1 2 4 5-Benzenetetracarboxylic anhydride
Aluminum potassium disulfate dodecahydrate
Ammonium Bisulfate Crystal Granular H3N H2O4S or NH4 HSO4 or H5NO4S
Bisphenoxyethanolfluorene (BPEF)
Pyromellitic Dianhydride (PMDA)
Sodium Metasilicate Pentahydrate