# Species Formula 2678 K(+)(H2O)4 (Geo)H8O4K 2679 K(+)(H2O)5H10O5K 2680 K(+)(H2O)5 (Geo)H10O5K 2681 KHCO3.2H2OCH5O5K 2682 KHCO3.2H2O (Geo)CH5O5K 2683 KNO3.2H2OH4NO5K 2684 KNO3.2H2O (Geo)H4NO5K 2685 K(+)(H2O)5.OH (Geo)H11O6K 2686 K(+)(H2O)5.OHH11O6K 2687 K(I)(H2O)6(+) (GUGNUR)H12O6K 2688 K(+)-18-crown-6 (KEGXID) (Geo) C12H24O6K 2689 K(I)O6(+) (AQEPIV) (Geo)C12H24O6K 2690 K(I)O6(+) (AQEPIV)C12H24O6K 2691 K(I)O6N (YAKWOX) (Geo)C16H28NO6K 2692 K(I)O6N (YAKWOX)C16H28NO6K 2693 K(I)O6N2(+) (GAZGIX) (Geo)C18H36N2O6K 2694 K(I)O6N2(+) (GAZGIX)C18H36N2O6K 2695 K(I)O7 (LEGXOK) (Geo)C20H31O7K 2696 K(I)O7 (LEGXOK)C20H31O7K 2697 Nonactin-potassium thiocyanate (NONKCS) (Geo)C40H64O12K 2698 Potassium fluoride (Geo)FK