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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.

Organic Acids (1,002)
Inorganic Acids (984)

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1 – 15 of 923 results
1

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

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CAS 5949-29-1
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
2

Citric acid, 99+%, Thermo Scientific Chemicals

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

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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
3

Nitric Acid Solution 0.1M (0.1N), NIST Standard Solution Ready To Use, for Volumetric 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

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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
4

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

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PubChem CID 284
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
5

Hydrochloric Acid Solution 0.1M (0.1N), NIST Standard Solution Ready To Use, for Volumetric Analysis, Meets Analytical Spec. Of Ph.Eur., Bp

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 IUPAC Name: hydrogen chloride 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
IUPAC Name hydrogen chloride
InChI Key VEXZGXHMUGYJMC-UHFFFAOYSA-N
Molecular Formula ClH
6

Citric acid monohydrate, 99.5%, for analysis, Thermo Scientific Chemicals

CAS: 5949-29-1 Molecular Formula: C6H10O8 Molecular Weight (g/mol): 210.138 MDL Number: MFCD00149972 InChI Key: YASYEJJMZJALEJ-UHFFFAOYSA-N Synonym: citric acid monohydrate,citric acid hydrate,2-hydroxypropane-1,2,3-tricarboxylic acid hydrate,citric acid, monohydrate,unii-2968phw8qp,1,2,3-propanetricarboxylic acid, 2-hydroxy-, monohydrate,citrate,acidum citricum monohydricum,citric acid monohydrate usp PubChem CID: 22230 ChEBI: CHEBI:31404 IUPAC Name: 2-hydroxypropane-1,2,3-tricarboxylic acid;hydrate SMILES: C(C(=O)O)C(CC(=O)O)(C(=O)O)O.O

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PubChem CID 22230
CAS 5949-29-1
Molecular Weight (g/mol) 210.138
ChEBI CHEBI:31404
MDL Number MFCD00149972
SMILES C(C(=O)O)C(CC(=O)O)(C(=O)O)O.O
Synonym citric acid monohydrate,citric acid hydrate,2-hydroxypropane-1,2,3-tricarboxylic acid hydrate,citric acid, monohydrate,unii-2968phw8qp,1,2,3-propanetricarboxylic acid, 2-hydroxy-, monohydrate,citrate,acidum citricum monohydricum,citric acid monohydrate usp
IUPAC Name 2-hydroxypropane-1,2,3-tricarboxylic acid;hydrate
InChI Key YASYEJJMZJALEJ-UHFFFAOYSA-N
Molecular Formula C6H10O8
7

Boric acid, 99+%, Thermo Scientific Chemicals

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

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PubChem CID 7628
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
8

Citric acid, 99.6%, Thermo Scientific Chemicals

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

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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
9

Benzoic acid, 99%, Thermo Scientific Chemicals

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

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PubChem CID 243
CAS 65-85-0
Molecular Weight (g/mol) 122.123
ChEBI CHEBI:30746
MDL Number MFCD00002398
SMILES C1=CC=C(C=C1)C(=O)O
Synonym benzenecarboxylic acid,dracylic acid,benzeneformic acid,carboxybenzene,phenylformic acid,benzenemethanoic acid,phenylcarboxylic acid,retardex,benzoesaeure gk,benzoesaeure gv
IUPAC Name benzoic acid
InChI Key WPYMKLBDIGXBTP-UHFFFAOYSA-N
Molecular Formula C7H6O2
10

Thermo Scientific Chemicals L(+)-Lactic acid, 90% solution in water

CAS: 79-33-4 Molecular Formula: C3H6O3 Molecular Weight (g/mol): 90.078 MDL Number: MFCD00064266 InChI Key: JVTAAEKCZFNVCJ-REOHCLBHSA-N Synonym: l-lactic acid,l-+-lactic acid,s-2-hydroxypropanoic acid,s-lactic acid,sarcolactic acid,s-2-hydroxypropionic acid,2s-2-hydroxypropanoic acid,+-lactic acid,espiritin,tisulac PubChem CID: 107689 ChEBI: CHEBI:422 IUPAC Name: (2S)-2-hydroxypropanoic acid SMILES: CC(C(=O)O)O

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PubChem CID 107689
CAS 79-33-4
Molecular Weight (g/mol) 90.078
ChEBI CHEBI:422
MDL Number MFCD00064266
SMILES CC(C(=O)O)O
Synonym l-lactic acid,l-+-lactic acid,s-2-hydroxypropanoic acid,s-lactic acid,sarcolactic acid,s-2-hydroxypropionic acid,2s-2-hydroxypropanoic acid,+-lactic acid,espiritin,tisulac
IUPAC Name (2S)-2-hydroxypropanoic acid
InChI Key JVTAAEKCZFNVCJ-REOHCLBHSA-N
Molecular Formula C3H6O3
11

Murexide, Thermo Scientific Chemicals

CAS: 3051-09-0 Molecular Formula: C8H3N5O6-2 Molecular Weight (g/mol): 265.141 MDL Number: MFCD00012777 InChI Key: MUMMBXDKKJEASE-UHFFFAOYSA-L Synonym: murexide,ammonium purpurate acid,6-oxo-5-2,4,6-trioxo-1,3-diazinan-5-ylidene amino-1h-pyrimidine-2,4-diolate,5-hexahydro-2,4,6-trioxo-5-pyrimidinyl imino-2,4,6 1h,3h,5h-pyrimidinetrione ammonium salt,6-oxidanylidene-5-2,4,6-tris oxidanylidene-1,3-diazinan-5-ylidene amino-1h-pyrimidine-2,4-diolate PubChem CID: 51381221 IUPAC Name: 6-oxo-5-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)amino]-1H-pyrimidine-2,4-diolate SMILES: C1(=C(N=C(NC1=O)[O-])[O-])N=C2C(=O)NC(=O)NC2=O

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PubChem CID 51381221
CAS 3051-09-0
Molecular Weight (g/mol) 265.141
MDL Number MFCD00012777
SMILES C1(=C(N=C(NC1=O)[O-])[O-])N=C2C(=O)NC(=O)NC2=O
Synonym murexide,ammonium purpurate acid,6-oxo-5-2,4,6-trioxo-1,3-diazinan-5-ylidene amino-1h-pyrimidine-2,4-diolate,5-hexahydro-2,4,6-trioxo-5-pyrimidinyl imino-2,4,6 1h,3h,5h-pyrimidinetrione ammonium salt,6-oxidanylidene-5-2,4,6-tris oxidanylidene-1,3-diazinan-5-ylidene amino-1h-pyrimidine-2,4-diolate
IUPAC Name 6-oxo-5-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)amino]-1H-pyrimidine-2,4-diolate
InChI Key MUMMBXDKKJEASE-UHFFFAOYSA-L
Molecular Formula C8H3N5O6-2
12

Citric Acid, Anhydrous p.a., Thermo Scientific Chemicals

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

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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
13

Oxalic acid dihydrate, 98%, 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

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PubChem CID 61373
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
14

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

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PubChem CID 517045
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