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Our group is studying the 193.3 nm photochemistry of methanol (CH$3$OH) isolated in solid pH$2$ using high-resolution FTIR spectroscopy to explore the low temperature reactions of H-atoms with CH$3$OH. Gas phase studies have shown that the dominant photodissociation channel is CH$3$OH + h$\nu$ \rightarrow CH$3$O + H,\textbf{101}, 5665 (1994).} and thus the {\it in situ} photochemistry is expected to produce methoxy and H-atom radicals. After photolysis the methoxy radicals are immobilized at these temperatures, but the H-atoms can still readily move through solid pH$2$. For short time 193.3 nm exposures, greater than 90% of the CH$3$OH remains intact and therefore repeated FTIR spectra immediately after photolysis can be used to record the kinetics of reactions of H-atoms with CH$3$OH. We observe exponential growth in the intensities of a number of peaks that can be assigned to the hydroxymethyl CH$2$OH radical. Further, the growth is bi-exponential and we believe there are two processes that lead to the formation of CH$2$OH: (1) fast growth by interconversion of CH$3$O to CH$2$OH and (2) slow growth due to hydrogen abstraction reactions of cold H-atoms with CH$3$OH. We have not observed the methoxy radical. Currently we are performing photochemical experiments on fully deuterated methanol (CD$3$OD) in solid pH$2$ to test these kinetic interpretations, and the most recent results and analysis will be presented.