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• alkapton, alcapton, homogentisic acid go
  an acid formed as an intermediate product of the metabolism of tyrosine and phenylalanine
  
• arsenic acid go
  an acid formed from arsenic pentoxide
  
• cerotic acid, hexacosanoic acid go
  a white solid fatty acid found in waxes (such as beeswax)
  
• chloric acid go
  (HClO3) a strong unstable acid with an acrid odor found in chlorate salts
  
• chlorous acid go
  (HClO2) a strongly oxidizing acid
  
• monobasic acid go
  an acid containing only one replaceable hydrogen atom per molecule
  
• dibasic acid go
  an acid containing two replaceable hydrogen atoms per molecule
  
• tribasic acid go
  an acid containing three replaceable hydrogen atoms per molecule
  
• tetrabasic acid go
  an acid containing four replaceable hydrogen atoms per molecule
  
• fulminic acid go
  (CNOH) an unstable acid occurring mainly in the form of explosive salts and esters that is isomeric with cyanic acid
  
• gamma acid go
  a crystalline acid used to make azo dyes
  
• hydriodic acid go
  (HI) a colorless or yellow aqueous solution of hydrogen iodide
  
• hydrocyanic acid, prussic acid go
  a solution of hydrogen cyanide in water
  
• hydroxy acid go
  any acid that has hydroxyl groups in addition to the hydroxyl group in the acid itself
  
• hyponitrous acid go
  an explosive white crystalline weak acid (H2N2O2)
  
• lysergic acid go
  a crystalline acid often used in medical research
  
• manganic acid go
  a dibasic acid (H2MnO4) found only in solution and in manganate salts
  
• methacrylic acid, 2-methylpropenoic acid go
  an unsaturated acid (C4H6O2) used to make resins and plastics
  
• selenic acid go
  a strong acid (H2SeO4) analogous to sulfuric acid
  
• sulfonic acid, sulphonic acid go
  an acid derived from sulphuric acid
  
• titanic acid go
  a white weak acid that is a hydrated form of titanium dioxide
  
• perchloric acid go
  a powerful oxidizing agent
  
• carboxylic acid go
  an organic acid characterized by one or more carboxyl groups
  
• aminobenzoic acid go
  a derivative of benzoic acid
  
• nitric acid, aqua fortis go
  acid used especially in the production of fertilizers and explosives and rocket fuels
  
• nitrous acid go
  an unstable inorganic acid known only in solution and as nitrite salts
  
• aqua regia, nitrohydrochloric acid go
  a yellow fuming corrosive mixture of nitric and hydrochloric acid that dissolves metals (including gold)
  
• barbituric acid, malonylurea go
  a white crystalline acid derived from pyrimidine
  
• lansoprazole, Prevacid go
  antacid (trade name Prevacid) that suppresses acid secretion in the stomach
  
• boric acid, boracic acid go
  any of various acids containing boron and oxygen
  
• boric acid, orthoboric acid go
  a white or colorless slightly acid solid that is soluble in water and ethanol
  
• bromic acid go
  an unstable acid used as an oxidizing agent
  
• carbamic acid go
  an acid that is known only by virtue of its salts (as ammonium carbamate) or its esters (as urethane)
  
• carbolic acid, phenol, hydroxybenzene, oxybenzene, phenylic acid go
  a toxic white soluble crystalline acidic derivative of benzene
  
• carbonic acid go
  a weak acid known only in solution
  
• chromic acid go
  an unstable acid known only in solution and as chromate salts
  
• citric acid go
  a weak water-soluble acid found in many fruits (especially citrus fruits)
  
• cyanamide, cyanamid go
  a weak soluble dibasic acid (the parent acid of cyanamide salts)
  
• cyanic acid go
  a colorless poisonous volatile liquid acid that hydrolyzes readily to ammonia and carbon dioxide
  
• cyanuric acid go
  a trimer of cyanic acid
  
• ferricyanic acid go
  a brown unstable acid formed from ferricyanide
  
• ferrocyanic acid go
  a white unstable acid formed from ferrocyanide salts
  
• fluoroboric acid go
  an acid of fluorine and boron
  
• fluosilicic acid, hydrofluosilicic acid go
  an unstable poisonous corrosive acid known primarily in the form of its salts
  
• formic acid go
  a colorless pungent fuming vesicatory liquid acid HCOOH found naturally in ants and many plants or made catalytically from carbon monoxide and steam
  
• fumaric acid go
  a colorless crystalline acid with a fruity taste
  
• gallic acid go
  a colorless crystalline acid obtained from tannin
  
• glyceric acid go
  a syrupy acid obtained by oxidation of glycerol or glyceraldehyde
  
• glycolic acid, glycollic acid, hydroxyacetic acid go
  a translucent crystalline compound found in sugar cane and sugar beets and unripe grapes
  
• hydrobromic acid go
  an aqueous solution of hydrogen bromide that is a strong liquid acid
  
• hydrochloric acid, chlorohydric acid go
  an aqueous solution of hydrogen chloride
  
• hydrogen chloride go
  a colorless corrosive gas (HCl)
  
• hydrofluoric acid go
  a weak poisonous liquid acid
  
• hydroiodic acid go
  an acid formed by aqueous solution of hydrogen iodide
  
• hypochlorous acid go
  a weak unstable acid known only in solution and in its salts
  
• iodic acid go
  a soluble crystalline acid
  
• isocyanic acid go
  an acid known only in the form of its esters
  
• itaconic acid go
  a crystalline carboxylic acid
  
• maleic acid go
  a colorless crystalline compound found in unripe fruit (such as apples or tomatoes or cherries) and used mainly to make polyester resins
  
• oxalacetic acid, oxaloacetic acid go
  an acid formed by oxidation of maleic acid (as in metabolism of fats and carbohydrates)
  
• oxalic acid, ethanedioic acid go
  a toxic colorless crystalline organic acid found in oxalis and other plants
  
• oxyacid, oxygen acid go
  any acid that contains oxygen
  
• pantothenic acid, pantothen go
  a vitamin of the vitamin B complex that performs an important role in the oxidation of fats and carbohydrates and certain amino acids
  
• para aminobenzoic acid, PABA go
  a metabolic acid found in yeast and liver cells
  
• pectic acid go
  a complex acid that occurs in ripe fruit and some vegetables
  
• permanganic acid go
  an unstable purple acid (HMnO4) known only in solution or of permanganate salts
  
• phthalic acid go
  a colorless acid used to make dyes and perfumes
  
• picric acid go
  a yellow toxic highly explosive strong acid
  
• pyruvic acid go
  a colorless acid formed as an important intermediate in metabolism or fermentation
  
• dichromic acid go
  the hypothetical acid (H2Cr2O7) from which dichromates are derived
  
• silicic acid go
  a jellylike substance (hydrated silica)
  
• sulfanilic acid, sulphanilic acid go
  a crystalline acid made from aniline and used as a dye
  
• thiocyanic acid go
  an unstable acid that can be obtained by distilling a thiocyanate salt
  
• toluic acid go
  an isomeric acid derived from toluene
  
• triphosphoric acid go
  an acid that is a partial anhydride of three molecules of phosphoric acid
  
• undecylenic acid go
  an acid that is a component of perspiration
  
• uric acid go
  a white tasteless odorless crystalline product of protein metabolism
  
• vitriol, oil of vitriol, sulfuric acid, sulphuric acid go
  (H2SO4) a highly corrosive acid made from sulfur dioxide
  
• xanthic acid go
  any of a class of unstable organic acids containing sulphur