Citation: Jun Cheng LIU, Jian Ling ZHANG, Bu Xing HAN, Gan Zuo LI, Guan Ying YANG. Study on the Phase Behavior of Supercritical CO₂/Dynol-604/Water System and Solubilization of Methyl Orange in the Microemulsions[J]. Chinese Chemical Letters, ;2002, 13(1): 87-90. shu

Study on the Phase Behavior of Supercritical CO₂/Dynol-604/Water System and Solubilization of Methyl Orange in the Microemulsions

1.
Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080;
2.
Key lab for colloid and interface chemistry of State Education Ministry, Shandong University, Jinan 250100

Received Date: 8 May 2001

Fund Project: The authors are grateful to the National Natural Science Foundation of China and Ministry of Science and Technology for the financial support (29725308, G20000781).

It was found that Dynol-604, a non-fluorous and no silicon-containing nonionic surfactant, was soluble in supercritical (SC) CO₂.The phase behavior of SC CO₂/Dynol-604/water system was studied.The results showed that one-phase water-in-CO₂ microemulsions could be formed.The solubilization of methyl orange in the microemulsions proved further the existence of water domain in the microemulsions.
- Supercritical carbon dioxide,
- surfactant,
- microemulsions,
- solvatochromic probe
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