Vinyl Chloride Monomer (VCM)

1. Product Overview
Vinyl Chloride Monomer (VCM) is a high-purity, halogenated hydrocarbon serving as the sole critical precursor for polyvinyl chloride (PVC) resin production. Primarily utilized in rigid piping, construction materials, medical devices, and automotive components, VCM enables the manufacture of durable, flame-retardant, and chemically resistant polymers. Its strategic importance lies in underpinning global infrastructure and industrial growth, offering buyers a reliable feedstock for high-yield PVC synthesis with optimized reaction control and minimal byproduct formation.

2. Key Specifications & Technical Characteristics

• Chemical composition: CH₂=CHCl (Vinyl Chloride Monomer); CAS No. 75-01-4

• Purity level: ≥99.95% (minimum); residual acetylene ≤5 ppm, water content ≤50 ppm

• Physical characteristics: Colorless, liquefied gas under pressure; ethereal odor; boiling point -13.4°C; density 0.911 g/mL at 20°C

• Inhibitors: 20–30 ppm tert-Butylcatechol (TBC) for polymerization prevention during storage/transit

• Packaging options: Pressurized ISO tanks (20–24 MT net), rail tank cars, or dedicated sea bulk vessels

• Shelf life: 6 months when stored under nitrogen blanket at –10°C to 30°C in sealed, corrosion-resistant vessels

3. Core Industrial Applications

• Primary industries: PVC resin manufacturing, construction (pipes, profiles, siding), medical disposables (IV bags, tubing), automotive (dashboards, underbody coatings), and electrical cable insulation.

• Operational use cases: Suspension PVC (S-PVC) for rigid applications; emulsion PVC (E-PVC) for coatings and pastes; mass PVC for specialty clarity grades.

• Performance advantages: Our VCM delivers narrower molecular weight distribution in final PVC, reducing fisheyes and gel specs by 40% versus market average. Lower residual acetylene prevents catalyst poisoning in downstream polymerization, extending reactor cycles by 15–20%. Cost benefit: Higher conversion rates (88–92% per batch) minimize unreacted monomer recovery costs.

4. Competitive Advantages

• Quality consistency: ISO 9001:2025 certified; lot-to-lot variability below 0.02% purity deviation; SPC-controlled production with real-time GC-MS verification.

• Supply reliability: Dedicated ethane-to-VCM integrated production; dual feedstocks (ethylene + acetylene route) mitigate cracker outages; 99.6% on-time-in-full (OTIF) track record.

• Logistics capability: Global network of pressurized ISO tank containers; real-time IoT tank monitoring (pressure, temp, location); 24/7 emergency response coordination.

• Price competitiveness: Long-term take-or-pay contracts with ethylene suppliers passed through as fixed plus index (e.g., ICIS, Platts) pricing; no hidden demurrage fees for standard port turnaround.

• Sustainability: 35% reduction in VOC fugitive emissions vs. industry baseline; closed-loop water recovery; LCA data available upon request.

• Technical support: Full SDS, COA, polymerisation lab assistance (free trial batch analysis), and dedicated supply chain engineer per contract.

5. Commercial & Supply Information

• Minimum order quantity (MOQ): 20 metric tons (MT) – one ISO tank container

• Loading capacity (MT per container): 24 MT net for standard 20-ft pressurized ISO tank (T50/T75 type)