barium oxide


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barium oxide

[′bar·ē·əm ′äk‚sīd]
(inorganic chemistry)
BaO A white to yellow powder that melts at 1923°C; it forms the hydroxide with water; may be used as a dehydrating agent. Also known as barium monoxide; barium protoxide.
References in periodicals archive ?
For instance, both in the community with the highest incidence of diabetes in the region and in the community with the lowest, the children with diabetes were diagnosed in areas with low levels of barium oxide in moraine.
In contrast, the barium oxide trend showed a decreasing trend towards the northeast (Figure 2c).
It is not easy to understand or to interpret why areas with a very low concentration of barium oxide are associated with a significantly higher incidence of type 1 diabetes than are areas with a high concentration.
When including both compounds in the same regression model, the risk of diabetes increased three-fold in areas with combined low levels of barium oxide in moraine and mercury in brook water plants.
Solid aluminium and barium oxides transit from third zone into the second one without changes.
In the first zone homogeneous oxide alloy of zirconium and barium oxides with a certain share of aluminium oxide are formed as a result of interaction of the charge components.
Chapter 4 does the same, but for imports of natural barium sulfate (barytes) and natural barium carbonate (witherite) excluding purified barium oxide for all countries in the world.
1 Africa: Export Supplies of Natural Barium Sulfate (Barytes) and Natural Barium Carbonate (Witherite) Excluding Purified Barium Oxide
3 Europe: Export Supplies of Natural Barium Sulfate (Barytes) and Natural Barium Carbonate (Witherite) Excluding Purified Barium Oxide
So low rate of erosion is registered only in tungsten electrodes in argon, because in the process of the electric arc discharge burning the bulk of barium oxide in liquid emission film is bound with zirconium dioxide in the form of destoichiometric barium zirconate, and because of this reason is strongly retained in the melt.