Orange acid 33 cas 6507-77-3

Table of Contents

• Product Overview
• Technical Specifications & Comparative Analysis
• Industrial Applications
• Usage Guidelines
• Case Studies
• Contact for Technical Consultation

Orange Acid 33 (CAS 6507-77-3) Product Overview

Orange Acid 33 (C₁₀H₅INa₂O₇S₂), a high-purity iodinated naphthalene sulfonic acid derivative, is a specialized acid dye with enhanced lightfastness properties. Key identifiers:

• CAS Number: 6507-77-3
• Molecular Weight: 544.15 g/mol
• Appearance: Orange-red crystalline powder
• Solubility: 120 g/L in water (20°C)
• pH Range: Stable in 2.5-6.5 pH solutions

Technical Specifications & Comparative Analysis

Industrial Applications

Primary Use Cases

• Textile Dyeing: Optimal for wool/nylon at 85-95°C with 2-4% dye concentration
• Paper Coloring: pH-sensitive coating additive for premium packaging
• Ink Formulations: Alcohol-soluble variant for security printing

Usage Guidelines

Textile Application Protocol

1. Prepare dye bath at 40°C with 1:20 liquor ratio
2. Adjust pH to 3.5-4.0 using acetic acid
3. Maintain 90°C for 45 minutes
4. Rinse with neutral soap solution

Implementation Case Studies

Case 1: Textile Manufacturer (Guangzhou, China)

• Challenge: Achieve ISO 105-B02 lightfastness ≥5 for outdoor fabrics
• Solution: 3.8% Orange Acid 33 with UV absorber
• Result: 600% ROI through premium product pricing

Case 2: Security Printing House (Stuttgart, Germany)

• Requirement: Chemical-resistant banknote overprint
• Implementation: Ethanol-based ink formulation
• Verification: Passed ECB durability tests

Technical Consultation & Ordering

Contact our application engineers for formulation support:

• Email: info@vivalr.com
• Tel: (86) 15866781826

Request technical documents:

• SDS (Safety Data Sheet)
• REACH Compliance Certificate
• Batch Analysis Report