A combined particle trap/HTDMA hygroscopicity study of mixed inorganic/organic aerosol particles A. A. Zardini, S. Sjogren, C. Marcolli, U. K. Krieger, M. Gysel, E. Weingartner, U. Baltensperger, and T. Peter Institute for Atmospheric and Climate Science, ETH, CH-8092 Zurich, Switzerland Laboratory of Atmospheric Chemistry, Paul Scherrer Institut, CH-5232 Villigen, Switzerland Received: 22 Janu...

Discontinuities in apparent hygroscopicity below and above water saturation have been observed for organic and mixed organic–inorganic aerosol particles in both laboratory studies and in the ambient atmosphere. However, uncertainty remains regarding the factors that contribute to observations of low hygroscopic growth below water saturation but enhanced cloud condensation nuclei (CCN) activity ...

The near-surface environment of Mars is a challenging environment for microorganisms to survive. Yet, resources such as perchlorates and hydrogen peroxide-water mixtures are available that could provide supportive tools for putative Martian life. Here, we focus on the useful properties of perchlorates such as hygroscopicity and the suppression of the freezing point of water, and point to perchl...

This study investigated the hygroscopicity and UV deterioration characteristics of 3 domestic 4 imported woods using natural oil, stain, varnish paints. In terms hygroscopicity, it was found that painted wood lower than unpainted wood, as number coatings increased, decreased. anti-absorption, oil-based chemical paints showed higher resistance water-based paints, oils results comparable to As fo...

This paper attempts to disentangle the role of various aerosol properties (aitken, accumulation and coarse mode number, size and hygroscopicity) in the anthropogenic change in droplet number concentrations. The sensitivity of droplet concentration to aerosol properties is central to estimates of the indirect aerosol effect (IAE), which is arguably the single most uncertain forcing of modern cli...

Alkali metal salts of thiocarboxylic acid, especially anhydrous salts, are of the most important starting materials. However, only a limited amount of information on their preparation and spectral data has been available because of their strong hygroscopicity [1]. Recently, the convenient preparation methods of a series of anhydrous alkali metal dithiocarboxylates were developed [2]. This resul...

Moisture sorption studies have been carried out on 16 low moisture foodstuffs at 27°C and based on the major type of constituent, viz starch. fat, protein and high hygroscopicity. the isotherms have been divided into four groups. The moisture sorption behaviour over 0.060.92 water activity of the foods has indicated that the Brunauer-Emmett-Teller (BET) equation is applicable generally up to 0....