Acid Blue 9 (CAS 2650-18-2) Technical Guide
Table of Contents
- Product Specifications & Comparative Analysis
- Industrial Applications
- Implementation Scenarios
- Client Success Stories
- Procurement Consultation
Product Specifications & Comparative Analysis
| Parameter | Specification | Grade Comparison |
|---|---|---|
| Chemical Formula | C37H34N2Na2O9S3 | Industrial vs Food Grade |
| Molecular Weight | 792.85 g/mol | ±0.5% Tolerance |
| Appearance | Blue-violet powder | Powder vs Liquid Form |
| Solubility | 50 g/L in water (90°C) | Ethanol Compatibility |
| pH Sensitivity | Color shift at pH >7 | Metal Ion Effects |
Industrial Applications
Textile Processing
Preferred dye for protein fibers with 98% fixation rate on wool substrates. Technical advantages include:
- Superior lightfastness (Grade 4-5)
- Wash resistance up to 60°C
- Low chromium content (<0.1ppm)
Food & Cosmetic Additive
Certified colorant (E Number: E133) with strict impurity controls:
- Heavy metals <10ppm
- Arsenic content <1ppm
- Microbiological compliance: USP <61>
Implementation Scenarios
Textile Batch Dyeing
Standard recipe for wool fabric (1% shade):
- 0.5% Acid Blue 9
- 4% Sodium sulfate
- pH 4.5-5.0 (acetic acid)
- 30:1 Liquor ratio
- 98°C × 60 minutes
Food Coloring Protocol
Maximum permitted levels (EU Regulation):
- Confectionery: 500 mg/kg
- Dairy products: 150 mg/kg
- Beverages: 100 mg/L
Client Success Stories
Textile Manufacturer: Ningbo Yicang International
Implementation Results (2024 Q3):
- 20% dye cost reduction vs traditional options
- 15% improvement in color uniformity
- Zero wastewater violations
Food Additive Supplier: Guangdong Wengjiang Chemical
Certification Milestones:
- FDA 21 CFR 74.3103 compliance
- EU EC 1333/2008 certification
- ISO 9001:2015 quality system
Procurement Consultation
Technical Support Services:
- Custom formulation development
- Regulatory compliance consulting
- Batch-to-batch consistency testing
Contact Technical Experts:
Email: info@vivalr.com
Tel: (86) 15866781826



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