000891840 001__ 891840 000891840 005__ 20240712101016.0 000891840 0247_ $$2doi$$a10.1039/D0EM00179A 000891840 0247_ $$2ISSN$$a2050-7887 000891840 0247_ $$2ISSN$$a2050-7895 000891840 0247_ $$2Handle$$a2128/27717 000891840 0247_ $$2altmetric$$aaltmetric:85770597 000891840 0247_ $$2pmid$$a32697206 000891840 0247_ $$2WOS$$aWOS:000560533900012 000891840 037__ $$aFZJ-2021-01763 000891840 082__ $$a333.7 000891840 1001_ $$00000-0003-4930-3638$$aRosati, Bernadette$$b0$$eCorresponding author 000891840 245__ $$aReconciling atmospheric water uptake by hydrate forming salts 000891840 260__ $$aCambridge$$bRSC Publ.$$c2020 000891840 3367_ $$2DRIVER$$aarticle 000891840 3367_ $$2DataCite$$aOutput Types/Journal article 000891840 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1620025024_10190 000891840 3367_ $$2BibTeX$$aARTICLE 000891840 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000891840 3367_ $$00$$2EndNote$$aJournal Article 000891840 520__ $$aMagnesium and calcium chloride salts contribute to the global atmospheric aerosol burden via emission of sea spray and mineral dust. Their influence on aerosol hygroscopicity and cloud forming potential is important but uncertain with ambiguities between results reported in the literature. To address this, we have conducted measurements of the hygroscopic growth and critical supersaturation of dried, size selected nano-particles made from aqueous solution droplets of MgCl2 and CaCl2, respectively, and compare experimentally derived values with results from state-of-the-art thermodynamic modelling. It is characteristic of both MgCl2 and CaCl2 salts that they bind water in the form of hydrates under a range of ambient conditions. We discuss how hydrate formation affects the particles' water uptake and provide an expression for hydrate correction factors needed in calculations of hygroscopic growth factors, critical super-saturations, and derived κ values of particles containing hydrate forming salts. We demonstrate the importance of accounting for hydrate forming salts when predicting hygroscopic properties of sea spray aerosol. 000891840 536__ $$0G:(DE-HGF)POF3-243$$a243 - Tropospheric trace substances and their transformation processes (POF3-243)$$cPOF3-243$$fPOF III$$x0 000891840 588__ $$aDataset connected to CrossRef 000891840 7001_ $$0P:(DE-Juel1)179385$$aPaul, Andreas$$b1$$ufzj 000891840 7001_ $$0P:(DE-HGF)0$$aIversen, Emil Mark$$b2 000891840 7001_ $$0P:(DE-HGF)0$$aMassling, Andreas$$b3 000891840 7001_ $$0P:(DE-HGF)0$$aBilde, Merete$$b4 000891840 773__ $$0PERI:(DE-600)2703791-5$$a10.1039/D0EM00179A$$gVol. 22, no. 8, p. 1759 - 1767$$n8$$p1759 - 1767$$tEnvironmental science$$v22$$x2050-7895$$y2020 000891840 8564_ $$uhttps://juser.fz-juelich.de/record/891840/files/d0em00179a.pdf$$yRestricted 000891840 8564_ $$uhttps://juser.fz-juelich.de/record/891840/files/Hydrates_paper.pdf$$yPublished on 2020-07-14. 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