What is the carbon footprint of sodium hypochlorite per tonne?
Sodium hypochlorite is made from chlorine and caustic soda, both from chlor-alkali electrolysis, which runs on a lot of electricity. So its footprint largely follows the power behind that plant. A plant on captive coal power has a much higher figure than one on cleaner supply.
Where it comes from
- Electricity for chlor-alkali cells, the main share.
- Mixing chlorine into caustic soda solution.
- Transport of a dilute solution, often 10 to 12 percent.
Ask for
A supplier figure per tonne at the strength delivered, and the power source of the chlor-alkali plant behind it.
What Senseible does here
Senseible reads the energy invoices behind the making stage into a fingerprinted Scope 1 and 2 record, and keeps material invoices on the Scope 3 trail. Material factors come from your supplier or a named database and are labelled with their source, so the product figure can be traced line by line.
Sources: GHG Protocol Corporate Value Chain (Scope 3) Standard, GHG Protocol Corporate Standard
Last reviewed 2026-10-22.