Mainly produces a series of intermediate products based on naphthalene and benzene

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                  6-Nitro-1,2,4 Diazo Acid (6-Nitro-1-Diazo-2-Naphthol-4-Sulphonic Acid)
                  Synonyms 6-Nitro-1,2,4 Diazo Acid (6-Nitro-1-Diazo-2-Naphthol-4-Sulphonic Acid)
                  Stuctural formular
                  CAS no 5366-84-7
                  Molecular weight 295.3
                  Molecular Formula

                  C10H6N3O6S

                  Descriptions This Nitro derivative is also considered to exist in quinone-diazide form (4-Diazo-3,4-Dhydro-7- Nitro-3-Oxo Naphthalene-l-Sulphonic acid). It is more important component for mettalised & mettallisable dyes than 1,2,4 acid diazo
                  Specification
                  Index
                  1st grade
                  2nd grade
                  3rd grade
                  Appearance
                  Yellow to light brown moist material
                  Purity %min.
                  75
                  73
                  70
                  Content by HPLC %min.
                  90
                  88
                  87
                  Insolubles%max.
                  0.1
                  0.1
                  0.2
                  Free acid (H2SO4) %max.
                  4
                  5
                  6
                  Fe mg/kg max.
                  30
                  30
                  30
                  Packing In HDPE woven sacks with poly liner or in M.S. drums of 40kgs to 170kgs.

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