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they are oxides that retains their physical strength at very high temperatures. this makes them suitable to be used as materials for things like crucibles and furnace linings. They can be subdivided into acidic, alkaline or neutral refractory oxides. an example is SiO2.
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Ruby and sapphire are oxides of?
Sapphire and ruby are oxides of Aluminium Sapphire and ruby are oxides of Aluminium
Are oxides soluble?
All oxides are generally insoluble except for oxides of group I metals (alkali earth metals).
All oxides contain what?
All oxides contain oxygen.
Which oxides are acidic and which oxides are basic?
Sodium oxide, magnesium oxide, and copper oxide are basic oxides, while carbon dioxide, sulfur dioxide, and silicon dioxide are acidic oxides.
What are the impurities in bauxite?
iron oxides, titanium oxides and silica dioxides
What is a common refractory material?
Common refractory materials, materials that maintain their form even in high temperatures, are oxides of silicon, aluminum, and magnesium. The most refractory compound is hafnium carbide.
What do you mean by refractory concrete?
refractory Concrete means refractory castable == ==
Why did Yilong Refractory change their name into Changxing Refractory?
Because of Changxing Refractory's largest investment, Yilong Refractory was renamed as Changxing Refractrory.
How do you use refractory in a sentence?
1) The virus was refractory to the medication. 2) The refractory class was unable to get anything done.
Where you can get refractory concrete?
Refractory Engineers Indianapolis Indiana 3172732000
What is mag-dolo refractory?
magnesium-dolomite based refractory
Will the refractory product quality and services also change as the name of Yilong Refractory changed into Changxing Refractory?
The only change of Yilong Refractory is its name which has changed into Changxing Refractory. Its product quality, pre-sale and after-sale services remain unchanged.
Is the neuron ready to fire during the refractory period?
Refractory period
What is refractory insulation?
Refractory insulation is defined as insulation for extremely high temperatures. The threshold of temperature of insulation for refractory insulation is > 815 Celsius.
What are refractory materials?
They are materials , usually bricks, made with silicon oxides, that will withstand extremely high heat, without decomposition or chemical reaction. e.g. Blast Furnaces are internally lined with refactory bricks to with stand tha 1100 oC temperature of the furnace. The metal shell/chassis of the furnace would melt. Outside these refractory bricks is a water jacket to prevent heat escaping, into the outside environment.
2 Define refractory period and differentiate between absolute and relative refractory periods?
refractory period is the interval between action potential , the absolute refractory period is the period in which second action potential can not be initiated but in relative refractory period the second action potential can be initiated by the more strong stimulus.
What are the types of oxides?
Examples: uranium oxides, sodium oxides, lead oxides, aluminium oxide, plutonium oxides etc.
