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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 (5,196)
Inorganic Acids (4,468)

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631 – 645 of 7,079 results
631

Phosphomolybdic acid hydrate, 80%

CAS: 51429-74-4 Molecular Formula: H3Mo12O40P Molecular Weight (g/mol): 1825.40 MDL Number: MFCD00149913 InChI Key: FEFSFHGZSNHJEL-UHFFFAOYSA-N Synonym: Molybdophosphoric acid IUPAC Name: phosphoric acid dodecamolybdenum hexatriacontaoxidandiide SMILES: [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].OP(O)(O)=O

CAS 51429-74-4
Molecular Weight (g/mol) 1825.40
MDL Number MFCD00149913
SMILES [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].OP(O)(O)=O
Synonym Molybdophosphoric acid
IUPAC Name phosphoric acid dodecamolybdenum hexatriacontaoxidandiide
InChI Key FEFSFHGZSNHJEL-UHFFFAOYSA-N
Molecular Formula H3Mo12O40P
632

Phosphomolybdic acid, 20 wt% solution in ethanol

CAS: 51429-74-4 | H3Mo12O40P | 1825.40 g/mol

Linear Formula H3[P(Mo3O10)4]
Molecular Weight (g/mol) 1825.40
Color Green to Yellow
Physical Form Solution
Chemical Name or Material Phosphomolybdic acid
SMILES [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].OP(O)(O)=O
Merck Index 13, 7428
InChI Key FEFSFHGZSNHJEL-UHFFFAOYSA-N
Density 0.9400 g/mL
Name Note 20 wt% solution in ethanol
Percent Purity 19 to 21%
CAS 64-17-5
Health Hazard 3 GHS P Statement:
IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
Wear 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.
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 MFCD00149913
Health Hazard 2 GHS H Statement:
Causes severe skin burns and eye damage.
Highly flammable liquid and vapor.
Flash Point 5°C
Packaging Plastic Bottle
Health Hazard 1 GHS Signal Word: Danger
Synonym Molybdophosphoric acid
IUPAC Name phosphoric acid dodecamolybdenum hexatriacontaoxidandiide
Molecular Formula H3Mo12O40P
Formula Weight 1825.25
Specific Gravity 94%
633

Phosphomolybdic Acid, x-Hydrate, Crystal, BAKER ANALYZED™ A.C.S. Reagent, J.T. Baker™

CAS: 51429-74-4 Molecular Formula: H3Mo12O40P Molecular Weight (g/mol): 1825.40 MDL Number: MFCD00149913 InChI Key: FEFSFHGZSNHJEL-UHFFFAOYSA-N IUPAC Name: 12-Molybdophosphoric acid SMILES: [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].OP(O)(O)=O

CAS 51429-74-4
Molecular Weight (g/mol) 1825.40
MDL Number MFCD00149913
SMILES [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].OP(O)(O)=O
IUPAC Name 12-Molybdophosphoric acid
InChI Key FEFSFHGZSNHJEL-UHFFFAOYSA-N
Molecular Formula H3Mo12O40P
634

Metaphosphoric acid, stabilized

CAS: 37267-86-0 Molecular Formula: HO3P Molecular Weight (g/mol): 79.979 MDL Number: MFCD00011351 InChI Key: UEZVMMHDMIWARA-UHFFFAOYSA-N Synonym: metaphosphoric acid,meta-phosphoric acid,hydrogenphosphonate,m-phosphoric acid,phosphenic acid,unii-mtk99r3uv0,metaphosphoric acid hpo3,x-phosphate-group,phosphonate 1-,hydrogen phosphonate PubChem CID: 3084658 SMILES: OP(=O)=O

PubChem CID 3084658
CAS 37267-86-0
Molecular Weight (g/mol) 79.979
MDL Number MFCD00011351
SMILES OP(=O)=O
Synonym metaphosphoric acid,meta-phosphoric acid,hydrogenphosphonate,m-phosphoric acid,phosphenic acid,unii-mtk99r3uv0,metaphosphoric acid hpo3,x-phosphate-group,phosphonate 1-,hydrogen phosphonate
InChI Key UEZVMMHDMIWARA-UHFFFAOYSA-N
Molecular Formula HO3P
635

Fluosilicic acid, 25 wt.% aqueous solution

CAS: 16961-83-4 | F6H2Si | 144.091 g/mol

Linear Formula H2SiF6
Molecular Weight (g/mol) 144.091
Color Colorless
Physical Form Liquid
Chemical Name or Material Fluosilicic acid
SMILES [H+].[H+].F[Si-2](F)(F)(F)(F)F
InChI Key OHORFAFFMDIQRR-UHFFFAOYSA-P
Density 1.2700g/mL
PubChem CID 21863527
Percent Purity 19 to 20.6% (total fluorine)
CAS 7732-18-5
Health Hazard 3 GHS P Statement:
IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
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.
Wash face, hands and any exposed skin thoroughly after handling.
Do not breathe dust/fume/gas/mist/vapors/spray.

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 MFCD00036289
Health Hazard 2 GHS H Statement:
Causes severe skin burns and eye damage.
Packaging Plastic bottle
Health Hazard 1 Danger
Synonym hexafluorosilicic acid,fluorosilicic acid,dihydrogen hexafluorosilicate,silicate 2-, hexafluoro-, dihydrogen,hexafluorosilicon 2-; hydron,dihydrogen hexafluorosilanediuide,silicofluoridd,hexafluorosilic acid,hydrofluorosilic acid,kieselfluorwasserstoffsaure
TSCA TSCA
RTECS Number VV8225000
IUPAC Name hexafluorosilicon(2-);hydron
Molecular Formula F6H2Si
EINECS Number 241-034-8
Formula Weight 144.09
Specific Gravity 1.27
636

Fluosilicic Acid, 25%, Spectrum™ Chemical
SDP

CAS: 16961-83-4 Molecular Weight (g/mol): 144.08

CAS 16961-83-4
Molecular Weight (g/mol) 144.08
637

Diglycolic acid, 98%

CAS: 110-99-6 Molecular Formula: C4H6O5 Molecular Weight (g/mol): 134.09 MDL Number: MFCD00004309 InChI Key: QEVGZEDELICMKH-UHFFFAOYSA-N Synonym: diglycolic acid,2,2'-oxydiacetic acid,oxydiacetic acid,acetic acid, 2,2'-oxybis,oxybisacetic acid,oxydiethanolic acid,diglycolicacid,bis carboxymethyl ether,oxodiacetic acid,3-oxapentanedioic acid PubChem CID: 8088 IUPAC Name: 2-(carboxymethoxy)acetic acid SMILES: OC(=O)COCC(O)=O

PubChem CID 8088
CAS 110-99-6
Molecular Weight (g/mol) 134.09
MDL Number MFCD00004309
SMILES OC(=O)COCC(O)=O
Synonym diglycolic acid,2,2'-oxydiacetic acid,oxydiacetic acid,acetic acid, 2,2'-oxybis,oxybisacetic acid,oxydiethanolic acid,diglycolicacid,bis carboxymethyl ether,oxodiacetic acid,3-oxapentanedioic acid
IUPAC Name 2-(carboxymethoxy)acetic acid
InChI Key QEVGZEDELICMKH-UHFFFAOYSA-N
Molecular Formula C4H6O5
638

Boric Acid, Reagent Grade, ≥99.5%, Solstice

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
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
639

Boric Acid ACS AR Granular, Macron Fine 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

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
640

Boric acid, 99.5%, for analysis

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
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
641

Boric Acid, Granular, BAKER ANALYZED™ A.C.S. Reagent, J.T. Baker™

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
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
642

Adipic Acid, FCC, 99.6-101%, Spectrum™ Chemical
SDP

CAS: 124-04-9 Molecular Formula: C6H10O4 Molecular Weight (g/mol): 146.14 InChI Key: WNLRTRBMVRJNCN-UHFFFAOYSA-N IUPAC Name: hexanedioic acid SMILES: OC(=O)CCCCC(O)=O

CAS 124-04-9
Molecular Weight (g/mol) 146.14
SMILES OC(=O)CCCCC(O)=O
IUPAC Name hexanedioic acid
InChI Key WNLRTRBMVRJNCN-UHFFFAOYSA-N
Molecular Formula C6H10O4
643

Trichloroacetic acid, 5% w/v aq. soln.

CAS: 76-03-9 Molecular Formula: C2HCl3O2 Molecular Weight (g/mol): 163.378 MDL Number: MFCD00004177 InChI Key: YNJBWRMUSHSURL-UHFFFAOYSA-N Synonym: trichloroacetic acid,trichloroethanoic acid,aceto-caustin,trichloroacetic acid,acetic acid, trichloro,trichloressigsaeure,konesta,acide trichloracetique,acido tricloroacetico,amchem grass killer PubChem CID: 6421 ChEBI: CHEBI:30956 IUPAC Name: 2,2,2-trichloroacetic acid SMILES: C(=O)(C(Cl)(Cl)Cl)O

PubChem CID 6421
CAS 76-03-9
Molecular Weight (g/mol) 163.378
ChEBI CHEBI:30956
MDL Number MFCD00004177
SMILES C(=O)(C(Cl)(Cl)Cl)O
Synonym trichloroacetic acid,trichloroethanoic acid,aceto-caustin,trichloroacetic acid,acetic acid, trichloro,trichloressigsaeure,konesta,acide trichloracetique,acido tricloroacetico,amchem grass killer
IUPAC Name 2,2,2-trichloroacetic acid
InChI Key YNJBWRMUSHSURL-UHFFFAOYSA-N
Molecular Formula C2HCl3O2
644

Phosphoric Acid, BAKER ANALYZED™ A.C.S. Reagent, J.T. Baker™

CAS: 7664-38-2 Molecular Formula: H3O4P Molecular Weight (g/mol): 97.994 InChI Key: NBIIXXVUZAFLBC-UHFFFAOYSA-N Synonym: orthophosphoric acid,sonac,o-phosphoric acid,phosphorsaeure,acidum phosphoricum,evits,wc-reiniger,acide phosphorique,white,acido fosforico PubChem CID: 1004 ChEBI: CHEBI:26078 IUPAC Name: phosphoric acid SMILES: OP(=O)(O)O

PubChem CID 1004
CAS 7664-38-2
Molecular Weight (g/mol) 97.994
ChEBI CHEBI:26078
SMILES OP(=O)(O)O
Synonym orthophosphoric acid,sonac,o-phosphoric acid,phosphorsaeure,acidum phosphoricum,evits,wc-reiniger,acide phosphorique,white,acido fosforico
IUPAC Name phosphoric acid
InChI Key NBIIXXVUZAFLBC-UHFFFAOYSA-N
Molecular Formula H3O4P
645

o-Phosphoric Acid, 85% w/w, ACS, GR, MilliporeSigma™

CAS: 7664-38-2 Molecular Formula: H3O4P Molecular Weight (g/mol): 97.994 InChI Key: NBIIXXVUZAFLBC-UHFFFAOYSA-N Synonym: orthophosphoric acid,sonac,o-phosphoric acid,phosphorsaeure,acidum phosphoricum,evits,wc-reiniger,acide phosphorique,white,acido fosforico PubChem CID: 1004 ChEBI: CHEBI:26078 IUPAC Name: phosphoric acid SMILES: OP(=O)(O)O

PubChem CID 1004
CAS 7664-38-2
Molecular Weight (g/mol) 97.994
ChEBI CHEBI:26078
SMILES OP(=O)(O)O
Synonym orthophosphoric acid,sonac,o-phosphoric acid,phosphorsaeure,acidum phosphoricum,evits,wc-reiniger,acide phosphorique,white,acido fosforico
IUPAC Name phosphoric acid
InChI Key NBIIXXVUZAFLBC-UHFFFAOYSA-N
Molecular Formula H3O4P