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
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L-(-)-Malic acid, 97%
CAS: 97-67-6 Molecular Formula: C4H6O5 Molecular Weight (g/mol): 134.087 MDL Number: MFCD00064213 InChI Key: BJEPYKJPYRNKOW-REOHCLBHSA-N Synonym: l-malic acid,l---malic acid,s-2-hydroxysuccinic acid,2s-2-hydroxybutanedioic acid,l--malic acid,apple acid,--malic acid,l-apple acid,s-malic acid,s-2-hydroxybutanedioic acid PubChem CID: 222656 ChEBI: CHEBI:30797 IUPAC Name: (2S)-2-hydroxybutanedioic acid SMILES: C(C(C(=O)O)O)C(=O)O
Selenous acid, 97%
CAS: 7783-00-8 Molecular Formula: H2O3Se Molecular Weight (g/mol): 128.98 MDL Number: MFCD00011331 InChI Key: MCAHWIHFGHIESP-UHFFFAOYSA-N Synonym: selenious acid,selenious acid h2seo3,monohydrated selenium dioxide,unii-f6a27p4q4r,selenium dioxide, monohydrated,ccris 5530,selenious acid usp,selenious acid,selenous acid,monohydrated selenium dioxide,selenium, reference standard solution PubChem CID: 1091 ChEBI: CHEBI:26642 IUPAC Name: selenous acid SMILES: O[Se](O)=O
Adipic Dihydrazide 99.0+%, TCI America™
CAS: 1071-93-8 Molecular Formula: C6H14N4O2 Molecular Weight (g/mol): 174.20 MDL Number: MFCD00007614 InChI Key: IBVAQQYNSHJXBV-UHFFFAOYSA-N Synonym: adipic dihydrazide,adipohydrazide,adipic acid dihydrazide,hexanedioic acid, dihydrazide,adipyl hydrazide,hexanediohydrazide,adipic acid, dihydrazide,adipodihydrazide,hexanedioic acid, 1,6-dihydrazide,unii-vk98i9yw5m PubChem CID: 66117 IUPAC Name: hexanedihydrazide SMILES: NNC(=O)CCCCC(=O)NN
L-(+)-Tartaric acid, 99%
CAS: 87-69-4 Molecular Formula: C4H6O6 Molecular Weight (g/mol): 150.09 MDL Number: MFCD00064207 InChI Key: FEWJPZIEWOKRBE-UHFFFAOYNA-N Synonym: l-tartaric acid,l-+-tartaric acid,l +-tartaric acid,2r,3r-2,3-dihydroxysuccinic acid,tartaric acid,2r,3r-2,3-dihydroxybutanedioic acid,r,r-tartaric acid,#NAME?,dextrotartaric acid,l-threaric acid PubChem CID: 444305 ChEBI: CHEBI:15671 IUPAC Name: (2R,3R)-2,3-dihydroxybutanedioic acid SMILES: OC(C(O)C(O)=O)C(O)=O
Tartronic acid, 97%
CAS: 80-69-3 Molecular Formula: C3H4O5 Molecular Weight (g/mol): 120.06 MDL Number: MFCD00004237 InChI Key: ROBFUDYVXSDBQM-UHFFFAOYSA-N Synonym: tartronic acid,hydroxymalonic acid,2-hydroxymalonic acid,propanedioic acid, hydroxy,tartronicacid,2-tartronic acid,hydroxypropanedioic acid,2-hydroxymalonate,malonic acid, hydroxy,hydroxymalonate PubChem CID: 45 ChEBI: CHEBI:16513 IUPAC Name: 2-hydroxypropanedioic acid SMILES: C(C(=O)O)(C(=O)O)O
Hydrochloric acid, pure, ca. 32% solution in water
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
Nitric Acid, 67-70%, OmniTrace Ultra, MilliporeSigma™
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
LabChem, Inc. Hydrochloric Acid, Certified, 0.500N ±0.005N (0.5M), LabChem™
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
Acetic acid, 99.6%, 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
D-(-)-Tartaric acid, 99%
CAS: 147-71-7 Molecular Formula: C4H6O6 Molecular Weight (g/mol): 150.09 MDL Number: MFCD00004238 InChI Key: FEWJPZIEWOKRBE-UHFFFAOYNA-N Synonym: d-tartaric acid,d---tartaric acid,2s,3s-2,3-dihydroxysuccinic acid,d--tartaric acid,d-threaric acid,--d-tartaric acid,2s,3s-2,3-dihydroxybutanedioic acid,--tartaric acid,s,s-tartaric acid,2s,3s---tartaric acid PubChem CID: 439655 ChEBI: CHEBI:15672 IUPAC Name: (2S,3S)-2,3-dihydroxybutanedioic acid SMILES: OC(C(O)C(O)=O)C(O)=O
Acetic Acid, 99.8%, for biochemistry
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
Ricca Chemical Company Sulfuric Acid, 25% (w/w), Ricca Chemical
CAS: 7732-18-5 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
Cyanuric acid, 99%
CAS: 108-80-5 Molecular Formula: C3H3N3O3 Molecular Weight (g/mol): 129.08 MDL Number: MFCD00082990 InChI Key: ZFSLODLOARCGLH-UHFFFAOYSA-N Synonym: cyanuric acid,isocyanuric acid,1,3,5-triazine-2,4,6-triol,trihydroxycyanidine,tricyanic acid,sym-triazinetriol,s-triazinetriol,1,3,5-triazine-2,4,6 1h,3h,5h-trione,pseudocyanuric acid,isocyanurate acid PubChem CID: 7956 ChEBI: CHEBI:38028 IUPAC Name: 1,3,5-triazinane-2,4,6-trione SMILES: O=C1NC(=O)NC(=O)N1
Formic acid, 85%
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
Acetic acid, ammonium salt, 98+%, for HPLC
CAS: 631-61-8 Molecular Formula: C2H7NO2 Molecular Weight (g/mol): 77.083 InChI Key: USFZMSVCRYTOJT-UHFFFAOYSA-N Synonym: ammonium acetate,acetic acid, ammonium salt,azanium acetate,ammoniumacetate,acetic acid ammonium salt,ammonium ethanoate,unii-rre756s6q2,aconh4,ch3coonh4,ch3co2nh4 PubChem CID: 517165 ChEBI: CHEBI:62947 IUPAC Name: azanium;acetate SMILES: CC(=O)[O-].[NH4+]