Density of some titanium-bearing silicate liquids and the compositional dependence of the partial molar volume of TiO 2

Details Density of some titanium-bearing silicate liquids and the compositional dependence of the partial molar volume of TiO 2 Density of some titanium-bearing silicate liquids and the compositional dependence of the partial molar volume of TiO 2

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992gecoa..56.3403d&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 56, Issue 9, pp.3403-3407

Other

12

Scientific paper

The densities of thirteen silicate liquids along the Na 2 SiO 3 -TiO 2 and CaSiO 3 -TiO 2 joins and six other titanium-bearing silicate liquids of the general formula X 2/n n+ TiSiO 5 (where X = Li , Na, K, Rb, Cs, Ca, Sr, Ba) have been measured in equilibrium with air using the double Pt bob Archimedean method. The Na 2 SiO 3 -TiO 2 join was investigated from 10-50 mole% TiO 2 in the temperature range 1000-1150°C whereas the CaSiO 3 -TiO 2 join was investigated from 10-80 mole% TiO 2 in the temperature range of 1400-1625°C. Density increases with TiO 2 content along both joins. Partial molar volumes of the binary endmembers, Na 2 SiO 3 and CaSiO 3 , and of TiO 2 have been computed. The partial molar volume of Na 2 SiO 3 agrees well with that determined by et al. (1955). The partial molar volume of CaSiO 3 is in disagreement with that of et al. (1958). The partial molar volume of TiO 2 derived from a linear fit to the Na 2 SiO 3 -TiO 2 join is 27.6(3) cm 3 /mole at 1150°C. The partial molar volume of TiO 2 derived from linear extrapolation of the CaSiO 3 -TiO 2 data to TiO 2 at 1600°C is 24.3(4) cm 3 /mole. Comparison of the partial molar volume data from these binary joins with TiO 2 liquid density data ( , 1991) requires the existence of a large positive excess volume in the Na 2 SiO 3 -TiO 2 system at 1150°C.

Affiliated with

Also associated with

No associations

Rating

Density of some titanium-bearing silicate liquids and the compositional dependence of the partial molar volume of TiO 2 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Density of some titanium-bearing silicate liquids and the compositional dependence of the partial molar volume of TiO 2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Density of some titanium-bearing silicate liquids and the compositional dependence of the partial molar volume of TiO 2 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1767616