Comprehensive Guide to Sodium Formaldehyde Bisulfite (CAS 870-72-4)
Table of Contents
1. Product Overview & Specifications
Chemical Name: Sodium Formaldehyde Bisulfite
CAS: 870-72-4
Molecular Formula: CH3NaO4S
Molecular Weight: 134.09 g/mol
Appearance: White crystalline powder/needle-like crystals (monohydrate)
Key Properties:
– Melting Point: 200°C (decomposition)
– Water Solubility: 800 g/L (20°C)
– Bulk Density: 1.305 g/cm³
– Flash Point: 184°C
2. Key Applications
Core Industrial Uses:
- Electroplating: Primary component in nickel electroplating brighteners (PN formulation)
- Pharmaceuticals: Intermediate for Isoniazid sulfonate, Neosalvarsan, and anticancer agents
- Mineral Processing: Flotation agent for lead-zinc ore separation
- Photography: Anti-fading additive in color film processing
- Textile Engineering: Fixative for protein-based dyes in fabric printing
3. Technical Parameters Comparison
| Parameter | Industrial Grade | Pharma Grade |
|---|---|---|
| Purity | ≥98% | ≥99.5% |
| Heavy Metals | ≤50 ppm | ≤10 ppm |
| Chloride Content | ≤0.1% | ≤0.01% |
| Packaging | 25 kg HDPE drums | 5 kg vacuum-sealed bags |
4. Industrial Use Cases
Case A: Advanced Electroplating Solution
Implemented in high-precision nickel plating systems to achieve:
– Surface Reflectivity: 92%+
– Corrosion Resistance: 500+ hours salt spray test
– Deposit Uniformity: ±2μm across 1m² surfaces
Case B: Mineral Enrichment Optimization
Increased lead-zinc recovery rates by 18% in flotation circuits through:
– Optimal dosage: 0.5-1.2 kg/ton ore
– pH working range: 6.8-8.5
– Froth stability improvement: 40%
5. Client Success Stories
Client 1: Asian Metal Finishing Co., Ltd.
Challenge: Inconsistent nickel layer adhesion in automotive components
Solution: Custom-formulated PN additive with 2.5% sodium formaldehyde bisulfite
Results:
– Reduced plating defects by 73%
– Increased production throughput by 22%
– Extended bath life by 35%
Client 2: European Pharma Intermediate Manufacturer
Challenge: Low yield in antituberculosis drug synthesis
Solution: High-purity grade (99.9%) implementation
Results:
– Reaction efficiency improved from 68% to 89%
– API impurities reduced to <0.1%
– Annual cost savings: €420,000
6. Safety & Handling Protocols
- PPE Requirements: Nitrile gloves, ANSI Z87.1 goggles, Type N95 respirator
- Storage: Maintain below 30°C in sealed containers with desiccant
- Spill Management: Absorb with inert material (vermiculite/sand)
- Firefighting: Use alcohol-resistant foam or CO₂ extinguishers
- Disposal: Neutralize with 5% sodium hydroxide solution before drainage
7. Request Quotation
Contact our technical team for customized solutions:
Email: info@vivalr.com
Tel: (86) 15866781826
Submit your requirements for:
– Bulk pricing (1MT+ quantities)
– Custom particle size distributions
– Technical datasheets & SDS
– Sample requests (500g minimum)



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