sodium dithionite การใช้

• The method commercially used by Flexplay and SpectraDisc employs methylene blue reduced by sodium dithionite.
• In aqueous phase nickel or cobalt salts can be reduced, for example, by sodium dithionite.
• While most bleaches are oxidizing agents, a fewer number are reducing agents such as sodium dithionite.
• 2, 6-Diphenylphenol is nitrated with diluted nitric acid to 4-Nitro-2, 6-diphenylphenol and subsequently reduced with sodium dithionite to the amine.
• It can be prepared from subtitution using either sodium dithionite or sodium sulfide with sodium hydroxide to introduce the thiol functional group.
• Raman spectroscopy and single-crystal X-ray diffraction studies of sodium dithionite in the solid state reveal that sodium dithionite exists in different forms.
• Raman spectroscopy and single-crystal X-ray diffraction studies of sodium dithionite in the solid state reveal that sodium dithionite exists in different forms.
• Sodium dithionite is usually used as a reducing chemical in such experiments ( E?~  " 420 mV at pH 7 ).
• The reduction of the dinitrobenzidine compound can also proceed with tin ( II ) chloride instead of iron powder or with sodium dithionite in methanol.
• Sodium dithionite ( Na 2 S 2 O 4 ), also known as sodium hydrosulfite, is the other main reagent used to brighten mechanical pulps.
• The "'Marschalk reaction "'is the sodium dithionite promoted reaction of a phenolic anthraquinone with an aldehyde to yield a substituted phenolic anthraquinone after the addition of acid.
• The sulphites that can be added to foods in Canada are potassium bisulphite, potassium metabisulphite, sodium bisulphite, sodium dithionite, sodium metabisulphite, sodium sulphite, sulphur dioxide and sulphurous acid.
• A mixture of haemoglobin S ( Hb S ) in a reducing solution ( such as sodium dithionite ) gives a turbid appearance, whereas normal Hb gives a clear solution.
• This compound darkens in air; impurities may be removed by treating a hot aqueous solution with sodium dithionite ( reducing agent ) and activated carbon, and allowing the product to cool crystallize.
• It should not be confused with sodium dithionite, Na 2 S 2 O 4, which is a very different compound, and is a powerful reducing agent with many uses in chemistry and biochemistry.
• The car was carrying 148, 000 pounds of the chemical, sodium dithionite, a flammable product that can produce irritating, corrosive or toxic gases, said Patrick Conley, a spokesman for the Kentucky Division of Emergency Management.
• An example of a modern totally chlorine-free ( TCF ) sequence is "'OZEPY "'where the pulp would be treated with oxygen, then ozone, washed with sodium hydroxide then treated in sequence with alkaline peroxide and sodium dithionite.
• Bleaching mechanical pulp is not a major cause for environmental concern since most of the organic material is retained in the pulp, and the chemicals used ( hydrogen peroxide and sodium dithionite ) produce benign byproducts ( water and, eventually, sodium sulfate, respectively ).
• Mechanical pulp is not a major cause for environmental concern since most of the organic material is retained in the pulp, and the chemicals used ( hydrogen peroxide and sodium dithionite ) produce benign byproducts ( water and sodium sulfate ( finally ), respectively ).
• A completely distinct family of CCox is known as the cytochrome P450 oxidases, so named for the characteristic Soret peak formed by absorbance of light at wavelengths near 450 nm when the heme iron is reduced ( with sodium dithionite ) and complexed to carbon monoxide.