X-Nico

unusual facts about Potassium-argon dating



Archibald Macallum

In 1901, he showed that the chromatin in cell nuclei contains iron, and in his early years at the University of Toronto he adapted measurement methods for a number of ions (chloride, potassium and phosphorus) for use with tissue and cell samples.

Croconic acid

Croconic acid and potassium croconate dihydrate were discovered by Leopold Gmelin in 1825, who named the compounds from Greek

Geography of Santa Maria, Bulacan

However, Silangan, Caypombo, Caysio, Manggahan, Santa Cruz, Tumana, San Gabriel and Pulong Buhangin are deficient in Potassium ranging from 0 ppm to 100 ppm.

Geology of Fujian

The Zhejiang-Fujian-Guandong volcanic rocks are mostly rhyolite and dacite rich in potassium, from Late Jurassic to Early Cretaceous.

Gold extraction

The solubility of gold in a water and cyanide solution was known by 1783 (Scheele), by Bagration in 1843 and Elsner in 1846 who recognized the necessity of oxygen in the process, (a method of exctraction by chlorination (Plattner) considered during 1848 proved uneconomical) this prior to the discovery of an economical method of treatment with potassium cyanide by J.S. MacArthur (with R. and, or, W. Forrest).

Green chemistry metrics

For example, inorganic reagents (such as potassium carbonate in a Williamson ether synthesis) are ignored as they are not incorporated into the final product.

Ischemic preconditioning

There have been many suggestions to what this might be, the sarcolemmal ATP-sensitive potassium channel, the mitochondrial ATP-sensitive potassium channel, the mitochondrial permeability transition pore, reactive oxygen species generation, chloride channels, the inward rectifier potassium ion channel and connexon 43 related channels.

Johannite

Johannite is a strong radioactive mineral with a calculated activity of 87,501,143 Bq/g (to the comparison: natural potassium: 31.2 Bq/g).

Josef Goubeau

Goubeau studied chemistry at the University of Munich starting from 1921 and attained a doctorate there 1926 on the atomic weight regulation of the potassiumin the group of Otto Hönigschmid under the supervision of Eduard Zintl.

KCNE1L

This gene encodes a membrane protein that has sequence similarity to the KCNE1 gene product, a member of the potassium channel, voltage-gated, isk-related subfamily.

KREEP

KREEP, an acronym built from the letters K (the atomic symbol for potassium), REE (Rare Earth Elements) and P (for phosphorus), is a geochemical component of some lunar impact breccia and basaltic rocks.

Lactobionic acid

Potassium lactobionate is added to organ preservation solutions such as Viaspan or CoStorSol to provide osmotic support and prevent cell swelling.

Loop of Henle

:Sodium (Na+), potassium (K+) and chloride (Cl-) ions are reabsorbed from the urine by secondary active transport by a Na-K-Cl cotransporter (NKCC2).

Lugol

Lugol's iodine, a solution of iodine in potassium iodide, named after J. G. A. Lugol.

MLC1

Furthermore, MLC1 has highest homology with the KCNA1 shaker-related voltage-gated potassium channel (Kv1.1).

Molokini

Potassium-argon dating by Yoshitomo Nishimitsu of Kyoto University indicates that Molokini erupted approximately 230,000 years ago.

Neutra

Neutra Phos, a powder formulation of sodium and potassium phosphate

Potassium bromide

The anticonvulsant properties of potassium bromide were first noted by Sir Charles Locock at a meeting of the Royal Medical and Chirurgical Society in 1857.

Potassium cyanide

A number of prominent persons were killed or committed suicide using potassium cyanide, including members of the Young Bosnia and members of the Nazi Party, such as Hermann Göring and Heinrich Himmler, World War II era British agents (using purpose-made suicide pills), computer scientist Alan Turing, and various religious cult suicides such as by the Peoples Temple and Heaven's Gate.

Potassium picrate

Potassium picrate was first prepared as impure in mid-17th century by Johann Rudolf Glauber by dissolving wood in nitric acid and neutralizing with potassium carbonate.

Potassium spatial buffering

In the study, optic nerve of Necturus was dissected to document the long-distance movement of potassium after the nerve stimulation.

Potassium sulfate

Potassium sulfate (K2SO4) has been known since early in the 14th century, and it was studied by Glauber, Boyle and Tachenius.

Potassium-ion battery

It is believed that potassium battery can replace lithium battery for large-scale energy storage because of its exceptional cycleability, as reported by the researchers of Northwestern University in Nature Communications.

Reverse osmosis

An example of this process is Dasani, which adds sodium chloride (salt) and potassium chloride to its water for "taste", according to the company.

Rhodizonic acid

Rhodizonic acid was discovered by Austrian chemist Johann Heller in 1837, by analyzing the products of heating a mixture of potassium carbonate and charcoal.

Safranin

The first aniline dye-stuff to be prepared on a manufacturing scale was mauveine, which was obtained by Sir William Henry Perkin by heating crude aniline with potassium bichromate and sulfuric acid.

Sensodyne

Depending on the product's active ingredient - Potassium Nitrate, Strontium Acetate, or NovaMin technology.

Stalag IX-C

Although its headquarters were located near Bad Sulza, between Erfurt and Leipzig in Thuringia, its sub-camps – Arbeitskommando – were spread over a wide area, particularly those holding prisoners working in the potassium mines, south of Mühlhausen.

Tetrahydroxy-1,4-benzoquinone

The dark purple and insoluble dipotassium salt K2C6H2O6 was prepared by Preisler and Berger in 1942, by oxidizing inositol with nitric acid and reacting the result with potassium carbonate in the presence of oxygen.

Tonalite-Trondhjemite-Granodiorite

It is widely accepted that most Archaean granitegreenstones are dominated by TTG, although Late Archaean terranes, such as in the Yilgarn Craton, are dominated by potassium-rich granitoid rocks that are derived through remelting of older felsic TTG-dominated crust.

Ultramafic rock

Serpentine soil is a magnesium rich, calcium, potassium and phosphorus poor soil that develops on the regolith derived from ultramafic rocks.


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