Fluorescent Brightener 71 (CAS 16090-02-1): Comprehensive User Guide
Table of Contents
1. Product Overview & Technical Specifications
| Parameter | Fluorescent Brightener 71 | Standard Alternatives |
|---|---|---|
| CAS Number | 16090-02-1 | Varies by type |
| Molecular Formula | C40H38N12Na2O8S2 | Simpler structures |
| Molecular Weight | 924.91 g/mol | Typically 300-600 g/mol |
| Appearance | Yellow-green powder | White/off-white powders |
| Solubility | Water-soluble | Variable solubility |
| Thermal Stability | Stable up to 270°C | 200-250°C range |
Available in commercial quantities (5g-500kg) with 65-99% purity grades. Superior photostability compared to conventional brighteners like OB or 85 series.
2. Key Applications & Functional Advantages
Primary Applications:
- Textile Manufacturing: Optimized for cotton, polyester-cotton blends, and synthetic fibers
- Paper Production: Enhances brightness in premium-grade papers
- Detergent Formulations: Maintains fabric whiteness through wash cycles
Performance Benefits:
- UV-activated fluorescence efficiency: 92-95%
- Low dosage requirement (0.01-0.05% wt/wt)
- pH stability range: 4-11
- Excellent wash-fastness (5+ industrial washes)
3. Industry Use Cases
Case A: Textile Finishing
Applied in post-dyeing processes for blended fabrics at 0.03% concentration, achieving 15% whiteness improvement versus traditional agents.
Case B: Laundry Detergents
Formulated in premium detergents at 0.1% load, demonstrating 20% better brightness retention after 50 washes compared to OB-based formulas.
4. Client Success Stories
Client 1: Premium Textile Manufacturer
- Challenge: Yellowing in polyester-cotton blends
- Solution: 0.04% FB71 in final rinse cycle
- Result: 18% whiteness increase, 30% cost reduction vs. previous brightener
Client 2: Industrial Paper Producer
- Challenge: Inconsistent brightness in recycled paper
- Solution: 0.02% FB71 in pulp mixture
- Result: ISO brightness improved from 82% to 89%
5. Technical Support & Inquiry
Our technical team provides formulation guidance, compatibility testing, and sample support. For pricing, SDS, or custom solutions:
| Contact Method | Details |
|---|---|
| info@vivalr.com | |
| Phone | (86) 15866781826 |
Request free technical consultation or laboratory sample testing today.



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