Bases
Bases of various chemical compositions, pH values, purities, reagent grades, and quantities suited for a wide variety of laboratory applications. Products are available in solid and liquid forms.
Bases are usually thought of as the chemical opposite of acids. They are commonly defined as compounds that form aqueous solutions that taste bitter, have a high pH (>7), cause litmus paper to turn blue, are slippery to the touch, and react with acids to form water and salts.
In the laboratory, bases are used as reagents or catalysts in many chemical reactions, and some are great conductors of electricity. In an industry setting, bases are used in many applications such as the manufacture of soap, paper, bleaching powder, and the synthetic fiber rayon.
Chemically, bases can be classified as:
- Arrhenius, substances that produce hydroxide (OH−) ions in aqueous solutions, and include sodium hydroxide (lye or caustic soda), potassium hydroxide (or caustic potash), and ammonium hydroxide (or aqua ammonia) Brønsted-Lowry, substances such as ammonia (NH3) that can accept a proton or hydrogen ion
- Lewis, compounds such as ammonia, alkyl or aryl amines, and pyridines and pyrimidines that are electron pair donors
NOTE: A Lewis base is also a Brønsted-Lowry base, but a Lewis acid is not necessarily also a Brønsted-Lowry acid.
Ammonium hydroxide, for HPLC, 35% solution in water
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonium hydroxide,ammonia water,ammonia aqueous,aquammonia,aqua ammonia,ammonia, aqua,household ammonia,ammonium hydroxide solution,ammonia, monohydrate,ammonium hydroxide nh4 oh PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate SMILES: N.O
Potassium Hydroxide Solution, 45%, for HPLC, Solstice
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.11 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: potassium hydroxide,caustic potash,potash lye,potassium hydrate,hydroxyde de potassium,potassa,potasse caustique,potassium hydroxide k oh,potassium hydroxide solution,caswell no. 693 PubChem CID: 14797 ChEBI: CHEBI:32035 SMILES: [OH-].[K+]
Ammonium Hydroxide, TraceGrade, 20-22%, Spectrum™ Chemical
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N IUPAC Name: amine hydrate SMILES: N.O
Ammonium Hydroxide, Ultratrace, 20-22%, Spectrum™ Chemical
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N IUPAC Name: amine hydrate SMILES: N.O
Potassium Phosphate Monobasic, Supelco
For HPLC LiChropur™
Sodium hydroxide solution, Solstice
CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 39.997 MDL Number: MFCD00003548 InChI Key: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC Name: sodium;hydroxide SMILES: [OH-].[Na+]
Ammonia, 2M solution in methanol, AcroSeal™
CAS: 7664-41-7 | H3N | 17.03 g/mol
Sigma Aldrich Fine Chemicals Biosciences Sodium hydroxide puriss. p500G
Sodium hydroxide (NaOH) is an inorganic base. It participates in the oxidation of glycerol catalyzed by Au/charcoal or Au/graphite. It also participates in solvent-free aldol condensation reaction.
Sigma Aldrich Fine Chemicals Biosciences Sodium hydroxide ACS reage500G
Sodium hydroxide (NaOH) also known as caustic soda is a water soluble inorganic base with a wide range of industrial application such as titration disSOLUTIONon testing and in impinger to remove acidic gases. It participates in the oxidation of glycerol catalyzed by Au/charcoal or Au/graphite. It participates in solvent-free aldol condensation reaction.
Sigma Aldrich Fine Chemicals Biosciences Potassium hydroxide, 1310-58-3, MFCD00003553, 1 KG
Linear Formula: KOH, Molecular Weight: 56.11, reagent grade, 90%, flakes, Synonym: Caustic potash. Potassium hydroxide (KOH) was used in the following processes: Quantification of glutathione (GSH) and glutathione disulfide (GSSG) in biological samples by HPLC. Preparation of buffer for use in the Investigation of seed fatty acid (FA) composition, protein, oil and sugar content.
Medchemexpress LLC Magnesium hydroxide | 1309-42-8 | 99% | 100 G
Magnesium hydroxide is a biochemical agent primarily used as a non-absorbable antacid for acidic digestive diseases. It appears as a white to off-white solid.
- Biochemical agent
- Non-absorbable antacid
- Treats acidic digestive diseases
- White to off-white solid appearance
- Stable for 3 years at room temperature (solid)
- Stable for 2 years at -80°C or 1 year at -20°C (in solvent)
Medchemexpress LLC Magnesium hydroxide | 1309-42-8 | MFCD00011104 | 99.1% | 250 G
Magnesium hydroxide, 99%(KT) is a biochemical agent primarily used as a non-absorbable antacid for treating acidic digestive diseases. It is supplied as a white to off-white solid.
- Used to treat acidic digestive diseases
- Non-absorbable antacid
- Purity of 99.1%
- Available in solid form
- White to off-white appearance
- Store at room temperature for 3 years
- In solvent, store at -80°C for 2 years or -20°C for 1 year
Medchemexpress LLC Palladium hydroxide | 12135-22-7 | MFCD00064599 | >97.0% | 140.43 g/mol | Pd(OH)2 | 5 G
Palladium hydroxide on activated carbon (20% loading, wetted with approximately 55% water) is a supported palladium catalyst supplied as a wet solid for laboratory hydrogenation and reduction reactions. It is typically supplied in small gram quantities and is intended for research use.
- 20% palladium hydroxide on activated carbon, support wetted with approximately 55% water.
- Used as a heterogeneous hydrogenation and reduction catalyst.
- Form: wet solid, light brown to black, suitable for small-scale laboratory use.
- Purity: ≥97.0%.
- CAS number: 12135-22-7; chemical formula: Pd(OH)2; molecular weight: 140.43 g/mol.
- Storage: store at room temperature; in solvent: -80°C for 2 years, -20°C for 1 year.
Sigma Aldrich Fine Chemicals Biosciences Sodium hydroxide ACS reage25KG
Sodium hydroxide (NaOH) also known as caustic soda is a water soluble inorganic base with a wide range of industrial application such as titration, dissolution testing and in impinger to remove acidic gases. It participates in the oxidation of glycerol catalyzed by Au/charcoal or Au/graphite. It participates in solvent-free aldol condensation reaction.