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]
Aqua Solutions Conductivity Standard 100 umhos @ 25°C NIST Traceable (4L)
Conductivity Standard 100 umhos @ 25°C NIST Traceable (4L)
Alkali Scientific Penicillin G Potassium Salt, 500 G
Penicillin G Potassium Salt is a potent antibiotic widely used in microbiological research and clinical applications to combat infections caused by gram-positive bacteria. The 500 g powdered formulation is ideal for large-scale laboratory applications, where Penicillin G is needed in high concentrations. It is used to prepare solutions for antimicrobial susceptibility testing, bacterial growth inhibition studies, and resistance research. The compound works by interfering with bacterial cell wall synthesis, leading to bacterial cell death. Penicillin G Potassium is a valuable tool for studying the effectiveness of antibiotics in treating resistant bacterial strains and for testing new antimicrobial compounds in a laboratory setting.
Alkali Scientific Penicillin G Potassium Salt, 25 G
Penicillin G Potassium Salt, 25 g, is an antibiotic powder used to treat infections caused by gram-positive bacteria. The potassium form of Penicillin G is commonly employed in laboratory settings for testing antibacterial properties and researching microbial resistance. Penicillin G works by targeting bacterial cell wall synthesis, making it effective in disrupting bacterial growth and reproduction. This formulation is widely used in microbiological studies to investigate the effects of Penicillin on bacterial cultures, evaluate susceptibility, and assess resistance mechanisms. The 25 g package is ideal for preparing antimicrobial testing solutions or for larger-scale studies in pharmaceutical research and clinical applications.
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]