data_1010780
_chemical_name_systematic          'Dodecatungstophosphoric acid 30-hydrate'
_chemical_formula_structural       'H3 P W12 O40 (H2 O)30'
_chemical_formula_sum              'H63 O70 P W12'
_publ_section_title
;
Structure of the crystals of 12-phosphotungstic acid
;
_publ_author_name                  'Keggin, J F'
_journal_name_full                 'Nature (London)'
_journal_coden_ASTM                NATUAS
_journal_volume                    132
_journal_year                      1933
_journal_page_first                351
_journal_page_last                 351
_cell_length_a                     23.281(2)
_cell_length_b                     23.281
_cell_length_c                     23.281
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  90
_cell_volume                       12618.4
_cell_formula_units_Z              8