Potassium (K)
Discovered in 1807, potassium is the seventh most abundant metal. Potassium is not found free in nature, and most minerals that contain it are insoluble, making it difficult to obtain.
The most reactive and electropositive metal, it is the lightest after lithium. Potassium is soft and silvery, can be cut with a knife, rapidly oxidizes in air, and must be stored in a mineral oil such as kerosene. It decomposes in water to produce hydrogen and ignites spontaneously in air. Potassium has 17 isotopes, including one radioactive form.
The greatest demand for potassium is for fertilizers because it is essential for plant growth. Many potassium salts, including the hydroxide, nitrate, carbonate, chloride, chlorate, bromide, iodide, cyanide, sulfate, chromate, and dichromate forms, are also important.
Potassium, 98%, chunks, in mineral oil
CAS: 9-7-7440 Molecular Formula: K Molecular Weight (g/mol): 39.10 MDL Number: MFCD00133776 InChI Key: ZLMJMSJWJFRBEC-UHFFFAOYSA-N Synonym: kalium,potassium, metal,potassium, liquid alloy,unii-rwp5ga015d,rwp5ga015d,hsdb 698,monopotassium,potasio,mono-potassium,atom PubChem CID: 5462222 ChEBI: CHEBI:26216 IUPAC Name: potassium SMILES: [K]
Potassium, solid, 99% (metals basis)
CAS: 7440-09-7 Molecular Formula: K Molecular Weight (g/mol): 39.10 MDL Number: MFCD00133776 InChI Key: ZLMJMSJWJFRBEC-UHFFFAOYSA-N Synonym: kalium,potassium, metal,potassium, liquid alloy,unii-rwp5ga015d,rwp5ga015d,hsdb 698,monopotassium,potasio,mono-potassium,atom PubChem CID: 5462222 ChEBI: CHEBI:26216 IUPAC Name: potassium SMILES: [K]
Potassium, chunks, in mineral oil, 98%
CAS: 9-7-7440 Molecular Formula: K Molecular Weight (g/mol): 39.10 MDL Number: MFCD00133776 InChI Key: ZLMJMSJWJFRBEC-UHFFFAOYSA-N Synonym: kalium,potassium, metal,potassium, liquid alloy,unii-rwp5ga015d,rwp5ga015d,hsdb 698,monopotassium,potasio,mono-potassium,atom PubChem CID: 5462222 ChEBI: CHEBI:26216 IUPAC Name: potassium SMILES: [K]
Sigma Aldrich Potassium
MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.
Sigma Aldrich Potassium
MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.
Potassium cubes, 99.5% (metals basis), Thermo Scientific™
CAS: 9-7-7440 Molecular Formula: K Molecular Weight (g/mol): 39.10 MDL Number: MFCD00133776 InChI Key: ZLMJMSJWJFRBEC-UHFFFAOYSA-N Synonym: kalium,potassium, metal,potassium, liquid alloy,unii-rwp5ga015d,rwp5ga015d,hsdb 698,monopotassium,potasio,mono-potassium,atom PubChem CID: 5462222 ChEBI: CHEBI:26216 IUPAC Name: potassium SMILES: [K]