Acids
Organic and inorganic acids suitable for a wide variety of laboratory applications. Products are available in solid and liquid forms and in various pH values, quantities, reagent grades, and purities.
Acids are defined as substances that have a sour taste, a low pH (<7), and cause litmus paper to turn red. They also react with bases (yielding water and ionic compounds called salts) and produce hydrogen gas when used to dissolve metals such as zinc and iron.
Chemically, an acid is a molecule or ion that acts as a proton or hydrogen ion donor (Brønsted-Lowry acid) in a non-aqueous solution. In water, acids form hydronium ions (H3O+).
An acid is alternatively defined as a molecule or ion that accepts an electron pair (Lewis acid). One example is trifluoroborane, which has a boron atom capable of accepting an electron pair from ammonia (NH3) to form NH3-BF3.
Common inorganic acids include hydrochloric, sulfuric, nitric, and phosphoric acids. Common organic acids include acetic, benzoic, citric, and lactic acids.
In the laboratory, acids are used as reagents or catalysts in many types of chemical reactions.
Strong acids, such as sulfuric and hydrochloric acid, are highly corrosive and have extensive commercial applications.
- Sulfuric acid is used to process petroleum and minerals and to make other chemicals like nitric acid
- Hydrochloric acid is used to pickle steel and other metals
- Some acids are used as neutralizers to produce salts; for example, ammonium nitrate is produced by the reaction of nitric acid with ammonia
- Many acids are also used in the food and beverage industry
Do you need bulk and custom chemical solutions? Ask our Fisher Scientific Chemical Specialists.
DL-Lactic acid, 80-85% aq. soln.
CAS: 50-21-5 Molecular Formula: C3H6O3 Molecular Weight (g/mol): 90.08 MDL Number: MFCD00004520 InChI Key: JVTAAEKCZFNVCJ-UHFFFAOYNA-N Synonym: lactic acid,dl-lactic acid,2-hydroxypropionic acid,milk acid,lactate,polylactic acid,ethylidenelactic acid,lactovagan,tonsillosan,acidum lacticum PubChem CID: 612 ChEBI: CHEBI:78320 IUPAC Name: 2-hydroxypropanoic acid SMILES: CC(O)C(O)=O
Sulfuric Acid, 50% (w/w), Ricca Chemical
CAS: 7664-93-9 Molecular Formula: H2O4S Molecular Weight (g/mol): 98.07 MDL Number: MFCD00064589 InChI Key: QAOWNCQODCNURD-UHFFFAOYSA-N Synonym: oil of vitriol,sulphuric acid,dihydrogen sulfate,mattling acid,battery acid,dipping acid,acide sulfurique,electrolyte acid,acidum sulfuricum,vitriol brown oil PubChem CID: 1118 ChEBI: CHEBI:26836 IUPAC Name: sulfuric acid SMILES: OS(O)(=O)=O
Perchloric acid, ACS, 69.0-72.0%, redistilled
CAS: 7601-90-3 Molecular Formula: ClHO4 Molecular Weight (g/mol): 100.45 MDL Number: MFCD00011325 InChI Key: VLTRZXGMWDSKGL-UHFFFAOYSA-N Synonym: unii-v561v90bg2,perchloric acid,perchloric acid acid by mass forbidden,perchloric acid, acs reagent,perchlorsaeure,perchloric acid,ueberchlorsaeure,hyperchloric acid,hclo4 PubChem CID: 24247 ChEBI: CHEBI:29221 IUPAC Name: perchloric acid SMILES: O[Cl](=O)(=O)=O
p-Toluenesulfonic acid monohydrate, 97%, Thermo Scientific Chemicals
CAS: 6192-52-5 Molecular Formula: C7H10O4S Molecular Weight (g/mol): 190.213 MDL Number: MFCD00142137 InChI Key: KJIFKLIQANRMOU-UHFFFAOYSA-N Synonym: p-toluenesulfonic acid monohydrate,4-methylbenzenesulfonic acid hydrate,4-methylbenzenesulfonic acid monohydrate,p-toluene sulfonic acid monohydrate,unii-3bto78gaff,benzenesulfonic acid, 4-methyl-, monohydrate,ptoluenesulfonic acid,p-toluenesulfonic acid, monohydrate,3bto78gaff,4-methylbenzene-1-sulfonic acid hydrate PubChem CID: 521998 IUPAC Name: 4-methylbenzenesulfonic acid;hydrate SMILES: CC1=CC=C(C=C1)S(=O)(=O)O.O
Oxalic acid, 5% w/v aq. soln.
CAS: 144-62-7 Molecular Formula: C2H2O4 Molecular Weight (g/mol): 90.034 MDL Number: MFCD00002573 InChI Key: MUBZPKHOEPUJKR-UHFFFAOYSA-N Synonym: ethanedioic acid,aktisal,aquisal,oxiric acid,oxalate,oxalsaeure,oxaalzuur,kyselina stavelova,acide oxalique,acido ossalico PubChem CID: 971 ChEBI: CHEBI:16995 IUPAC Name: oxalic acid SMILES: C(=O)(C(=O)O)O
Sulfurous acid, ACS, 6.0% SO{2} min
CAS: 7782-99-2 Molecular Formula: H2O3S Molecular Weight (g/mol): 82.073 MDL Number: MFCD00011335 InChI Key: LSNNMFCWUKXFEE-UHFFFAOYSA-N Synonym: sulphurous acid,sulfur dioxide solution,schweflige saure german,h2so3,unii-j1p7893f4j,schweflige saure,acide sulfureux,acido sulfuroso,schweflige saeure,trioxosulfuric acid PubChem CID: 1100 ChEBI: CHEBI:48854 IUPAC Name: sulfurous acid SMILES: OS(=O)O
Hydrobromic acid, 99.9999% (metals basis), 48% w/w aq. soln.
CAS: 10035-10-6 Molecular Formula: BrH Molecular Weight (g/mol): 80.91 MDL Number: MFCD00011323 InChI Key: CPELXLSAUQHCOX-UHFFFAOYSA-N Synonym: hydrogen bromide,hydrobromic acid,bromwasserstoff,broomwaterstof,bromowodor,acido bromidrico,acide bromhydrique,anhydrous hydrobromic acid,bromowodor polish,hydrobromide PubChem CID: 260 ChEBI: CHEBI:47266 SMILES: Br
L(+)-Tartaric acid, disodium salt, dihydrate, 99+%, ACS reagent
CAS: 6106-24-7 Molecular Formula: C4H8Na2O8 Molecular Weight (g/mol): 230.08 MDL Number: MFCD00150035 InChI Key: FGJLAJMGHXGFDE-UDMGOBQRNA-L Synonym: unii-dia7c37aow,disodium tartrate dihydrate,disodium l-+-tartrate dihydrate,dia7c37aow,disodium +-tartrate dihydrate,sodium l-+-tartrate dihydrate,butanedioic acid, 2,3-dihydroxy-2r,3r-, disodium salt, dihydrate,disodium tartarate dihydrate,sodium tartrate nf,sodium tartrate dihydrate mi PubChem CID: 131855972 SMILES: O.O.[Na+].[Na+].O[C@H]([C@@H](O)C([O-])=O)C([O-])=O
Chromosulfuric acid, Thermo Scientific Chemicals
CAS: 65272-71-1 Molecular Formula: Cr2K2O7·H2O4S Molecular Weight (g/mol): 200.237 MDL Number: MFCD00010952 InChI Key: IFMFTIBWWVBKOC-UHFFFAOYSA-L Synonym: absorbency linearity solution #2 24.28 mg/l inverted exclamation marka in hclo4, 25 ml PubChem CID: 131664149 IUPAC Name: dipotassium;chromium;dihydroxide;dihydrate SMILES: O.O.[OH-].[OH-].[K+].[K+].[Cr]
Benzoic acid, 99.5%, for analysis
CAS: 65-85-0 Molecular Formula: C7H6O2 Molecular Weight (g/mol): 122.123 MDL Number: MFCD00002398 InChI Key: WPYMKLBDIGXBTP-UHFFFAOYSA-N Synonym: benzenecarboxylic acid,dracylic acid,benzeneformic acid,carboxybenzene,phenylformic acid,benzenemethanoic acid,phenylcarboxylic acid,retardex,benzoesaeure gk,benzoesaeure gv PubChem CID: 243 ChEBI: CHEBI:30746 IUPAC Name: benzoic acid SMILES: C1=CC=C(C=C1)C(=O)O
Periodic acid, ACS, 99.0-101.0%
CAS: 10450-60-9 Molecular Formula: H5IO6 Molecular Weight (g/mol): 227.94 MDL Number: MFCD00011344 InChI Key: TWLXDPFBEPBAQB-UHFFFAOYSA-N Synonym: orthoperiodic acid,periodic acid,tetrahydroxyiodous acid,acid, periodic,paraperiodic acid,pentahydroxy-l5-iodane oxide,unii-ak1d44l87g,pentahydroxidooxidoiodine,hexaoxoiodic 5-acid,periodic acid, cryst PubChem CID: 25289 ChEBI: CHEBI:29150 IUPAC Name: tetrahydroxyiodous acid SMILES: O[I](O)(O)(O)(O)=O
Oxalic acid dihydrate, 98%
CAS: 6153-56-6 Molecular Formula: C2H6O6 Molecular Weight (g/mol): 126.064 MDL Number: MFCD00149102 InChI Key: GEVPUGOOGXGPIO-UHFFFAOYSA-N Synonym: oxalic acid dihydrate,ethanedioic acid, dihydrate,unii-0k2l2ij59o,ethanedioic acid dihydrate,oxalic acid, dihydrate,oxalicacid dihydrate,dihydrate oxalic acid,oxalic acid di-hydrate,pubchem17416,acmc-209mtm PubChem CID: 61373 IUPAC Name: oxalic acid;dihydrate SMILES: C(=O)(C(=O)O)O.O.O
Acetic acid, sodium salt, 99+%, extra pure, anhydrous
CAS: 127-09-3 Molecular Formula: C2H3NaO2 Molecular Weight (g/mol): 82.03 MDL Number: MFCD00012459 InChI Key: VMHLLURERBWHNL-UHFFFAOYSA-M Synonym: sodium acetate,acetic acid, sodium salt,sodium acetate anhydrous,sodium acetate, anhydrous,acetic acid sodium salt,anhydrous sodium acetate,sodii acetas,sodium ethanoate,natrium aceticum,octan sodny czech PubChem CID: 517045 ChEBI: CHEBI:32954 SMILES: [Na+].CC([O-])=O
Oxalic acid dihydrate, 99.5+%, ACS reagent
CAS: 6153-56-6 Molecular Formula: C2H6O6 Molecular Weight (g/mol): 126.064 MDL Number: MFCD00149102 InChI Key: GEVPUGOOGXGPIO-UHFFFAOYSA-N Synonym: oxalic acid dihydrate,ethanedioic acid, dihydrate,unii-0k2l2ij59o,ethanedioic acid dihydrate,oxalic acid, dihydrate,oxalicacid dihydrate,dihydrate oxalic acid,oxalic acid di-hydrate,pubchem17416,acmc-209mtm PubChem CID: 61373 IUPAC Name: oxalic acid;dihydrate SMILES: C(=O)(C(=O)O)O.O.O
Hydrogen chloride, 5 to 6N solution in 2-propanol, AcroSeal™
CAS: 7647-01-0 | ClH | 36.46 g/mol