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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.

Organic Acids (126)
Inorganic Acids (32)

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1 – 15 of 64 results
1
Promotions Available

Gallic acid, 98%

CAS: 149-91-7 Molecular Formula: C7H6O5 Molecular Weight (g/mol): 170.12 MDL Number: MFCD00002510 InChI Key: LNTHITQWFMADLM-UHFFFAOYSA-N Synonym: gallic acid,gallate,benzoic acid, 3,4,5-trihydroxy,gallic acid, tech.,galop,pyrogallol-5-carboxylic acid,kyselina gallova,3,4,5-trihydroxybenzoate,ccris 5523,kyselina gallova czech PubChem CID: 370 ChEBI: CHEBI:30778 IUPAC Name: 3,4,5-trihydroxybenzoic acid SMILES: OC(=O)C1=CC(O)=C(O)C(O)=C1

EDGE
PubChem CID 370
CAS 149-91-7
Molecular Weight (g/mol) 170.12
ChEBI CHEBI:30778
MDL Number MFCD00002510
SMILES OC(=O)C1=CC(O)=C(O)C(O)=C1
Synonym gallic acid,gallate,benzoic acid, 3,4,5-trihydroxy,gallic acid, tech.,galop,pyrogallol-5-carboxylic acid,kyselina gallova,3,4,5-trihydroxybenzoate,ccris 5523,kyselina gallova czech
IUPAC Name 3,4,5-trihydroxybenzoic acid
InChI Key LNTHITQWFMADLM-UHFFFAOYSA-N
Molecular Formula C7H6O5
2

(S)-(+)-Mandelic acid, 99+%

CAS: 17199-29-0 Molecular Formula: C8H8O3 Molecular Weight (g/mol): 152.149 MDL Number: MFCD00004495 InChI Key: IWYDHOAUDWTVEP-ZETCQYMHSA-N Synonym: s-+-mandelic acid,s-mandelic acid,s-2-hydroxy-2-phenylacetic acid,l-mandelic acid,l-+-mandelic acid,2s-2-hydroxy-2-phenylacetic acid,mandelic acid, s,unii-l0umw58g3t,l +-mandelic acid PubChem CID: 439616 ChEBI: CHEBI:32800 IUPAC Name: (2S)-2-hydroxy-2-phenylacetic acid SMILES: C1=CC=C(C=C1)C(C(=O)O)O

EDGE
PubChem CID 439616
CAS 17199-29-0
Molecular Weight (g/mol) 152.149
ChEBI CHEBI:32800
MDL Number MFCD00004495
SMILES C1=CC=C(C=C1)C(C(=O)O)O
Synonym s-+-mandelic acid,s-mandelic acid,s-2-hydroxy-2-phenylacetic acid,l-mandelic acid,l-+-mandelic acid,2s-2-hydroxy-2-phenylacetic acid,mandelic acid, s,unii-l0umw58g3t,l +-mandelic acid
IUPAC Name (2S)-2-hydroxy-2-phenylacetic acid
InChI Key IWYDHOAUDWTVEP-ZETCQYMHSA-N
Molecular Formula C8H8O3
3

trans-Cinnamic Acid, 98+%

CAS: 140-10-3 Molecular Formula: C9H8O2 Molecular Weight (g/mol): 148.161 MDL Number: MFCD00004369 InChI Key: WBYWAXJHAXSJNI-VOTSOKGWSA-N Synonym: cinnamic acid,trans-cinnamic acid,e-cinnamic acid,3-phenylacrylic acid,trans-3-phenylacrylic acid,zimtsaeure,2e-3-phenylprop-2-enoic acid,3-phenylprop-2-enoic acid,3-phenylpropenoic acid PubChem CID: 444539 ChEBI: CHEBI:35697 IUPAC Name: (E)-3-phenylprop-2-enoic acid SMILES: C1=CC=C(C=C1)C=CC(=O)O

EDGE
PubChem CID 444539
CAS 140-10-3
Molecular Weight (g/mol) 148.161
ChEBI CHEBI:35697
MDL Number MFCD00004369
SMILES C1=CC=C(C=C1)C=CC(=O)O
Synonym cinnamic acid,trans-cinnamic acid,e-cinnamic acid,3-phenylacrylic acid,trans-3-phenylacrylic acid,zimtsaeure,2e-3-phenylprop-2-enoic acid,3-phenylprop-2-enoic acid,3-phenylpropenoic acid
IUPAC Name (E)-3-phenylprop-2-enoic acid
InChI Key WBYWAXJHAXSJNI-VOTSOKGWSA-N
Molecular Formula C9H8O2
4

Succinic acid, 99%

CAS: 110-15-6 Molecular Formula: C4H6O4 Molecular Weight (g/mol): 118.09 MDL Number: MFCD00002789 InChI Key: KDYFGRWQOYBRFD-UHFFFAOYSA-N Synonym: succinic acid,amber acid,asuccin,dihydrofumaric acid,bernsteinsaure,katasuccin,wormwood acid,succinate,ethylenesuccinic acid,1,2-ethanedicarboxylic acid PubChem CID: 1110 ChEBI: CHEBI:15741 IUPAC Name: butanedioic acid SMILES: OC(=O)CCC(O)=O

EDGE
PubChem CID 1110
CAS 110-15-6
Molecular Weight (g/mol) 118.09
ChEBI CHEBI:15741
MDL Number MFCD00002789
SMILES OC(=O)CCC(O)=O
Synonym succinic acid,amber acid,asuccin,dihydrofumaric acid,bernsteinsaure,katasuccin,wormwood acid,succinate,ethylenesuccinic acid,1,2-ethanedicarboxylic acid
IUPAC Name butanedioic acid
InChI Key KDYFGRWQOYBRFD-UHFFFAOYSA-N
Molecular Formula C4H6O4
5
Promotions Available

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
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
6

Formic acid, 99%, for analysis

CAS: 64-18-6 Molecular Formula: CH2O2 Molecular Weight (g/mol): 46.025 MDL Number: MFCD00003297 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 SMILES: C(=O)O

PubChem CID 284
CAS 64-18-6
Molecular Weight (g/mol) 46.025
ChEBI CHEBI:30751
MDL Number MFCD00003297
SMILES C(=O)O
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
7

Hydrogen chloride, pure, 2N solution in diethyl ether, AcroSeal™

CAS: 7647-01-0 | ClH | 36.46 g/mol

Linear Formula HCl
Molecular Weight (g/mol) 36.46
ChEBI CHEBI:17883
InChI Key VEXZGXHMUGYJMC-UHFFFAOYSA-N
Density 0.7400g/mL
PubChem CID 313
Name Note 2N solution in diethyl ether
Fieser 04,450; 05,533; 06,283
Formula Weight 36.45
Color Colorless
Physical Form Liquid
Chemical Name or Material Hydrochloric acid
Grade Pure
SMILES Cl
Merck Index 10, 4701
Concentration 1.90 to 2.20N
CAS 60-29-7
Health Hazard 3 GHS P Statement:
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Immediately call a POISON CENTER or doctor/physician.
Do not breathe dust/fume/gas/mist/vapors/spray.
Wash face, hands and any exposed skin thoroughly after handling.

WARNING: The information provided on this web site was developed in compliance with European Union (EU) regulations and is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guide for safe handling and use. It is not to be considered as either a warranty or quality specification.
MDL Number MFCD00011324 MFCD00792839
Health Hazard 2 GHS H Statement:
Harmful if swallowed.
Harmful if inhaled.
Causes severe skin burns and eye damage.
May cause drowsiness or dizziness.
Extremely flammable liquid and vapor.
May form explosive peroxides.
Repeated exposure may cause skin dryness or cracking.
Solubility Information Solubility in water: soluble. Other solubilities: soluble in most organic solvents
Flash Point −40°C
Health Hazard 1 GHS Signal Word: Danger
Synonym hydrochloric acid,hydrogen chloride,muriatic acid,chlorohydric acid,acide chlorhydrique,chlorwasserstoff,spirits of salt,hydrogen chloride hcl,anhydrous hydrochloric acid,chloorwaterstof
Molecular Formula ClH
Specific Gravity 0.74
8

Acetic acid, 99.5%, pure

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
9

Acetic Acid, 99.8%, for analysis

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
10

Hydrogen chloride, 5 to 6N solution in 2-propanol, AcroSeal™

CAS: 7647-01-0 | ClH | 36.46 g/mol

Linear Formula HCl
Molecular Weight (g/mol) 36.46
ChEBI CHEBI:17883
InChI Key VEXZGXHMUGYJMC-UHFFFAOYSA-N
Density 0.9090g/mL
PubChem CID 313
Name Note 5 to 6N solution in 2-propanol
Formula Weight 36.45
Color Colorless to Yellow
Physical Form Liquid
Chemical Name or Material Hydrochloric acid
SMILES Cl
Merck Index 14, 4794
Concentration 5N min.
CAS 67-63-0
Health Hazard 3 GHS P Statement:
Wear eye protection/face protection.
IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Avoid breathing dust/fume/gas/mist/vapors/spray.
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
Ground/Bond container and receiving equipment.

WARNING: The information provided on this web site was developed in compliance with European Union (EU) regulations and is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guide for safe handling and use. It is not to be considered as either a warranty or quality specification.
MDL Number MFCD00011324 MFCD00792839
Health Hazard 2 GHS H Statement:
Causes severe skin burns and eye damage.
May cause drowsiness or dizziness.
Harmful if inhaled.
Highly flammable liquid and vapor.
Solubility Information Solubility in water: >1000g/L (20°C). Other solubilities: soluble in methanol, ethanol, 2-propanol: >50g/L
Flash Point 11°C
Packaging AcroSeal™ Glass Bottle
Health Hazard 1 Danger
Synonym hydrochloric acid,hydrogen chloride,muriatic acid,chlorohydric acid,acide chlorhydrique,chlorwasserstoff,spirits of salt,hydrogen chloride hcl,anhydrous hydrochloric acid,chloorwaterstof
IUPAC Name chlorane
Molecular Formula ClH
Specific Gravity 0.909
11

Hydrogen chloride, pure, 1N solution in diethyl ether, AcroSeal™

CAS: 7647-01-0 | ClH | 36.46 g/mol

Linear Formula HCl
Molecular Weight (g/mol) 36.46
ChEBI CHEBI:17883
InChI Key VEXZGXHMUGYJMC-UHFFFAOYSA-N
Density 0.7400g/mL
PubChem CID 313
Name Note 1N Solution in Diethyl Ether
Fieser 04,450; 05,533; 06,283
Formula Weight 36.45
Color Colorless
Physical Form Liquid
Chemical Name or Material Hydrochloric acid
Grade Pure
SMILES Cl
Merck Index 10, 4701
Concentration 0.95 to 1.10N
CAS 60-29-7
Health Hazard 3 GHS P Statement:
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Immediately call a POISON CENTER or doctor/physician.
Do not breathe dust/fume/gas/mist/vapors/spray.
Wash face, hands and any exposed skin thoroughly after handling.

WARNING: The information provided on this web site was developed in compliance with European Union (EU) regulations and is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guide for safe handling and use. It is not to be considered as either a warranty or quality specification.
MDL Number MFCD00011324 MFCD00792839
Health Hazard 2 GHS H Statement:
Harmful if swallowed.
Harmful if inhaled.
Causes severe skin burns and eye damage.
May cause drowsiness or dizziness.
Extremely flammable liquid and vapor.
May form explosive peroxides.
Repeated exposure may cause skin dryness or cracking.
Solubility Information Solubility in water: soluble. Other solubilities: soluble in most organic solvents
Flash Point −40°C
Packaging AcroSeal™ Glass Bottle
Health Hazard 1 GHS Signal Word: Danger
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
Molecular Formula ClH
Specific Gravity 0.74
12

Formic acid, 97%, ACS reagent

CAS: 64-18-6 Molecular Formula: CH2O2 Molecular Weight (g/mol): 46.025 MDL Number: MFCD00003297 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 SMILES: C(=O)O

PubChem CID 284
CAS 64-18-6
Molecular Weight (g/mol) 46.025
ChEBI CHEBI:30751
MDL Number MFCD00003297
SMILES C(=O)O
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
13

Acetic acid, glacial, ACS, 99.7+%

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
15

Acetic acid, glacial, 99.7+% (metals basis)

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