Potassium Collection

Paris Salpetriere
The manufactory of saltpeter (potassium nitrate) used to make gunpowder : in the 19th century it will become one of Pariss leading hospitals, associated with Charcot etc

Production of Salpetre (Nitre, Potassium Nitrate, or KN03). Nitre beds, heaps of manure mixed with chalky earth
540747 Production of Salpetre (Nitre, Potassium Nitrate, or KN03). Nitre beds, heaps of manure mixed with chalky earth. These were watered with urine and manure water

Crystallization of Saltpetre (Nitre, Potassium Nitrate, or KN03, 1574 (engraving)
540753 Crystallization of Saltpetre (Nitre, Potassium Nitrate, or KN03, 1574 (engraving); (add.info.: Crystallization of Saltpetre (Nitre, Potassium Nitrate, or KN03)

Checking the quality of Saltpetre (Nitre, Potassium Nitrate, or KN03). Saltpetre is the principal ingredient in
540750 Checking the quality of Saltpetre (Nitre, Potassium Nitrate, or KN03). Saltpetre is the principal ingredient in gunpowder, and is still used in the preservation of some foods

Lob Nor in 1987 and 2020
Color satellite image of Lob Nor in 1987 and 2020

Lob Nor in 2020
Color satellite image of Lob Nor in 2020

Lob Nor in 1987
Color satellite image of Lob Nor in 1987

Spectra of Various Sources of Light (colour litho)
5211386 Spectra of Various Sources of Light (colour litho) by English School, (19th century); Private Collection; (add.info.: Spectra of Various Sources of Light)

A Photographic Positive 1853
A mother seeks assistance in regards to her daughter accidentally spilling photographic chemicals, in particular staining her face from nitrate of silver

Chemistry (colour litho)
2795452 Chemistry (colour litho) by French School, (19th century); Private Collection; (add.info.: Chemistry. Double page illustration contained in one of the series of Les Recreations Instructives)

Elkingtons Electro-plate Factory, Birmingham 1844
The silver deposit room at Elkingtons Electro-plate Factory, Birmingham. The objects to be plated are connected to an electrical cable (routed across the ceiling)

Method of refining saltpeter for making gunpowder
Method of refining saltpeter (potassium nitrate) for making gunpowder. circa 18th century

Recycled leather being delivered by lorry to make potash, Sundarbans, Ganges Delta, West Bengal, India, February

Leopold Gmelin
LEOPOLD GMELIN German chemist at Heidelberg who discovered potassium ferricyanide, henceforth known as Gmelins Salt : author of standard chemistry textbook Date: 1788 - 1853

Fumaroles in potassium salt deposits, Dallol geothermal area, Danakil Depression
February 1, 2011 - Dallol geothermal area, fumaroles in potassium salt deposits formed by brine hot springs, Danakil Depression, Ethiopia

Potassium salt crust, Dallol geothermal area, Danakil Depression, Ethiopia
January 27, 2011 - Dallol geothermal area, potassium salt crust formed by brine hot springs, Danakil Depression, Ethiopia

Dallol geothermal area, small geyser in brine hot springs, Danakil Depression, Ethiopia
February 11, 2008 - Dallol geothermal area, small geyser in brine hot springs, Danakil Depression, Ethiopia

Hot spring in yellow brine lake, Dallol geothermal area, Danakil Depression, Ethiopia
February 11, 2008 - Dallol geothermal area, hot spring in yellow brine lake containing potassium salts, Danakil Depression, Ethiopia

Dallol geothermal area, saline hot spring, Danakil Depression, Ethiopia
January 27, 2011 - Dallol geothermal area, saline hot spring, Danakil Depression, Ethiopia

Small geyser amongst potassium salt deposits, Dallol geothermal area, Danakil Depression
January 27, 2011 - Dallol geothermal area, small geyser amongst potassium salt deposits formed by brine hot springs, Danakil Depression, Ethiopia

Dallol geothermal area, Danakil Depression, Ethiopia
January 27, 2011 - Dallol geothermal area, terraces, potassium salt deposits formed by brine hot springs, Danakil Depression, Ethiopia

Potassium salt deposits, Dallol geothermal area, Danakil Depression, Ethiopia
February 11, 2008 - Dallol geothermal area, deposits of potassium salts formed by evaporation of water from brine hot springs, Danakil Depression, Ethiopia

Dallol geothermal area, brine hot springs, Danakil Depression, Ethiopia
February 10, 2008 - Dallol geothermal area, brine hot springs, Danakil Depression, Ethiopia

Casellis pantelegraph: At the sending station the dispatch was written or drawn on sheet of metallized paper in thick insulating ink and placed on curved plate

Crystallization of Saltpetre (Nitre, Potassium Nitrate, or KN03. Saltpetre is the principal ingredient in gunpowder, and is still used in the preservation of some foods)

Production of Salpetre (Nitre, Potassium Nitrate, or KN03). Nitre beds, heaps of manure mixed with chalky earth. These were watered with urine and manure water

Checking the quality of Saltpetre (Nitre, Potassium Nitrate, or KN03). Saltpetre is the principal ingredient in gunpowder, and is still used in the preservation of some foods

Hydrochloric acid added to potassium, in a glass flask

Solutions of potassium and iodide in water and solution of lead nitrate in water being mixed together, turning yellow and forming a lead iodide

Potassium reacting and bursting into flames in a bowl of water

A half-peeled banana and three banana slices

Sliced oranges

Whole banana, courgette and carrot, close up

top view of tangerine

Musa sp. Banana, close up

Drift conveyor in a potash mine
Potash mine. Workers next to a drift conveyor in a potash mine. This is the means of transporting mined rocks from the work face

Access tunnel in a potash mine
Potash mine. View along an access tunnel of a potash mine. Potash consists of potassium salts, mainly chloride, that are sequentially deposited in inland marine environments along with common salt

Boring machine in a potash mine
Potash mine. A tunnel boring machine in a potash mine. The machine combined cutting teeth that break the face of the deposit with a set of helical blades that pull the rock toward the drift conveyor

Miners at the end of a shift
Potash mine. Miners leaving a potash mine at the end of a shift. Photographed in Belarus

Vacuum crystallisers at potash factory C015 / 5868
Potash production. A worker walks between two vacuum crystallisation tower at a plant producing potash. These are used to crystallise a solution of potash to remove impurities

Gobbinsite C016 / 5647
Gobbinsite (hydrated sodium potassium calcium aluminium silicate). Specimen found near Black Cave, County Antrim, Northern Ireland, UK

Large voltaic pile, 19th century C016 / 3680
Voltaic pile. Part of a large voltaic pile made by Sir Humphrey Davy in 1808. Seen here is a trough containing 50 zinc plates. These would have been filled with dilute sulphuric acid

Davys potassium apparatus
Discovery of potassium. The apparatus used by Sir Humphrey Davy in 1807 to isolate potassium metal from caustic potash, or potassium hydroxide

Potassium channel molecule. Molecular model of a KcsA potassium ion (K+) channel molecule from Streptomyces lividans bacteria

Potassium channel molecule C013 / 8878
Potassium channel molecule. Computer model showing the secondary structure of a KcsA potassium ion (K+) channel molecule from Streptomyces lividans bacteria

Muscovite C013 / 6645
Muscovite, a variety of mica, is a silicate mineral of aluminium and potassium. It is found in metamorphic rocks, like gneiss

Gobbinsite comprises of (hydrated sodium potassium calcium aluminum silicate) and derives from the zeolite group. Specimen found nr. Black Cave, Island Magee, Co. Antrim

Orthoclase (potassium aluminum silicate) is a major granite forming mineral. Specimen from Brevik, Norway

All Professionally Made to Order for Quick Shipping

"Unveiling the Power of Potassium: From Paris Salpetriere to Dallol Geothermal Area" Step into the world of potassium, a chemical element that has left an indelible mark on various fields throughout history. It all began in Paris Salpetriere, where Humphry Davy, an English chemist, first isolated this remarkable element in 1807. Little did he know that his discovery would revolutionize multiple industries. Initially used in the method of refining saltpeter for making gunpowder, potassium soon found its way into scientific exploration. Spectra of Various Sources of Light captured its vibrant essence through a mesmerizing color lithograph. In 1853, A Photographic Positive showcased potassium's versatility and potential applications. Chemistry enthusiasts marveled at Elkingtons Electro-plate Factory in Birmingham during 1844 as they witnessed the transformative power in electroplating processes. Leopold Gmelin further expanded our knowledge by delving deep into this essential element's properties and compounds. Potassium's impact extended beyond laboratories and factories; it even played a role in sustainable practices. Recycled leather being delivered by lorry to make potash exemplified how we can harness natural resources while minimizing waste—an inspiring sight from Sundarbans, Ganges Delta, West Bengal. However, not all stories surrounding they were uplifting. Syphilis symptoms on the body served as a stark reminder that this element could also be associated with disease and affliction—a testament to its complex nature. Yet amidst these tales lies breathtaking beauty—potassium salt deposits glistening under the scorching sun at Dallol geothermal area within Ethiopia's Danakil Depression. These awe-inspiring formations remind us of nature's ability to create wonders even within extreme conditions. From chemistry labs to industrial marvels and natural landscapes alike, potassium continues to captivate our imagination with its multifaceted character.