An intense illumination is created when an oxyhydrogen flame is directed at a cylinder of quicklime ( calcium oxide ), which can be heated to before melting.
3.
A common propane / air flame burns at about, a propane / oxygen flame burns at about, an oxyhydrogen flame burns at 2, 800 �C ( 5, 070 �F ), and an acetylene / oxygen flame burns at about.
4.
In outside vapor deposition or vapor axial deposition, the glass is formed by " flame hydrolysis ", a reaction in which silicon tetrachloride and germanium tetrachloride are oxidized by reaction with water ( H 2 O ) in an oxyhydrogen flame.
5.
These include : a flame temperature that is not higher than necessary for fusion; always keeping the melted product in the same part of the oxyhydrogen flame; and reducing the point of contact between the melted product and support to as small an area as possible.
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