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Eriochrome Black T CAS 1787-61-7


  • CAS;1787-61-7
  • Formulae hypotheticae:C20H12N3NaO7S
  • Pondus hypotheticum:461.38
  • EINECS:217-250-3
  • Synonyma:1-naphthalenesulfonicacid,3-hydroxy-4-((1-hydroxy-2-naphthalenyl)azo)-7-nitro; 1-naphthalenesulfonicacid,3-hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-7-nitro; 1-NaphthalenesulfonChemicalbookicacid,3-hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-7-nitro-,monosodiumsalt
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    Quid est Eriochrome Black T CAS 1787-61-7?

    Eriochrome Black T indicator, mordye niger 11, alias Elai Chrome niger T denotatur, nomen scientificum 1-(1-hydroxy-2-naphthol azo) -6-nitro-2-naphthol - 4-sulfonato-salis sodium, est. denotat comprehensum ad determinationem barii, cadmium, indium, magnesium, manganesium, calcium, plumbum, scandium, strontium, zincum, zirconium, etc. Determinatio totalis duritiae exempli aquae (totalis calcii et magnesii) adhibetur etiam ut index chromii chemicalis libri T denotat. Cum chroma nigrum T indicari paravimus secundum Codicis sanitary ad Bibendum Aquam MMI, invenimus in 9.1.3.6, solum 95% ethanolum adhibitum ad solutionem chromae nigrae T indicatorum et ad 100ml diluendum, ita ut indicator consecutus erat obscure purpura rubra cum aqua specimen et solutionem confirmationis aquae purae respective, et color titrationis punctum extremum mutari non potuit.

    Specification

    Item Specification
    PH 3.7 (10g/l, H2O, 20℃)
    Color index 14645
    Acidum coefficiens (pKa) pK1:6.3;pK2:11.55 (25°C)
    Densitas 1.109 g/mL ad 25 °C
    Merck 14,3667
    BRN 4121162

    Applicationem

    Eriochrome Niger T praecipue ad tingendas et imprimendas lanas fabricas adhibetur, adhiberi potest etiam ad texendi colorem sericum, nylon et alia textilia, adhiberi potest etiam ad tingendas furcas, producta pura ut index adhiberi potest. Eriochrome Niger T adhiberi potest ad aquarum duritiem determinandam, indicibus complexis, calcii determinatio, magnesium, barium, latium, manganesum, plumbum, scandium, strontium, zincum, zirconium, ad tingendum top, lanam et omnia genera. lanas quoque adhiberi potest ad tingendas nylon.

    sarcina

    25kgs/orum, 9tons/20'continens
    25kgs/pera, 20tons/20'continens

    Eriochrome Black T-pack

    Eriochrome Black T CAS 1787-61-7

    Eriochrome Black T-Packing

    Eriochrome Black T CAS 1787-61-7


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