Borate(1-), tetrafluoro-, hydrazinium(1+) Borate(1-), tetrafluoro-, hydrogen, compd. with hydrazine (1:1) Hydrazine, tetrafluoroborate (1:1) Hydrazinium fluoroborate Hydrazinium(1+), tetrafluoroborate(1-) Hydrazinium(1+), tetrafluoroborate(1-) (1:1)