Emission Factor
Caustic soda (50%) (made by electrolysis of NaCl in membrane cells)
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Emission factor summary
Process description: The electrolysis of NaCl in membrane cells produces the main product caustic soda (50%). For this purpose, the process consumes sodium carbonate, hydrochloric acid, sodium chloride, and calcium chloride. Utilities consumed comprise electricity, steam, cooling water, inert gas, and process water. Dataset type is technology-specific (core layer). Allocation type is allocation according to: Chlorine (The Chlor-Alkali Process), Euro Chlor, January 2022. In case of energy co-production, allocation via avoided burden is applied for the co-produced energy. CAS RN is 1310-73-2. All datasets are based on the attributional LCA approach and the methodology defined in the cm.chemicals methodology document.
| Property | Value |
|---|---|
| Name | Caustic soda (50%) (made by electrolysis of NaCl in membrane cells) |
| Sector | Materials and Manufacturing |
| Category | Chemical Products |
| Source | Carbon Minds |
| Source Dataset | cm.chemicals V2.02 |
| Region | |
Unit Type | |
| Year | 2023 |
| Year Released | 2025 |
| Emission Factor |
|
| Scopes | 3.1 |
LCA Activity | cradle_to_gate |
Supported CO2e Calculation Method | AR6 |
| Data Versioning |
|
API Reference
Activity ID
chemicals-type_caustic_soda_50percent_electrolysis_of_nacl_in_membrane_cells-dataset-type_technology_specific_core_layer
UUID
0e95145f-d231-8e5e-ab07-e4bf020ffd7a
Code Snippet
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