m-Phenylenediamine|1,8-Diaminonaphthalene|1,5-Diaminonaphthalene--Changzhou Chungang Chemical Co., L

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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