CRIM 2653 Lecture Notes - Lecture 31: Thermal Death Time, Lone Pair, Denticity
6 May 2020
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Delta x- time it takes to kill 90% of organisms (same thing as decimal reduction time) As we increase temp, the d value decreases. Thermal death time is the same thing as d- value: so, plot for d-value vs. time for microorganism, different sterilization processes have different d-values (time it to takes to kill 90% of microorganisms). If we have a sterilization process and we want to see how effective it is, they give you thermal death time (d-value) at 121. 1 degrees celsius: plot of tdt vs. temp. Based on z-value, when you decrease temp, it takes longer to kill the cells. Won"t ask you to derive equation, but just understand concepts. The closest coordination complexes are a covalent bond. But, instead of sharing electrons, one species donates two electrons to a central atom (acceptor). And usually the acceptor is a transition metal. The species that donate the electrons are called ligands (lewis bases) and acceptors are lewis acids.
