HG/T 2992-1982
Direct copper blue 2R (English Version)

Standard No.

HG/T 2992-1982

Language

Chinese, Available in English version

Published By

Professional Standard - Chemical Industry

Status

Be replaced 2005-06

Replace By

HG/T 2992-2004

Latest

HG/T 2992-2004

Scope

The product obtained by coupling 1 molecule of dianisidine dinitrogen compound with 1 molecule of J acid and 1 molecule of 1-naphthol-4-sulfonic acid in an alkaline medium is called direct copper salt blue 2R. Mainly used for dyeing cotton textiles.

HG/T 2992-1982 history

• 2004 HG/T 2992-2004 Direct deep blue C-3R (Direct copper blue 2R)
• 1970 HG/T 2992-1982 Direct copper blue 2R