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The variation of the stable region of arsenic compounds in aqueous environment with temperature has been investigated by constructing the Pourbaix diagram of arsenic at different temperatures. The standard potential corresponding to the boundary between arsenic compounds with different charge valence was estimated to be decreased with temperature, which means the stability of arsenic compound with +5 charge valence increases. The distribution diagram of the most highly oxidized arsenic compound showed that arsenic acid is formed at higher pH and arsenate is generated at lower pH as temperature rises. The aquatic toxicity due to arsenic compounds was considered to be decreased with temperature in the neutral pH condition based on the $LD_T$ value defined in this study.
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참고문헌 (21)
참고문헌 신청
Woo, D. S. / 2006 / Choishin Soojiloyumgaeron / Donghwagisool :106~107
임미희 / 2011 / 金屬汚染 土壤洗滌 廢水의 化學的 處理와 再循環 技術 / 자원리싸이클링 20(3):28~39
Atkins, P. / 2010 / Physical Chemistry / Oxford University Press
CRC / 2008 / Crc Handbook of Chemistry and Physics / CRC press
Desesso, J. M. / 1998 / An Assessment of the Developmental Toxicity of Inorganic Arsenic / Reproductive Toxicology 12(4):385~433
임미희 / 2011 / 金屬汚染 土壤洗滌 廢水의 化學的 處理와 再循環 技術 / 자원리싸이클링 20(3):28~39
Atkins, P. / 2010 / Physical Chemistry / Oxford University Press
CRC / 2008 / Crc Handbook of Chemistry and Physics / CRC press
Desesso, J. M. / 1998 / An Assessment of the Developmental Toxicity of Inorganic Arsenic / Reproductive Toxicology 12(4):385~433
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