/index.php?title=Acid_red_88&oldid=1106307807"

    Categories: 
    Azo dyes
    2-Naphthols
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    This page was last edited on 24 August 2022, at 01:36 (UTC).

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