Acid Dyes
Acid Orange
Bright orange acid dye for paper and selected industrial applications.
Overview
Acid Orange is an acid dye providing bright orange coloration. The strongest public match for the product name in this catalogue is Acid Orange 7, also known as Orange II / 2-naphthol orange. As Orange II, it is a well-documented mono-azo dye formed by coupling β-naphthol with diazotised sulfanilic acid, and its acid-base tautomerism is part of what gives it a clean, stable orange in solution.
Colour Reference
Appearance, dilution, and application
Appearance
Dilution
Application
Applications
Where it is used
- Paper and paper products
- Selected industrial coloration
- Leather and other compatible substrates
Benefits
Why mills choose it
Bright orange shade
Water-soluble acid dye
Suitable for paper coloration
Strong visual coloration
Identity & Data
Technical data
Typical values. For a full technical datasheet or safety data sheet, get in touch.
- C.I. Name
- C.I. Acid Orange 7
- C.I. Number
- 15510
- CAS Number
- 633-96-5
- Molecular Formula
- C16H11N2NaO4S
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