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Na 2 [Fe(CO) 4] + RBr → Na[RFe(CO) 4] + NaBr. This solution is then treated sequentially with PPh 3 and then acetic acid to give the aldehyde, RCHO. Disodium tetracarbonylferrate can be used to convert acyl chlorides to aldehydes. This reaction proceeds via the intermediacy of iron acyl complex. Na 2 [Fe(CO) 4] + RCOCl → Na[RC(O)Fe(CO) 4 ...
The mixture is stirred at 100 °C, and then subjected to evaporation, cooling, crystallization, and drying to obtain the orange crystals of sodium tetrachloroaurate. [4] [6] H[AuCl 4] + NaCl → Na[AuCl 4] + HCl 2 H[AuCl 4] + Na 2 CO 3 → 2 Na[AuCl 4] + H 2 O + CO 2. However, more efficient preparation methods have been discovered recently.
2 HCl + Na 2 Fe(CO) 4 → 2 NaCl + H 2 Fe(CO) 4. Reaction between an acid and a carbonate or bicarbonate salt yields carbonic acid, which spontaneously decomposes into carbon dioxide and water. The release of carbon dioxide gas from the reaction mixture drives the reaction to completion.
2 NaCl + 2 H 2 O → 2 NaOH + H 2 + Cl 2. Without a membrane, the OH − ions produced at the cathode are free to diffuse throughout the electrolyte. As the electrolyte becomes more basic due to the production of OH −, less Cl 2 emerges from the solution as it begins to disproportionate to form chloride and hypochlorite ions at the anode:
HOCl + H 2 O 2 → HCl + O 2 + H 2 O. In a weakly acidic condition, fairly concentrated (35%) H 2 O 2 solution undergoes a rapid oxidative reaction with no competitive reduction reaction of HClO 2 to form HOCl. HClO 2 + H 2 O 2 → HOCl + O 2 + H 2 O. Chlorine dioxide reacts rapidly with H 2 O 2 to form chlorous acid. 2ClO 2 + H 2 O 2 → 2HClO ...
The reaction takes place at about 400 to 450 °C in the presence of a variety of catalysts such as . 4 HCl + O 2 2 Cl 2 + 2 H 2 O {\displaystyle {\ce {4HCl + O2 -> 2 Cl2 + 2H2O}}} Bromine and iodine are extracted from brine by displacing with chlorine.
2 na 2 o 2 + 2 co 2 → 2 na 2 co 3 + o 2 Alkali metal peroxides can be used for the synthesis of organic peroxides. One example is the conversion of benzoyl chloride with sodium peroxide to di benzoyl peroxide .
Alternatively, HCl can be generated by the reaction of sulfuric acid with sodium chloride: [17] NaCl + H 2 SO 4 → NaHSO 4 + HCl↑. This reaction occurs at room temperature. Provided there is NaCl remaining in the generator and it is heated above 200 °C, the reaction proceeds further: NaCl + NaHSO 4 → Na 2 SO 4 + HCl↑