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[ Last edited by linweiguo0 on 2007-4-16 at 19:36 ]
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CCD2004ÉϹØÓÚÕâ¸ö¶«Î÷µÄÄÚÈÝ:
Molecular Formula: HNa
Molecular Weight: 23.998
Accurate Mass: 23.997592
Percentage Composition: H 4.20%; Na 95.80%
General Statement: NaCl struct.
Source/Synthesis: Synth. by direct reaction of the elements at elevated temps.
Use/Importance: Commercially available as a dispersion in mineral oil or as a solid. Reducing agent in org. chem. Used in synth. of NaBH4
Physical Description: Moisture-sensitive white powder
Other Data: Dec. on heating into Na and H2. Reacts violently with H2O  NaOH + H2.  Hf 56.44 kJ mol1; Gf 33.55 kJ mol1; S 40.0 J K1 mol1
Hazard  Toxicity: Can react violently on addn. to H2O, also reacts violently or explosively with a variety of substances. Highly destructive to all tissues
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