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setup and eluted with organic reactants in order to probe the reducing power. The powder is mixed with additional (wet) silica gel which provides additional hydrogen. A
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172:. When this material is exposed to dry oxygen the reducing power is not affected. At further heating to 400 °C (752 °F)
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James L. Dye, Kevin D. Cram, Stephanie A. Urbin, Mikhail Y. Redko, James E. Jackson, and
Michael Lefenfeld
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material must be handled in an inert atmosphere. Heating phase 0 at 150 °C (302 °F) takes it to
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Alkali Metals Plus Silica Gel: Powerful
Reducing Agents and Convenient Hydrogen Sources
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and safe to handle as opposed to the pure metal. The material can also be used as a
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at elevated temperatures. The resulting black powder material is an effective
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Chemical reagent prepared by absorbing alkali metal into silica gel
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and in a similar fashion dibenzothiophene is reduced to
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240:are reduced by the powder and form highly coloured
225:are formed. The powder reacts with water to form
176:can be handled safely in an ambient environment.
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51:introducing citations to additional sources
210:The metal reacts with the silica gel in an
256:. The column converts benzyl chloride to
244:. The powder can also be introduced in a
41:Relevant discussion may be found on the
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252:of naphthalene takes 5 minutes
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246:column chromatography
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62:"M-SG reducing agent"
141:The metal is either
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212:exothermic reaction
278:Potassium graphite
232:Compounds such as
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312:10.1021/ja051786+
301:J. Am. Chem. Soc.
183:M-SG reductions:
122:is absorbed into
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162:room temperature
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120:alkali metal
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238:naphthalene
214:in which Na
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330:Desiccants
324:Categories
284:References
124:silica gel
73:newspapers
147:potassium
138:source.
134:and as a
132:desiccant
43:talk page
272:See also
266:biphenyl
258:bibenzyl
234:biphenyl
227:hydrogen
197:biphenyl
189:bibenzyl
174:phase II
136:hydrogen
103:May 2020
170:phase I
166:phase 0
164:. This
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143:sodium
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260:in a
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218:Si
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220:4
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158:K
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