1. Product Overview & Specifications

Chemical Identification

CAS No.: 1746-03-8
Molecular Formula: C₂H₅O₃P
Molecular Weight: 108.03 g/mol
Synonyms: Ethenephosphonic acid, Ethylene phosphonic acid, VPA

Physical-Chemical Properties

Safety Profile (GHS Classification)

• Skin Corrosion/Irritation: Category 1B
• Serious Eye Damage: Category 1
• Handling Requirements: Corrosive substance (UN 3261, Packing Group III)

2. Key Applications & Industrial Uses

Advanced Material Science

• Flame Retardants: Reacts with metal oxides to form intumescent char layers
• Polymer Modification: Enhances adhesion in PVAc-based wood adhesives (+40% bond strength)
• Metal Surface Treatment: Creates corrosion-resistant chelate complexes on steel substrates

Electronics Manufacturing

• PCB cleaning solutions (removes ionic contaminants <5 μg/cm²)
• Semiconductor passivation layers (improves dielectric constant by 15-20%)

Water Treatment Systems

• Scale inhibition efficiency: 92% against CaCO₃ at 50 ppm dosage
• Compatible with reverse osmosis membranes (pH 2-10 operational range)

3. Implementation Case Studies

Automotive Sealing Systems

Challenge: Develop low-VOC adhesive for EV battery housings
Solution: 2% VPA additive in acrylic formulations
Results: VOC reduction 73%, peel strength 8.2 N/mm (ISO 11339)

Construction Materials

Application: Fire-resistant coatings for steel structures
Formulation: 15% VPA in epoxy-intumescent system
Performance: Achieved 120-minute fire rating (UL 1709)

4. Client Success Stories

Chemical Manufacturer A (Shanghai)

• Annual Consumption: 8 MT
• Application: Production of specialty surfactants
• Benefit Achieved: 22% reduction in emulsion particle size distribution

Electronic Materials Supplier B

• Implementation: Copper CMP slurries
• Technical Outcome: Surface roughness Ra < 2 nm (SEMI MF1819)
• Economic Impact: $1.2M/year savings in wastewater treatment

5. Contact for Technical Consultation

Our chemical engineering team provides:
– Custom formulation support
– Regulatory compliance guidance
– Bulk pricing for industrial quantities

Direct Line: (86) 15866781826
Technical Email: info@vivalr.com
Office Hours: Mon-Fri 8:30 AM – 5:30 PM CST