Sodium chloride

Made by

Used by

• Chlor-alkali by membrane-cell electrolysis (100 kt/a Cl2, 50 wt-% caustic soda, hydrogen)FeedstockConcept · not reviewed
• Soda ash by the Solvay ammonia-soda process (1000 t/d light ash, concept)FeedstockConcept · not reviewed

Takes part in

• 2NaCl+2H₂O→givesCl₂+H₂+2NaOHReactant · Chlor-alkali electrolysis (overall cell reaction) · one process
• Na₂CO₃+2HCl→gives2NaCl+H₂O+CO₂Product · Neutralisation of excess carbonate with hydrochloric acid · one process
• SOCl₂+4NaOH→givesNa₂SO₃+2NaCl+2H₂OProduct · one process
• 5CELL+24ClO₂+24NaOH→gives30CO₂+24NaCl+37H₂OProduct · Oxidation of carbohydrate by the ClO2 not used on lignin (yield loss) · one process
• 5LIG+2ClO₂+2NaOH→gives5OXL+2NaCl+H₂OProduct · Lignin oxidation by chlorine dioxide (5 electrons per ClO2) · one process
• PCl₃+5NaOH→givesNA2HPO3+3NaCl+2H₂OProduct · one process
• 2Cl₂S₂+6NaOH→givesNa₂S₂O₃+2S+4NaCl+3H₂OProduct · one process
• 2Cl₂S+6NaOH→givesNa₂S₂O₃+4NaCl+3H₂OProduct · one process
• POCl₃+6NaOH→givesNa₃PO₄+3NaCl+3H₂OProduct · one process
• CH₃NaO+HCl→givesNaCl+CH₄OProduct · Neutralisation of the residual catalyst (acidulator) · one process
• 2NaBr+Cl₂→gives2NaCl+Br₂Product · Oxidation of bromide by chlorine (bromine liberation) · one process
• Cl₂+2NaOH→givesNaCl+NaOCl+H₂OProduct · 2 processes
• 2NaI+Cl₂→gives2NaCl+I₂Product · Liberation of iodine from the brine iodide by chlorine (R-101) · one process
• Na₂SO₃+Cl₂+2NaOH→givesNa₂SO₄+2NaCl+H₂OProduct · Chemical dechlorination with sulfite in alkaline brine · 2 processes
• NaCl+NH₃+CO₂+H₂O→givesNaHCO₃+NH₄ClReactant · Carbonation and bicarbonate precipitation (carbonating towers) · one process
• COCl₂+4NaOH→givesNa₂CO₃+2NaCl+2H₂OProduct · one process
• NaOH+HCl→givesNaCl+H₂OProduct · Neutralisation of caustic and hydrochloric acid · 3 processes
• MgCl₂+2NaOH→givesMg(OH)₂+2NaClProduct · Magnesium removal with caustic · one process