Titanium solar abundance

From the isotopic decomposition of normal titanium one finds that the mass-46 isotope, 4STi, is one of the four lesser abundant of the stable titanium isotopes 8.0% of all Ti. On the scale where one million silicon atoms is taken as the standard for solar-system matter, this isotope has... 

Based on the bulk chemistry, IDPs are divided into two groups (i) micrometer-sized chondritic particles and (ii) micrometer-sized nonchondritic particles. A particle is defined as chondritic when magnesium, aluminum, silicon, sulfur, calcium, titanium, chromium, manganese, iron, and nickel occur in relative proportions similar (within a factor of 2) to their solar element abundances, as represented by the Cl carbonaceous chondrite composition (Brownlee et al., 1976). Chondritic IDPs differ significantly in form and texture from the components of known carbonaceous chondrite groups and are highly enriched in carbon relative to the most carbon-rich Cl carbonaceous chondrites (Rietmeijer, 1992 Thomas et al., 1996 Rietmeijer, 1998, 2002). 

Wolf D. and Palme H. (2001) The solar system abundance of phosphorus and titanium and the nebular volatihty of phosphorus. Meteorit. Planet. Sci. 36, 559-571. 

The actinides (U, Th, Pu), alkaline earths (Be, Mg, Ca, Sr, Ba), lanthanides (elements La - Lu), Al, and the elements in groups 3b (Sc, Y), 4b (Ti, Zr, Hf), and 5b (V, Nb, Ta) of the periodic table are refractory lithophile elements. The refractory lithophiles are 5% of the total mass of the rock in solar composition material. Aluminum Al, calcium Ca, and titanium Ti are the three most abundant refractory lithophiles, and they form minerals that are the host phases for most of the less abundant refractory lithophile elements such as the actinides, lanthanides, and transition elements in group 5b of the periodic table. Some of the less abundant refractory lithophiles - the group 4b elements Zr, Hf, and the group 3b elements Y and Sc - condense as oxides before any Ca, Al, Ti-bearing minerals form [9], But the rest condense into the more abundant host phases. 

Titanium dioxide-based materials have proved to be the most suitable for the majority of environmental applications. TiOa is abundant, chemically inert, stable to photo- and chemical corrosion, inexpensive, relatively non-toxic, with good electronic and optical properties. However, it should be noted that the toxicity of Ti02 in the form of nanoparticles is currently under study [33, 34]. Ti02 is of special interest since it can use natural solar-UV radiation for excitation, which makes it a promising candidate in photocatalysis using solar light as energy source. 

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