Boiling Point Rise Calculations in Sodium Salt Solutions

• The boiling point rise (elevation) of aqueous industrial solutions is often regarded as an important propertywith respect to chemical process design. This work shows an application of the Pitzer method for calculatingthe activity coefficients to the estimation of the boiling point rise of single-component and multicomponentelectrolyte solutions. Good agreement between experimental and predicted values of the boiling point elevationsof solutions of several salts (NaOH, Na2CO3, Na2SO4, NaCl, Na2S2O3, Na2S, mixed NaOH-Na2CO3, andmixed Na2CO3-Na2SO4) was obtained. A method for using the boiling point rise data to obtain ionic interactionparameters for the Pitzer method is also shown.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Kemiteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Chemical Engineering (hsv//eng)

NATURVETENSKAP  -- Kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences (hsv//eng)

Nyckelord

Pitzer method

electrolyte

osmotic coefficient

Boiling point rise/elevation

water activity

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