191问答库 > 甲醛被银氨溶液氧化成的化学方程式?

甲醛被银氨溶液氧化成的化学方程式?

2025-03-18 05:50:56
推荐回答（1个）
回答1：

1、HCHO+4Ag(NH3)2OH→（水浴△）（NH4）2CO3+4Ag↓+4NH3↑+2H2O
实际实验中,可能有气体二氧化碳产生!原因是得到的二氧化碳来不及和氨水反应!
2、4Ag(NH3)2OH+HCHO---CO2+4Ag+8NH3+3H2O
当银氨溶液不足时候,可能也会得到甲酸铵!
HCHO + 4Ag[(NH3)2]OH—>4Ag + 2H2O + 6NH3 + (NH4)2CO3
HCHO+4Cu(OH)2→加热→2Cu2O↓+CO2+5H2O
为什么甲醛与银氨溶液反应生成(NH4)2CO3,而不是HCOONH4（甲酸铵）
因为甲酸（HCOOH）也含有醛基,可以被氧化形成碳酸（H2CO3）

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