To a mixed solution of iron (iii) chloride and potassium hexaoyanoferrate (iii) add a freshly prepared solution of tin (ii) chloride . 加新制备的二氯化锡溶液于三氯化铁与六氰络铁酸（）钾的混和液中。
2.
To a mixed solution of iron ( iii ) chloride and potassium hexaoyanoferrate ( iii ) add a freshly prepared solution of tin ( ii ) chloride 加新制备的二氯化锡溶液于三氯化铁与六氰络铁酸（ ）钾的混和液中。
