Tianjin Hitechs Co., Ltd.

H Acid

• Category :

  Intermediates/Dyestuff intermediates

• Synonyms :

  C.I. 35570;1-Naphthol-8-amino-3,6-disulfonic acid;H-Acid;H Acid;1-Amino-8-Hydroxynaphthalene-3,6-Disulphonic Acid;

• CAS NO :

  90-20-0

• EC NO :

  201-975-7

• Molecular Formula :

  C₁₀H₉NO₇S₂

• Molecular Weight :

  319.31

• Main Specifications :

  85.0% min

• InChI :

  InChI=1/C10H9NO7S2/c11-8-3-6(19(13,14)15)1-5-2-7(20(16,17)18)4-9(12)10(5)8/h1-4,12H,11H2,(H,13,14,15)(H,16,17,18)

• Packing :

  25 kgs bag

• Product description :

  H Acid 4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid 1-Amino-8-Hydroxynaphthalene-3,6-Disulphonic Acid Molecular formula: C10H9NO7S2 Molecular weight: 319.31 CAS: 90-20-0 EINECS: 201-975-7 Appearance: white powder Specification: H-acid mono sodium salt (total amino value): 85.0% min H-acid mono sodium salt (HPLC): 97.0% min Chromotropic acid disodium salt:1.5% T-acid disodium salt: 0.5% ω-acid disodium salt: 0.5% Moisture: 5.0% Insoluble: 0.2% Properties: slightly dissolves in water, can dissolve in the sodium carbonate solution.Dilute the H-acid monosodium salt will present blue and red fluorescent light.Reacts with the nitrous acid will turn into the yellow crystalline diazo compound.Reacts with the ferric chloride presents reddish brown;it is red and purple when dissolves in the sodium carbonate solution;dark green in saline solution,apt to dissolves in hot water. Application: Mainly used in the producting acid,direct and reactive dye,also applied in medicine. Packing: 25 kg bag

• Uses :

  Mainly used in the producting acid,direct and reactive dye,also applied in medicine.

• Molecular Structure :