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Gold/Mining/Energy : Gold Price Monitor

GDXJ 93.03

+3.0%

Nov 7 4:00 PM EST

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To: Bill Jackson who wrote (74713)	8/9/2001 8:59:57 AM
From: E. Charters	Read Replies (1) of 116753

No, I am right. You don't need an anionic solution. If that were possible in Calcium chloride then they would have had a process for electroplating Ti 100 years ago. TiCl4 is not well behaved in CaCl2 solution. So they did not. Here is a description of Chen's method. Dr Chen's calculations showed, however, that it should be possible to reduce titanium dioxide electrically without having to dissolve it. Instead, one of the electrodes dipped into the calcium chloride is made of solid titanium dioxide. Other chemists have avoided doing this because they reckoned that solid dioxide is an insulator and therefore could not be electrolysed. But Dr Chen's observation suggested this electrolysis could happen because the dioxide becomes a conductor once a tiny amount of oxygen is removed from it. How this oxygen is removed becomes your job as a research chemist. Perhaps it happens when a certain heat and charge density is reached. ("when a tiny amount" etc.. ) Obviously not too many people have experimented at temp. and charge because TiO2 is an insulator and they just made assumptions. It could be by gaseous attack, or acidic as in HF, iodide or chloride, perhaps by exposing to heated CO. 2TIO2 plus H2 at heat will make a Ti203 species plus water. Perhaps that is what the articles means by a "tiny amount of oxygen". (25% per molecule, but maybe only a certain number of molecules ... ~10% need be reduced) Note that heating in an oxidizing atmosphere will change Fe304 to Fe203. Magnetic to non magnetic. I wish these journalists would write correctly, they don't have to cut corners to talk down to people or write above people's heads to be correct. So does the conversion happen naturally or is gaseous treatment necessary to make the TiO2 conductive? EC<:-}

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