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    Aniline 2:5 Disulphonic Acid,  CAS No. 98 - 44 - 2

    Aniline 2:5 Disulphonic Acid, CAS No. 98 - 44 - 2

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    Synonyms: 2-amino 1,4-benzenedisulphonic acid
    2,5 disulfoaniline, 4-sulphometanilic acid

    Empirical Formula: C6H7N S2O6

    Cas no.: 98 - 44 - 2

    Purity (Amine value of Free acid): 80 % Minimum.

    Purity (Amine value of Sodium Salt): 87 % Minimum.

    Molecular Weight (As Free acid): 253 gm/mol.

    Molecular Weight (As Sodium Salt): 275.5 gm/mol.

    Appearance: Moist White Powder

    Insoluble: 0.15 % Maximum.

    Free Acid Content: 4 % Maximum.

    Moisture Content (By K.F. Method): 5 % Approx.

    Metanilic Acid Content: < 0.5 %

    Isometric Impurities: Nil

    Basis of sale: Real Content (100% Basis) on M.W. 253

    Packing: 25 Kgs. / 50 Kgs. HDPE woven bags with PE liner / Jumbo Bags

    Applications: Intermediate for Optical Brightening Agents and for dyes like Direct Blue 70, 78, 82, 83, Direct
    Black 77, Direct Green 20, Direct Red 103, Film Orange P (by), Mordant Azol Printing Bordeaux B, Pigment Saturn Yellow 5 GL etc.


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