期刊
ACS CHEMICAL HEALTH & SAFETY
卷 29, 期 5, 页码 441-447出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.chas.2c00032
关键词
process safety; DSC; thermal analysis; thermal hazard analysis; compatibility study
资金
- University of Notre Dame IncroperaRemick Fund for Excellence
- Robert A. Welch Foundation [F1945]
- Gold Plating Services Inc. (Layton, UT)
The assessment of reactive hazards and chemical incompatibilities is crucial in the chemical and pharmaceutical industries for ensuring safe operations. This study presents the construction of custom differential scanning calorimetry high-pressure crucibles using commonly used metals and alloys. These crucibles offer a cost-effective and efficient method for thermal hazard analysis and compatibility tests at elevated temperatures.
The assessment of reactive hazards and chemical incompatibilities is necessary for safe operations in the chemical and pharmaceutical industries. In this investigation, custom differential scanning calorimetry (DSC) high-pressure crucibles made of commonly used metals and alloys have been constructed in-house using a microwelding system containing a jewelry spot-welder and a microscope. They provide an inexpensive and efficient method to perform thermal hazard analysis and compatibility tests at elevated temperatures compared to a DSC with commercial high-pressure crucibles or an accelerating rate calorimeter (ARC). The application of these crucibles is demonstrated with case studies of the thermal hazard analysis of ammonium nitrate (AN) and an ionic liquid: 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([emim][Tf2N]).
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