Sodium Sesquicarbonate (Na2CO3·NaHCO3·2H2O)

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Product details

CAS number533-96-0
HS number2836200000
EC Number208-580-9
Technical specifications≥98.00%
AppearanceWhite crystalline powder
pH (1% solution)10.0-11.5
Solubility in water220 g/L at 20°C
Melting pointDecomposes above 70°C
Density:2.112 g/cm³
Payment method100% prepaid
Packing specifications

25 kg, 50 kg, or 1000 kg bags

Big bags

Bulk tankers


  • Sodium Carbonate Bicarbonate Dihydrate
  • Trona
  • Sodium Carbonate Sesquihydrate

Description: Sodium Sesquicarbonate is a double salt of sodium carbonate and sodium bicarbonate, with two water molecules. It appears as a white, crystalline powder with a slightly alkaline taste. This compound is a naturally occurring mineral known as Trona, but it can also be produced synthetically.



  • pH regulation in various industries
  • Water treatment
  • Detergent and cleaning agent production
  • Glass and ceramics manufacturing
  • Flue gas desulfurization
  • Food additive (acidity regulator)
  • Animal feed supplement
  • Effervescent tablets and powders

Storage and Handling:

  • Store in a cool, dry, and well-ventilated area
  • Keep containers tightly closed when not in use
  • Avoid contact with acids and moisture
  • Use appropriate personal protective equipment when handling


  • Meets USP, BP, and EP standards
  • Kosher and Halal certified
  • REACH registered
  • FDA 21 CFR 184.1736 compliant

Please inquire for more information on specifications, pricing, and lead times. Our dedicated sales team is ready to assist you with your sodium sesquicarbonate requirements.