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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.

Inorganic Acids (223)
Organic Acids (101)

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1 – 15 of 123 results
1

Citric Acid, 99.5 to 100.5% (based on Anhydrous substance), Honeywell Fluka™
BIOPHARMA

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

EDGE
PubChem CID 311
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
2

Citric acid monohydrate, Honeywell Fluka™

CAS: 5949-29-1 Molecular Formula: C6H10O8 Molecular Weight (g/mol): 210.14 InChI Key: YASYEJJMZJALEJ-UHFFFAOYSA-N PubChem CID: 22230 ChEBI: CHEBI:31404 IUPAC Name: 2-hydroxypropane-1,2,3-tricarboxylic acid hydrate SMILES: O.OC(=O)CC(O)(CC(O)=O)C(O)=O

EDGE
PubChem CID 22230
CAS 5949-29-1
Molecular Weight (g/mol) 210.14
ChEBI CHEBI:31404
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
4

Lactic acid, Honeywell Fluka™
BIOPHARMA

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

PubChem CID 612
CAS 50-21-5
Molecular Weight (g/mol) 90.08
ChEBI CHEBI:78320
MDL Number MFCD00004520
SMILES CC(O)C(O)=O
Synonym lactic acid,dl-lactic acid,2-hydroxypropionic acid,milk acid,lactate,polylactic acid,ethylidenelactic acid,lactovagan,tonsillosan,acidum lacticum
IUPAC Name 2-hydroxypropanoic acid
InChI Key JVTAAEKCZFNVCJ-UHFFFAOYNA-N
Molecular Formula C3H6O3
5

Hydrobromic Acid, purum p.a., Honeywell™

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 IUPAC Name: bromane SMILES: Br

PubChem CID 260
CAS 10035-10-6
Molecular Weight (g/mol) 80.91
ChEBI CHEBI:47266
MDL Number MFCD00011323
SMILES Br
Synonym hydrogen bromide,hydrobromic acid,bromwasserstoff,broomwaterstof,bromowodor,acido bromidrico,acide bromhydrique,anhydrous hydrobromic acid,bromowodor polish,hydrobromide
IUPAC Name bromane
InChI Key CPELXLSAUQHCOX-UHFFFAOYSA-N
Molecular Formula BrH
6
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Sulfuric Acid, ACS Reagent, 95.0 to 98.0%, Honeywell Fluka™

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
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
7

Trifluoroacetic acid, Reagent Grade, 99%, Honeywell™

CAS: 76-05-1 Molecular Formula: C2HF3O2 Molecular Weight (g/mol): 114.02 MDL Number: MFCD00004169 InChI Key: DTQVDTLACAAQTR-UHFFFAOYSA-N Synonym: trifluoroacetic acid,perfluoroacetic acid,trifluoroethanoic acid,trifluoroacetic acid,acetic acid, trifluoro,trifluoroaceticacid,cf3cooh,trifluoro acetic acid,trifluoro-acetic acid,kyselina trifluoroctova PubChem CID: 6422 ChEBI: CHEBI:45892 IUPAC Name: trifluoroacetic acid SMILES: OC(=O)C(F)(F)F

PubChem CID 6422
CAS 76-05-1
Molecular Weight (g/mol) 114.02
ChEBI CHEBI:45892
MDL Number MFCD00004169
SMILES OC(=O)C(F)(F)F
Synonym trifluoroacetic acid,perfluoroacetic acid,trifluoroethanoic acid,trifluoroacetic acid,acetic acid, trifluoro,trifluoroaceticacid,cf3cooh,trifluoro acetic acid,trifluoro-acetic acid,kyselina trifluoroctova
IUPAC Name trifluoroacetic acid
InChI Key DTQVDTLACAAQTR-UHFFFAOYSA-N
Molecular Formula C2HF3O2
8

Hydrofluoric Acid, Technical grade, Honeywell Fluka™

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

PubChem CID 14917
CAS 7664-39-3
Molecular Weight (g/mol) 20.01
ChEBI CHEBI:29228
MDL Number MFCD00011346
Synonym hydrofluoric acid,hydrogen fluoride,fluorhydric acid,hydrofluoride,rubigine,fluorwasserstoff,hydrogen-fluoride,antisal 2b,fluorowodor polish,caswell no. 484
InChI Key KRHYYFGTRYWZRS-UHFFFAOYSA-N
Molecular Formula FH
9
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Hydrochloric acid, Puriss. p.a., ACS Reagent, Reag. ISO, Reag. Ph. Eur., fuming, ≥37%, APHA: ≤10, Honeywell Fluka™

CAS: 7647-01-0 Molecular Formula: ClH Molecular Weight (g/mol): 36.46 MDL Number: MFCD00011324 MFCD00792839 InChI Key: VEXZGXHMUGYJMC-UHFFFAOYSA-N Synonym: hydrochloric acid,hydrogen chloride,muriatic acid,chlorohydric acid,acide chlorhydrique,chlorwasserstoff,spirits of salt,hydrogen chloride hcl,anhydrous hydrochloric acid,chloorwaterstof PubChem CID: 313 ChEBI: CHEBI:17883 SMILES: Cl

PubChem CID 313
CAS 7647-01-0
Molecular Weight (g/mol) 36.46
ChEBI CHEBI:17883
MDL Number MFCD00011324 MFCD00792839
SMILES Cl
Synonym hydrochloric acid,hydrogen chloride,muriatic acid,chlorohydric acid,acide chlorhydrique,chlorwasserstoff,spirits of salt,hydrogen chloride hcl,anhydrous hydrochloric acid,chloorwaterstof
InChI Key VEXZGXHMUGYJMC-UHFFFAOYSA-N
Molecular Formula ClH
10
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Nitric acid, TraceSELECT™, for trace analysis, ≥69.0%, Honeywell Fluka™

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
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
11
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Acetic acid, Puriss. p.a., ACS Reagent, Reag. ISO, Reag. Ph. Eur., ≥99.8%, Honeywell Fluka™

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
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
13

Nitric acid, ACS Reagent, 70%, Honeywell Fluka™

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
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
14

Tannic Acid, Honeywell Fluka™
BIOPHARMA

CAS: 1401-55-4 Molecular Formula: C76H52O46 Molecular Weight (g/mol): 1701.206 MDL Number: MFCD00066397 InChI Key: LRBQNJMCXXYXIU-JPZKJCTESA-N Synonym: tannins,gallotannic acid,quebracho extract,acide tannique,d'acide tannique,tannic acid usp:jan,unii-28f9e0djy6 PubChem CID: 134129492 SMILES: C1=C(C=C(C(=C1O)O)O)C(=O)OC2=CC(=CC(=C2O)O)C(=O)OCC3C(C(C(C(O3)OC(=O)C4=CC(=C(C(=C4)OC(=O)C5=CC(=C(C(=C5)O)O)O)O)O)OC(=O)C6=CC(=C(C(=C6)OC(=O)C7=CC(=C(C(=C7)O)O)O)O)O)OC(=O)C8=CC(=C(C(=C8)OC(=O)C9=CC(=C(C(=C9)O)O)O)O)O)OC(=O)C1=CC(=C(C(=C1)OC(=O)C1=CC(=C(

PubChem CID 134129492
CAS 1401-55-4
Molecular Weight (g/mol) 1701.206
MDL Number MFCD00066397
SMILES C1=C(C=C(C(=C1O)O)O)C(=O)OC2=CC(=CC(=C2O)O)C(=O)OCC3C(C(C(C(O3)OC(=O)C4=CC(=C(C(=C4)OC(=O)C5=CC(=C(C(=C5)O)O)O)O)O)OC(=O)C6=CC(=C(C(=C6)OC(=O)C7=CC(=C(C(=C7)O)O)O)O)O)OC(=O)C8=CC(=C(C(=C8)OC(=O)C9=CC(=C(C(=C9)O)O)O)O)O)OC(=O)C1=CC(=C(C(=C1)OC(=O)C1=CC(=C(
Synonym tannins,gallotannic acid,quebracho extract,acide tannique,d'acide tannique,tannic acid usp:jan,unii-28f9e0djy6
InChI Key LRBQNJMCXXYXIU-JPZKJCTESA-N
Molecular Formula C76H52O46
15

Adipic Acid, Honeywell Fluka™
BIOPHARMA

CAS: 124-04-9 Molecular Formula: C6H10O4 Molecular Weight (g/mol): 146.142 MDL Number: MFCD00004420 InChI Key: WNLRTRBMVRJNCN-UHFFFAOYSA-N Synonym: adipic acid,adipinic acid,1,4-butanedicarboxylic acid,adilactetten,acifloctin,acinetten,1,6-hexanedioic acid,molten adipic acid,kyselina adipova,adipinsaure german PubChem CID: 196 ChEBI: CHEBI:30832 IUPAC Name: hexanedioic acid SMILES: C(CCC(=O)O)CC(=O)O

PubChem CID 196
CAS 124-04-9
Molecular Weight (g/mol) 146.142
ChEBI CHEBI:30832
MDL Number MFCD00004420
SMILES C(CCC(=O)O)CC(=O)O
Synonym adipic acid,adipinic acid,1,4-butanedicarboxylic acid,adilactetten,acifloctin,acinetten,1,6-hexanedioic acid,molten adipic acid,kyselina adipova,adipinsaure german
IUPAC Name hexanedioic acid
InChI Key WNLRTRBMVRJNCN-UHFFFAOYSA-N
Molecular Formula C6H10O4