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NFPA 704 symbol - hazardous with water missing?

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I'm not a chemist, but as far as I interpret the properties of TiBr₄, shouldn't the fire diamond also bear the crossed "W", as it does in TiCl₄? The article clearly states that "TiBr₄ hydrolyzes rapidly, potentially dangerously, to release hydrogen bromide." LordPsycholus (talk) 17:05, 15 January 2013 (UTC)[reply]__DTELLIPSISBUTTON__{"threadItem":{"timestamp":"2013-01-15T17:05:00.000Z","author":"LordPsycholus","type":"comment","level":1,"id":"c-LordPsycholus-2013-01-15T17:05:00.000Z-NFPA_704_symbol_-_hazardous_with_water_missing?","replies":[]}}-->