Table of Contents
- Product Overview
- Specifications Comparison
- Key Applications
- Usage Guidelines
- Industry Case Studies
- Contact for Technical Consultation
Sodium 2-Naphthol-7-Sulfonate (CAS 135-55-7) Overview
Chemical Profile
| Parameter | Specification |
|---|---|
| CAS Number | 135-55-7 |
| Molecular Formula | C10H7NaO4S |
| Appearance | White to off-white crystalline powder |
| Purity | ≥98% (HPLC) |
| Solubility | Water soluble (50 mg/mL at 20°C) |
Technical Specifications Comparison
| Vendor | Purity | Moisture Content | Packaging |
|---|---|---|---|
| Manufacturer A | 99% | ≤0.5% | 25kg/drum |
| Manufacturer B | 98.5% | ≤1.2% | 20kg/carton |
| Manufacturer C | 97% | ≤2.0% | 50kg/barrel |
Industrial Applications
Dye Intermediate Applications
Primary use as coupling component in azo dye synthesis for:
- Textile colorants (cotton/polyester blends)
- Leather tanning auxiliaries
- Paper coating pigments
Pharmaceutical Uses
- Intermediate in sulfa drug synthesis
- Analytical reagent for protein detection
Operational Guidelines
Recommended Handling Parameters
| Process Stage | Temperature Range | pH Requirement |
|---|---|---|
| Diazotization | 0-5°C | 1.5-2.5 |
| Coupling Reaction | 5-10°C | 4.0-5.0 |
Documented Case Studies
Case 1: Textile Dye Manufacturer (Hangzhou, China)
- Application: Developed wash-fast red dyes for sportswear
- Result: 23% improvement in color fastness rating
- Consumption: 850kg/month production scale
Case 2: Pharmaceutical Intermediate Supplier (Mumbai, India)
- Application: Sulfonamide drug intermediate synthesis
- Result: 99.2% purity achieved in final API
- Batch Size: 500-800kg per production run
Technical Consultation & Ordering
For formulation support or bulk pricing:
| Contact Method | Details |
|---|---|
| info@vivalr.com | |
| Phone | (86) 15866781826 |
| Lead Time | 2-3 weeks for sample requests |
Request SDS documentation or specification sheets:
- Available in PDF/MSDS format
- Custom packaging solutions
- Technical support for process optimization
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