Binary mixtures exhibiting maximum flash-point behavior

• Main Authors: Lin Shen Chun, 林聖鈞
• Other Authors: Liaw Horng Jang
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/22056522365788263759

碩士 === 中國醫藥大學 === 環境醫學研究所 === 93 === The flash-point specification is one of the major safety data items specified in the typical material safety data sheet, but even those listed in a variety of MSDS sheet are, typically, only valid for a pure and specific compound composition. The existence of maximum flash-point solution was demonstrated in this study. The behavior of such a solution has the potential to be applied in hazard reduction. The sufficient condition for a binary mixture to form a maximum flash-point solution and the equations to determine the maximum flash-point composition and maximum flash-point are proposed here. The derivative of flash point with respect to composition derived previously, which was based upon the flash point-prediction model proposed in a previous study, was applied to derive both the sufficient conditions and equations referred to above. Such a condition and equations both were verified by comparison of predicted results with experimentally derived data. The results reveal that this derived condition is satisfactory for the identification of the status of a liquid solution as being a maximum flash-point solution and the proposed equations satisfactory to successfully estimate the value of the maximum flash-point composition and the maximum flash point. The Flash Point Analyzer, HFP 362-Tag, manufactured by Walter Herzog GmbH (Germany) was used to measure the flash point of liquid solutions associated with different composition as tests. The Flash Point Analyzer is operated according to the standard test method, ASTM D56.