Determination of Henry's law constant of formaldehyde as a function of temperature: Application to air-water exchange in Tahtali Lake in Izmir, Turkey

Seyfioglu R., ODABAŞI M.

ENVIRONMENTAL MONITORING AND ASSESSMENT, vol.128, pp.343-349, 2007 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 128
  • Publication Date: 2007
  • Doi Number: 10.1007/s10661-006-9317-3
  • Journal Name: ENVIRONMENTAL MONITORING AND ASSESSMENT
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.343-349
  • Keywords: air-water exchange, formaldehyde, gas stripping technique, Henry's law constant, CARBONYL-COMPOUNDS, SEA EXCHANGE, COEFFICIENTS, ATMOSPHERE, SOLUBILITY, CONGENERS, SEAWATER, KINETICS, HCOOH, HCHO
  • Dokuz Eylül University Affiliated: Yes

Abstract

The Henry's law constant (H) is an important parameter in predicting the transport, behavior and fate of organic compounds in environment. H is also required to model the air-water exchange of chemicals. Henry's law constant of formaldehyde (HCHO) was determined at six temperatures (50, 40, 30, 20, 10, and 5 degrees C) using a bubble-column technique. The apparent Henrys law constant (H-*) values were strongly correlated to inverse of temperature (1/T, K) and the following relationship was obtained: