I would doubt that there is enough HCl in the atmosphere to make this a significant contributor to the overall CO2 imbalance.
On Tue, Aug 3, 2021 at 12:29 AM Greg Rau <[email protected]> wrote: > 2HCl + CaCO3 ---> CaCl2 + CO2 + H2O. How is this a good thing for GHGs > and GW? > Greg > > On Monday, August 2, 2021, 03:52:35 PM PDT, Geoeng Info < > [email protected]> wrote: > > > https://pubs.acs.org/doi/abs/10.1021/acsearthspacechem.1c00151 > > Heterogeneous Reactivity of HCl on CaCO3 Aerosols at Stratospheric > Temperature > > > - Han N. Huynh and > - V. Faye McNeill > - > - > - > - > - *Abstract* > > Recently proposed as a possible alternative to sulfate particles for > stratospheric solar radiation management (SSRM), calcite (CaCO3) aerosols > have been modeled to have minimal negative impact on both stratospheric > ozone level, through heterogeneous chemistry, and stratospheric > temperature. However, the heterogeneous chemistry of CaCO3 aerosols with > relevant trace gases, such as HCl, at stratospheric conditions is still > underexamined. We studied the kinetics of HCl uptake on airborne CaCO3 > aerosols at stratospheric temperature, 207 ± 3 K, by performing experiments > under dry conditions using an aerosol flow tube coupled with a custom-built > quadrupole chemical ionization mass spectrometer (CIMS) for HCl detection. > The reactive uptake coefficient for HCl was measured to be 0.076 ± 0.009. > This exceeds the reactive uptake coefficient of 0.013 ± 0.001 that we > previously reported for this system at 296 K, consistent with the expected > negative temperature dependence of gas uptake on solid surfaces. This > finding suggests an initial strong reactive uptake of HCl gas on CaCO3 > aerosol surfaces in the stratosphere > > -- > You received this message because you are subscribed to the Google Groups > "geoengineering" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/geoengineering/CAKSzgpaROQJnv3ZD0ZqfMcZzegkw492mxCUktv_nnQEN3MLRGA%40mail.gmail.com > <https://groups.google.com/d/msgid/geoengineering/CAKSzgpaROQJnv3ZD0ZqfMcZzegkw492mxCUktv_nnQEN3MLRGA%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > -- > You received this message because you are subscribed to the Google Groups > "geoengineering" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/geoengineering/146902550.2022050.1627946808075%40mail.yahoo.com > <https://groups.google.com/d/msgid/geoengineering/146902550.2022050.1627946808075%40mail.yahoo.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/geoengineering/CAE%3DUieymn9iSFu%2BHVS%3Dnse0WXbKnz9pC3MRf0jY0mSprqm8Rbw%40mail.gmail.com.
