14019-91-1 141676-86-0 14986-91-5 63090-47-1 7783-08-6 7783-21-3 7790-59-2 EINECS 231-979-4 HSDB 675 SELENIC ACID Selenic acid (H2SeO4) Selenic acid [UN1905] [Corrosive] UN1905