1870年代,德裔英国化学家蒙德曾加以改进。在严格控制条件下,先后用氨和二氧化碳处理食盐,得到碳酸氢钠和氯化铵。

• "Common salt (sodium chloride) is treated with ammonia and then carbon dioxide, under carefully controlled conditions, to form sodium Bicarbonate and ammonium chloride."