potassium carbonate; manganese(II) chloride tetrahydrate in water
参考文献
Halverson, Kurt J.; Kenney, Raymond J.; Benson, JR., Olester; Johnston, Raymond P.; Mao, Guoping; Fleming, Patrick R.; Tiers, George Van Dyke; Jing, Naiyong
Patent: US2013/4967 A1, 2013 ;