('Hydronium', 'H₃0', (1,), 0),

('Lithium', 'li', (1,), 0),

('Beryllium', 'Be', (2,), 1),

('Boron', 'B', (3,), 5),

('Ammonium', 'NH₄', (1,), 5),

('Sodium', 'Na', (1,), 0),

('Magnesium', 'Mg', (2,), 1),

('Aluminum', 'Al', (3,), 5),

('Silicon', 'Si', (4,), 5),

('Potassium', 'K', (1), 0),

('Calcium', 'Ca', (2,), 1),

('Scandium', 'Sc', (3,), 4),

('Titanium', 'Ti', (3, 4), 4),

('Vanadium', 'V', (5, 4, 3, 2), 4),

('Chromium', 'Cr', (3, 6, 2), 4),

('Maganese', 'Mn', (2, 7, 6, 4, 3), 4),

('Iron', 'Fe', (3, 2), 4),

('Cobalt', 'Co', (3, 2), 4),

('Nickel', 'Ni', (3, 2), 4),

('Copper', 'Cu', (2, 1), 4),

('Zinc', 'Zn', (2,), 4),

('Gallium', 'Ga', (3,), 5),

('Germanium', 'Ge', (3,), 6),

('Arsenic', 'As', (3, 5), 6),

('Rubidium', 'Rb', (1,), 0),

('Strontium', 'Sr', (2,), 1),

('Yttrium', 'Y', (3,), 4),

('Zirconium', 'Zr', (4,), 4),

('Niobium', 'Nb', (5, 3), 4),

('Molybdenum', 'Mo', (6, 5, 4, 3, 2), 4),

('Technetium', 'Tc', (7,), 4),

('Ruthenium', 'Ru', (3, 4, 2, 6, 8), 4),

('Rhodium', 'Rh', (3, 2, 4), 4),

('Palladium', 'Pd', (2, 4), 4),

('Silver', 'Ag', (1,), 4),

('Cadmium', 'Cd', (2,), 4),

('Indium', 'In', (3,), 5),

('Tin', 'Sn', (4, 6), 5),

('Antimony', 'Sb', (3, 5), 6),

('Tellurium', 'Te', (2,), 6),

('Caesium', 'Cs', (1,), 0),

('Barium', 'Ba', (2,), 1),

('Lanthanum', 'La', (3,), 2),

('Cerium', 'Ce', (3, 4), 2),

# Praseodymium is skipped, it is not fun to say

('Neodymium', 'Nd', (3,), 2),

('Promethium', 'Pm', (3,), 2),

('Samarium', 'Sm', (3, 2), 2),

('Europium', 'Eu', (3, 2), 2),

('Gadolinium', 'Gd', (3,), 2),

('Terbium', 'Tb', (3, 4), 2),

('Dysprosium', 'Dy', (3,), 2),

('Holmium', 'Ho', (3,), 2),

('Erbium', 'Er', (3,), 2),

('Thulium', 'Tm', (3, 2), 2),

('Gadolinium', 'Gd', (3, 2), 2),

('Lutetium', 'Lu', (3,), 2),

('Hafnium', 'Hf', (4,), 4),

('Tantalum', 'Ta', (5,), 4),

('Tungsten', 'W', (6, 5, 4, 3, 2), 4),

('Rhenium', 'Re', (7, 6, 4, 2), 4),

('Osmium', 'Os', (4, 2, 3, 6, 8), 4),

('Iridium', 'Ir', (4, 2, 3, 6), 4),

('Platnium', 'Pt', (4, 2), 4),

('Gold', 'Au', (3, 1), 4),

('Mercury(II)', 'Hg', (2,), 4),

('Mercury(I)', 'Hg₂', (2,), 4),

('Thallium', 'Th', (1, 3), 5),

('Lead', 'Pb', (2, 4), 5),

('Bismuth', 'Bi', (3, 5), 5),

('Polonium', 'Po', (4, 2, 6), 6),

('Francium', 'Fr', (1,), 0),

('Radium', 'Ra', (2,), 1),

('Actinium', 'Ac', (3,), 3),

('Thorium', 'Th', (4,), 3),

# Protactinium is skipped, it is not fun to say

('Uranium', 'U', (6, 5, 4, 3), 3),

('Neptunium', 'Np', (5, 6, 4, 3), 3),

('Plutonium', 'Pu', (4, 6, 5, 3), 3),

('Americium', 'Am', (3, 6, 5, 4), 3),

('Curium', 'Cm', (3,), 3),

('Berkelium', 'Bk', (3, 4), 3),

('Californium', 'Cf', (3,), 3),

('Einsteinium', 'Es', (3,), 3),

('Fermium', 'Fm', (3,), 3),

('Mendelevium', 'Md', (3), 3),

('Nobelium', 'No', (3, 2), 3),

('Lawrencium', 'Lr', (3,), 3),

('Rutherfordium', 'Rf', (4,), 4),

('Dubnium', 'Db', (5,), 4),

('Seaborgium', 'Sg', (6,), 4),

('Bohrium', 'Bh', (7,), 4),

('Hassium', 'Hs', (8,), 4),

('Hydride', 'H', 1),

('Fluoride', 'F', 1),

('Chloride', 'Cl', 1),

('Bromide', 'Br', 1),

('Iodide', 'I', 1),

('Oxide', 'O', 2),

('Sulfide', 'S', 2),

('Selenide', 'Se', 2),

('Telluride', 'Te', 2),

('Nitride', 'N', 3),

('Phosphide', 'P', 3),

('Arsenide', 'As', 3),

('Carbide', 'C', 4),

('Silicide', 'Si', 4),

('Cyanide', 'CN', 1),

('Hydroxide', 'OH', 1),

('Hypochlorite', 'ClO', 1),

('Hypobromite', 'BrO', 1),

('Hypoiodite', 'IO', 1),

('Chlorite', 'ClO₂', 1),

('Bromite', 'BrO₂', 1),

('Iodite', 'IO₂', 1),

('Bisulfite', 'HSO₃', 1),

('Nitrite', 'NO₂', 1),

('Sulfite', 'SO₃', 2),

('Chlorate', 'ClO₃', 1),

('Bromate', 'BrO₃', 1),

('Iodate', 'IO₃', 1),

('Perchlorate', 'ClO₄', 1),

('Perbromate', 'BrO₄', 1),

('Periodate', 'IO₄', 1),

('Bicarbonate', 'HCO₃', 1),

('Bisulfate', 'HSO₄', 1),

('Dihydrogen phosphate', 'H₂PO₄', 1),

('Acetate', 'C₂H₃O₂', 1),

('Nitrate', 'NO₃', 1),

('Permanganate', 'MnO₄', 1),

('Thiocyanate', 'SCN', 1),

('Carbonate', 'CO₃', 2),

('Chromate', 'CrO₄', 2),

('Dichromate', 'Cr₂O₇', 2),

('Hydrogen phosphate', 'HPO₄', 2),

('Oxalate', 'C₂O₄', 2),

('Sulfate', 'SO₄', 2),

('Thiosulfate', 'S₂O₃', 2),

('Borate', 'BO₃', 3),

('Phosphate', 'PO₄', 3),

('Arsenate', 'AsO₄', 3),

('Tetraborate', 'B₄O₇', 2),

('Tartate', 'C₄H₄O₆', 2),

('Binoxalate', 'HC₂O₄', 1),

('Hydrogen Sulfide', 'HS', 1),

('Amide', 'NH₂', 1),

('Peroxide', 'O₂', 2),

('Hexafluorosilicate', 'SiF₆', 2),

('Silicate', 'SiO₃', 2),

('Silicate', 'SiO₄', 2),

sha_hash = sha_hash[:20]

group = [f for f in cations if f[3] == int(sha_hash[:5], 16) % 7]

cation = group[int(sha_hash[5:15], 16) % len(group)]

if len(cation[2]) > 1:

roman = ['I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII']

charge = cation[2][int(sha_hash[15:], 16) % len(cation[2])]

return (cation[0] + '(' + roman[charge-1] + ')', cation[1], charge)

salt = (get_cation(digest),

get_anion(digest))

paren = [False, False]

subscript = "₀ ₂₃₄₅₆₇₈₉"

for sub in subscript:

if sub in salt[0][1]:

paren[0] = True

if sub in salt[1][1]:

paren[1] = True

if sum(1 for c in salt[0][1] if c.isupper()) is not 1:

paren[0] = True

if sum(1 for c in salt[1][1] if c.isupper()) is not 1:

paren[1] = True

name = salt[0][0] + " " + salt[1][0]

formula_parts = [salt[0][1], salt[1][1], salt[1][2], salt[0][2]]

if paren[0]:

formula_parts[0] = "(" + formula_parts[0] + ")"

if paren[1]:

formula_parts[1] = "(" + formula_parts[1] + ")"

formula_parts[2] = formula_parts[2]//fractions.gcd(formula_parts[2],

formula_parts[3])

formula_parts[3] = formula_parts[3]//fractions.gcd(formula_parts[2],

formula_parts[3])

formula = ''.join([f for f in (formula_parts[0] +

subscript[formula_parts[2]] +

formula_parts[1] +

subscript[formula_parts[3]]) if not f == ' '])