甲酸银是一种无机化合物,化学式为HCOOAg,不稳定。
甲酸银可由甲酸和碳酸银,或甲酸盐和可溶性银盐反应,在-15~0℃反应,沉淀得到。在室温,Ag+便可和HCOO-发生氧化还原反应而析出银。[1]
- 2 HCOOH + Ag2CO3 → 2 HCOOAg + H2O + CO2↑
另外,A.G. Brook在文献[2]中提到,硝酸银和甲酸钠在暗处反应,可以得到甲酸银,其固体可被干燥。
甲酸银可以用于制备甲酸酯,如在0℃的己烷中和叔丁基氯反应:[1]
- (CH3)3CCl + HCOOAg→ (CH3)3COOCH + AgCl
和三苯基氯硅烷反应,可以得到三苯基甲硅烷甲酸酯。[2]
甲酸银的配合物(PPh3)2AgO2CH已被制得,热稳定性较甲酸银高,但达到一定温度后仍会析出银。[3]
George A Cowan, Fugassi James Paul. Method of making silver formate[P]. US 2630444 A. 1953.3
A. G. Brook. Thermal Rearrangements of Organosilicon and Organogermanium Compounds[J]. J. Am. Chem. Soc., 1955. 77 (18): 4827-4829. DOI: 10.1021/ja01623a042.
Graham A. Bowmaker, John V. Hanna, Peter C. Healy, et al. Crystal Structure, Infrared and Solid State CP MAS NMR Characterization of [(PPh3)2AgO2CH] and of [(PPh3)2AgO2CH]·2HCO2H, a Complex of the H-Bonded [H2(HCO2)3]- Species. J. Phys. Chem., 1995, 99 (12): 3909–3917. DOI: 10.1021/j100012a008.
W. M. Haynes. CRC Handbook of Chemistry and Physics 95thed. CRC Press, 2014. pp 5-211. Solubility Chart