Material Insights · Understanding the Material World

PVC

Polyvinyl chloride: the chlorine-based plastic of pipes, window frames, cables and flooring, and India's most import-dependent commodity polymer.

Pseudo-commodities · Commodity plastics · No. 49

  • Single chemical
  • Feedstock: Minerals and salts
  • about 47 Mt a year (2023, derived: S&P Global puts world PVC use at 13 lb (about 5.9 kg) per person in 2023, x 8.0 billion people; in line with the VCM tile)
  • 3.7 t CO₂e per t
  • HS 390410
Pseudo-commodities · Commodity plastics · Foundation · Matter

PVC is 57% chlorine from common salt, and India imports about 3 Mt of the 4.55 Mt it uses.

Chart: Illustration: PVC

Where it comes from

Chart: Map of where it comes from

Chlorine from salt meets ethylene, or acetylene from coal-based calcium carbide, to make vinyl chloride. This is polymerised in water into a white powder.

Three things to know
  1. India uses about 4.55 Mt of PVC a year but has only about 1.6 Mt of capacity, so it imports about 3 Mt.
  2. Carbide-route PVC, mostly in China, can emit 6-10 t of CO2e per tonne against about 2 t on the ethylene route.
  3. US export PVC hit a five-year low of $630 a tonne while suspension PVC CFR India was $720 in February 2026.
The journey
  1. 1 SaltElectrolysis: 1.75 t salt per tonne chlorine
  2. 2 VCMFrom ethylene or coal-based calcium carbide
  3. 3 SuspensionBatch reactors at 50-70 C
  4. 4 CompoundingStabilisers, fillers, up to 40% plasticiser
  5. 5 ConversionPipes, window profiles, flooring, cable
  6. 6 Long lifePipes and frames last decades
Covered in The chemical industry: what it makes and how it is organisedChemicalsThe economics of a chemical plant: costs, prices and profitChemicalsHeavy inorganics: salt, sulphur, nitrogen and phosphorusChemicalsFrom building blocks to plastics, fibres and detergentsChemicalsScale, capacity and feedstock: which chemical plants get builtChemicalsColour and protection: dyes, pigments, paints and coatingsChemicalsand 1 more
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