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17. rida:
HCO<sub>2</sub>CH<sub>3</sub> + NH<sub>3</sub> → HC(O)NH<sub>2</sub> + CH<sub>3</sub>OH
| Section2 = {{Chembox Properties
| C = 1 | H = 2 | O =2
| Appearance = colorless fuming liquid
| Odor = pungent, penetrating
| Density = 1.220 g/mL
| Solubility = miscible
| SolubleOther = miscible with [[ether]], [[acetone]], [[ethyl acetate]], [[glycerol]], [[methanol]], [[ethanol]] <br> partially soluble in [[benzene]], [[toluene]], [[xylene]]s
| MeltingPtC = 8.4
| BoilingPtC = 100.8
| pKa = 3.77 <ref>Brown, H. C. et al., in Braude, E. A. and Nachod, F. C., ''Determination of Organic Structures by Physical Methods'', Academic Press, New York, 1955.</ref>
| Viscosity = 1.57 c[[Poise|P]] at 268 °C
| LogP = −0.54
| RefractIndex = 1.3714 (20 °C)
}}
2 HC(O)NH<sub>2</sub> + 2H<sub>2</sub>O + H<sub>2</sub>SO<sub>4</sub> → 2HCO<sub>2</sub>H + (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub>
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