salt vs pyrophosphate

Other hyponyms of salt include acetate, ethanoate, citrate, arsenate, chlorate, dibasic salt, hypochlorite, sulfonate, lactate, perchlorate, alkali, ammonium chloride, sal ammoniac, benzoate, borate, borosilicate, calcium lactate, calcium octadecanoate, calcium stearate, carbamate, carbonate, fulminate, chromate, cyanide, potassium bromide, potassium chlorate, potassium dichromate, ferricyanide, ferrocyanide, fluoroboride, fluosilicate, glutamate, halide, isocyanate, calcium chloride, calcium sulfate, calcium sulphate, manganate, chrome alum, tartrate, oxalacetate, oxaloacetate, oxalate, permanganate, inorganic phosphate, orthophosphate, phosphate, polyphosphate, acrylate, propenoate, salicylate, double salt, bile salt, Glauber's salt, Glauber's salts, cream of tartar, potassium bitartrate, potassium hydrogen tartrate, tartar, sodium chlorate, bichromate, dichromate, sodium bichromate, sodium dichromate, microcosmic salt, silicate, sal soda, soda, soda ash, sodium carbonate, washing soda, sodium carboxymethyl cellulose, sodium fluoride, sulfate, sulphate, thiocyanate, tungstate, urate, vanadate, xanthate, chloroplatinate, ammonium salt, selenite, stearate, mellitate, cyclamate.