An IARC working group of 19 experts in chemical carcinogenesis and seven industrial or governmental observers met in October 1996 in Lyon to prepare updated monographs and evaluations on crystalline and amorphous silica, palygorskite (attapulgite), sepiolite, and wollastonite. Monographs on these agents were published previously in Volume 42 of the IARC Monographs (1). Also evaluated by the gro...

The growing demand of energy needs the search for alternative sources different to fossil fuels. use biomass as source is one most studied, because there are high value products that can be produced from biomass. One these ?-valerolactone, obtained furfural, which a derived product. To transform furfural into ?-valerolactone necessary bifunctional catalyst and hydrogen source. In this work, was...

Aqueous suspensions of clay particles, such as montmorillonite (MMT) platelets and sepiolite (Sep) rods, tend to form gels at concentrations around 1 vol %. For Sep rods, adsorbing sodium polyacrylate to the surface allows for an isotropic-nematic phase separation to be seen instead. Here, MMT is added to such Sep suspensions, resulting in a complex phase behavior. Across a range of clay concen...