Chemical names

Sodium Carbonate, anhydrous
Soda Ash, anhydrous
Natrii carbonas anhydricus

Presentation

Sodium Carbonate anhydrous is a white, crystalline, hygroscopic powder.

Sodium Carbonate is an inorganic salt with a melting point of 851 °C. It decomposes, when being heated at more than 400 °C under release of CO₂ gas.
Sodium carbonate is a strong alkaline substance with a pH of 11,6 for a 0,1 M aqueous solution. When being neutralized with acids CO₂ gas is released:

Na₂CO₃ + 2 HCl -->  2 NaCl + H₂O + CO₂

Na₂CO₃ + 2 CH₃COOH --> 2 CH₃COONa + H₂O + CO₂

Due to its hydroscopicity Sodium Carbonate attracts water under formation of monohydrate and gives it anti moisture properties.

Na₂CO₃ + H₂O   -->  Na₂CO₃ * H₂O 

Applications*

Sodium carbonate anhydrous is used :

- in cosmetics due to is bulking and pH-buffering properties

- in medical products it is used because of its alcaline, pH-buffering and dehumidifying characteristics.

- as food additive E 500 i.

*Non exhaustive list of applications found in technical literature. Please contact us to know whether we have suitable grade for your application. See also our Quality and Risk Management.