Acids

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.

Citric Acid Monohydrate, Certified AR for Analysis, meets analytical specification of Ph.Eur., USP, Fisher Chemical™
CAS: 5949-29-1 Molecular Formula: C6H10O8 Molecular Weight (g/mol): 210.14 MDL Number: 149972 InChI Key: YASYEJJMZJALEJ-UHFFFAOYSA-N IUPAC Name: 2-hydroxypropane-1,2,3-tricarboxylic acid hydrate SMILES: O.OC(=O)CC(O)(CC(O)=O)C(O)=O
CAS | 5949-29-1 |
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Molecular Weight (g/mol) | 210.14 |
MDL Number | 149972 |
SMILES | O.OC(=O)CC(O)(CC(O)=O)C(O)=O |
IUPAC Name | 2-hydroxypropane-1,2,3-tricarboxylic acid hydrate |
InChI Key | YASYEJJMZJALEJ-UHFFFAOYSA-N |
Molecular Formula | C6H10O8 |
Hydrofluoric Acid, 40%, Certified AR for Analysis, Fisher Chemical™
CAS: 7664-39-3 Molecular Formula: FH Molecular Weight (g/mol): 20.01 MDL Number: MFCD00011346 InChI Key: KRHYYFGTRYWZRS-UHFFFAOYSA-N Synonym: hydrofluoric acid,hydrogen fluoride,fluorhydric acid,hydrofluoride,rubigine,fluorwasserstoff,hydrogen-fluoride,antisal 2b,fluorowodor polish,caswell no. 484 PubChem CID: 14917 ChEBI: CHEBI:29228 IUPAC Name: hydrogen fluoride SMILES: F
PubChem CID | 14917 |
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CAS | 7664-39-3 |
Molecular Weight (g/mol) | 20.01 |
ChEBI | CHEBI:29228 |
MDL Number | MFCD00011346 |
SMILES | F |
Synonym | hydrofluoric acid,hydrogen fluoride,fluorhydric acid,hydrofluoride,rubigine,fluorwasserstoff,hydrogen-fluoride,antisal 2b,fluorowodor polish,caswell no. 484 |
IUPAC Name | hydrogen fluoride |
InChI Key | KRHYYFGTRYWZRS-UHFFFAOYSA-N |
Molecular Formula | FH |
Acetic acid, sodium salt trihydrate, 99+%, ACS reagent, Thermo Scientific Chemicals
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
PubChem CID | 517045 |
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CAS | 127-09-3 |
Molecular Weight (g/mol) | 82.03 |
ChEBI | CHEBI:32954 |
MDL Number | MFCD00012459 |
SMILES | [Na+].CC([O-])=O |
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 |
InChI Key | VMHLLURERBWHNL-UHFFFAOYSA-M |
Molecular Formula | C2H3NaO2 |
Picric Acid Solution, EU Pharmacopoeia Grade, Fisher Chemical™
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Oxalic acid dihydrate, 99+%, extra pure, Thermo Scientific Chemicals
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

PubChem CID | 61373 |
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CAS | 6153-56-6 |
Molecular Weight (g/mol) | 126.064 |
MDL Number | MFCD00149102 |
SMILES | C(=O)(C(=O)O)O.O.O |
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 |
IUPAC Name | oxalic acid;dihydrate |
InChI Key | GEVPUGOOGXGPIO-UHFFFAOYSA-N |
Molecular Formula | C2H6O6 |
Sulphuric Acid Solution, 0.5M, Fisher Chemical™
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1,3-Dimethylbarbituric acid, 99% (dry wt.), water <6%, Thermo Scientific Chemicals
CAS: 769-42-6 Molecular Formula: C6H8N2O3 Molecular Weight (g/mol): 156.141 MDL Number: MFCD00006675 InChI Key: VVSASNKOFCZVES-UHFFFAOYSA-N Synonym: 1,3-dimethylbarbituric acid,n,n'-dimethylbarbituric acid,2,4,6 1h,3h,5h-pyrimidinetrione, 1,3-dimethyl,1,3-dimethylbarbituricacid,barbituric acid, 1,3-dimethyl,1,3-dimethylpyrimidine-2,4,6 1h,3h,5h-trione,1,3-dimethyl barbituric acid,1,3-dimethyl-2,4,6 1h,3h,5h-pyrimidinetrione,1,3-dimethyl-2,4,6 1h,3h,5h pyrimidinetrione,1,3-dimethyl-1,3,5-trihydropyrimidine-2,4,6-trione PubChem CID: 69860 IUPAC Name: 1,3-dimethyl-1,3-diazinane-2,4,6-trione SMILES: CN1C(=O)CC(=O)N(C1=O)C

PubChem CID | 69860 |
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CAS | 769-42-6 |
Molecular Weight (g/mol) | 156.141 |
MDL Number | MFCD00006675 |
SMILES | CN1C(=O)CC(=O)N(C1=O)C |
Synonym | 1,3-dimethylbarbituric acid,n,n'-dimethylbarbituric acid,2,4,6 1h,3h,5h-pyrimidinetrione, 1,3-dimethyl,1,3-dimethylbarbituricacid,barbituric acid, 1,3-dimethyl,1,3-dimethylpyrimidine-2,4,6 1h,3h,5h-trione,1,3-dimethyl barbituric acid,1,3-dimethyl-2,4,6 1h,3h,5h-pyrimidinetrione,1,3-dimethyl-2,4,6 1h,3h,5h pyrimidinetrione,1,3-dimethyl-1,3,5-trihydropyrimidine-2,4,6-trione |
IUPAC Name | 1,3-dimethyl-1,3-diazinane-2,4,6-trione |
InChI Key | VVSASNKOFCZVES-UHFFFAOYSA-N |
Molecular Formula | C6H8N2O3 |
Boric acid, Puriss. p.a., ACS Reagent, Reag. ISO, Reag. Ph. Eur., buffer substance, ≥99.8%, Honeywell Fluka™
CAS: 10043-35-3 Molecular Formula: BH3O3 Molecular Weight (g/mol): 61.83 MDL Number: MFCD00011337 InChI Key: KGBXLFKZBHKPEV-UHFFFAOYSA-N Synonym: orthoboric acid,boracic acid,borofax,boron hydroxide,boron trihydroxide,three elephant,basilit b,trihydroxyborone,h3bo3,flea prufe PubChem CID: 7628 ChEBI: CHEBI:33118 IUPAC Name: boric acid SMILES: OB(O)O

PubChem CID | 7628 |
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CAS | 10043-35-3 |
Molecular Weight (g/mol) | 61.83 |
ChEBI | CHEBI:33118 |
MDL Number | MFCD00011337 |
SMILES | OB(O)O |
Synonym | orthoboric acid,boracic acid,borofax,boron hydroxide,boron trihydroxide,three elephant,basilit b,trihydroxyborone,h3bo3,flea prufe |
IUPAC Name | boric acid |
InChI Key | KGBXLFKZBHKPEV-UHFFFAOYSA-N |
Molecular Formula | BH3O3 |
Citric Acid, 99.5 to 100.5% (based on Anhydrous substance), Honeywell Fluka™
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CAS: 77-92-9 Molecular Formula: C6H8O7 Molecular Weight (g/mol): 192.12 MDL Number: MFCD00011669 InChI Key: KRKNYBCHXYNGOX-UHFFFAOYSA-N Synonym: citric acid,citric acid, anhydrous,citro,anhydrous citric acid,citrate,aciletten,citretten,chemfill,hydrocerol a,1,2,3-propanetricarboxylic acid, 2-hydroxy PubChem CID: 311 ChEBI: CHEBI:30769 IUPAC Name: 2-hydroxypropane-1,2,3-tricarboxylic acid SMILES: OC(=O)CC(O)(CC(O)=O)C(O)=O

PubChem CID | 311 |
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CAS | 77-92-9 |
Molecular Weight (g/mol) | 192.12 |
ChEBI | CHEBI:30769 |
MDL Number | MFCD00011669 |
SMILES | OC(=O)CC(O)(CC(O)=O)C(O)=O |
Synonym | citric acid,citric acid, anhydrous,citro,anhydrous citric acid,citrate,aciletten,citretten,chemfill,hydrocerol a,1,2,3-propanetricarboxylic acid, 2-hydroxy |
IUPAC Name | 2-hydroxypropane-1,2,3-tricarboxylic acid |
InChI Key | KRKNYBCHXYNGOX-UHFFFAOYSA-N |
Molecular Formula | C6H8O7 |
Hydrochloric Acid, 37%, Certified AR for Analysis, d=1.18, Fisher Chemical™
CAS: 7647-01-0 Molecular Formula: ClH InChI Key: VEXZGXHMUGYJMC-UHFFFAOYSA-N PubChem CID: 313 ChEBI: CHEBI:17883
PubChem CID | 313 |
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CAS | 7647-01-0 |
ChEBI | CHEBI:17883 |
InChI Key | VEXZGXHMUGYJMC-UHFFFAOYSA-N |
Molecular Formula | ClH |
Formic Acid, 99.0+%, Optima™ LC/MS Grade, Fisher Chemical™
CAS: 64-18-6 Molecular Formula: CH2O2 MDL Number: 3297 InChI Key: BDAGIHXWWSANSR-UHFFFAOYSA-N Synonym: methanoic acid,formylic acid,aminic acid,bilorin,hydrogen carboxylic acid,formisoton,myrmicyl,formira,acide formique,collo-bueglatt PubChem CID: 284 ChEBI: CHEBI:30751 IUPAC Name: formic acid
PubChem CID | 284 |
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CAS | 64-18-6 |
ChEBI | CHEBI:30751 |
MDL Number | 3297 |
Synonym | methanoic acid,formylic acid,aminic acid,bilorin,hydrogen carboxylic acid,formisoton,myrmicyl,formira,acide formique,collo-bueglatt |
IUPAC Name | formic acid |
InChI Key | BDAGIHXWWSANSR-UHFFFAOYSA-N |
Molecular Formula | CH2O2 |
Acetic Acid Glacial, Certified AR for analysis, meets analytical specification of Ph.Eur., BP, Fisher Chemical™
CAS: 64-19-7 Molecular Formula: C2H4O2 Molecular Weight (g/mol): 60.05 MDL Number: MFCD00036152 InChI Key: QTBSBXVTEAMEQO-UHFFFAOYSA-N Synonym: ethanoic acid,ethylic acid,acetic acid, glacial,methanecarboxylic acid,vinegar acid,glacial,acetasol,acide acetique,essigsaeure PubChem CID: 176 ChEBI: CHEBI:15366 IUPAC Name: acetic acid SMILES: CC(O)=O
PubChem CID | 176 |
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CAS | 64-19-7 |
Molecular Weight (g/mol) | 60.05 |
ChEBI | CHEBI:15366 |
MDL Number | MFCD00036152 |
SMILES | CC(O)=O |
Synonym | ethanoic acid,ethylic acid,acetic acid, glacial,methanecarboxylic acid,vinegar acid,glacial,acetasol,acide acetique,essigsaeure |
IUPAC Name | acetic acid |
InChI Key | QTBSBXVTEAMEQO-UHFFFAOYSA-N |
Molecular Formula | C2H4O2 |
Nitric Acid 68-70% d=1.42, Certified AR, for Analysis, Fisher Chemical™
CAS: 7697-37-2 Molecular Formula: HNO3 Molecular Weight (g/mol): 63.01 MDL Number: MFCD00011349 InChI Key: GRYLNZFGIOXLOG-UHFFFAOYSA-N Synonym: hydrogen nitrate,aqua fortis,azotic acid,salpetersaeure,rfna,acidum nitricum,nital,acide nitrique,nitrous fumes,nitryl hydroxide PubChem CID: 944 ChEBI: CHEBI:48107 IUPAC Name: nitric acid SMILES: O[N+]([O-])=O
PubChem CID | 944 |
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CAS | 7697-37-2 |
Molecular Weight (g/mol) | 63.01 |
ChEBI | CHEBI:48107 |
MDL Number | MFCD00011349 |
SMILES | O[N+]([O-])=O |
Synonym | hydrogen nitrate,aqua fortis,azotic acid,salpetersaeure,rfna,acidum nitricum,nital,acide nitrique,nitrous fumes,nitryl hydroxide |
IUPAC Name | nitric acid |
InChI Key | GRYLNZFGIOXLOG-UHFFFAOYSA-N |
Molecular Formula | HNO3 |
Sulfuric Acid Min 95% d=1.83, Certified AR, for Analysis, Fisher 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
PubChem CID | 1118 |
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CAS | 7664-93-9 |
Molecular Weight (g/mol) | 98.07 |
ChEBI | CHEBI:26836 |
MDL Number | MFCD00064589 |
SMILES | OS(O)(=O)=O |
Synonym | oil of vitriol,sulphuric acid,dihydrogen sulfate,mattling acid,battery acid,dipping acid,acide sulfurique,electrolyte acid,acidum sulfuricum,vitriol brown oil |
IUPAC Name | sulfuric acid |
InChI Key | QAOWNCQODCNURD-UHFFFAOYSA-N |
Molecular Formula | H2O4S |