EntityQ64703485· pop 35· linked from 289 articlesphosphonic acidSign in to savechemical compound, tautomer of phosphorous acidConnectionsacidEntityphosphoric acidEntityhydrogen chlorideEntitythiocyanic acidEntityphosphonateEntitymercuryEntityInternational Standard Book NumberEntitychemical compoundEntityethanolEntitymass densityEntitydigital object identifierEntityInternational Standard Serial NumberEntitychemical formulaEntitysulfuric acidEntitymelting pointEntityboiling pointEntitynitric acidEntitysodium bicarbonateEntityesterEntityInternational Union of Pure and Applied ChemistryEntityCategoriesChembox having GHS dataChemical articles with multiple compound IDsECHA InfoCard ID from WikidataMultiple chemicals in an infobox that need indexingPhosphonatesPhosphonic acidsPhosphorus(III) compoundsPhosphorus oxoacids