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. 2020 Nov 3;5(45):29102–29109. doi: 10.1021/acsomega.0c03736

Table 1. Initial Oxygen Absorption Temperature of Resin Acids.

sample atmosphere Tabs (K) T0 (K) max. SHR (K/min) tmax (min)
levopimaric acid O2 353.04 354.01 1.118 57.87
neoabietic acid O2 353.13 353.83 11.958 80.47
dehydroabietic acid O2 387.71 398.20 0.199 572.38
levopimaric acid N2 no absorption not exothermic 0 no reaction
neoabietic acid N2 no absorption not exothermic 0 no reaction
dehydroabietic acid N2 no absorption not exothermic 0 no reaction