Potasse naturel biography

Product Description:

Potassium Magnesium Sulphate is white or off-white crystal powder or granule. It is a kind of natural multi-element potassium fertilizer. In addition to potassium, sulfur and magnesium, it also contains calcium, silicon, boron, iron, zinc and other elements. It is weakly alkaline, especially suitable for acidic soil and can be used as base fertilizer, topdressing and foliar fertilizer. Besides, it is suitable for many crops such as rice, corn, peanut, tobacco, potato, fruit, vegetable, etc.

Advantages:

• A pure natural multi-element potassium fertilizer for all crops especially in organic agriculture.
• It is easily absorbed by crops and high utilization rate because of pure natural liquid raw material and no any chemical reaction when producing.
• 100% natural water soluble fertilizer because the raw material comes from the liquid mines instead of solid mines.
• Provide the comprehensive ingredients for crops because of the secondary elements of magnesium comparing to traditional potassium sulphate.
• It can be used as base fertilizer, topdressing and foliar fertilizer and the raw material of potassium fertilizer for producing compound and BB fertilizer.

Guaranteed Specifications:GB/T 20934-2018

Packaging:

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Transcript :

Chemistry in its element: potassium

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You're listening to Chemistry in its element brought to you by Chemistry World, the magazine of the Royal Society of Chemistry.

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Chris Smith

Hello, this week the story of the first alkaline metal ever isolated, why it's an alkaline metal at all and why its symbol begins with the letter K. Here's Peter Wothers.

Peter Wothers

Potassium - the only element named after a cooking utensil. It was named in 1807 by Humphry Davy after the compound from which he isolated the metal, potash, or potassium hydroxide.

An extract from the 1730s by the Dutch chemist Herman Boerhaave describes how potash got its name:

"Potas or Pot-ashes is brought yearly by the Merchant's Ships in great abundance from Coerland (now part of Latvia and Lithuania), Russia, and Poland. It is prepared there from the Wood of green Fir, Pine, Oak, and the like, of which they make large piles in proper Trenches, and burn them till they are reduced to Ashes... These ashes are then dissolved in boiling Water, and when the Liquor at top, which contains the Salt, is depurated, i.e. freed from impurities, by standing quiet, it is poured off clear. This, then, is immediately put into large copper Pots, and is there boiled for the space of three days, by which means they procure the Salt they call Potas, (which signifies Pot-Ashes) on account of its being thus made in Pots.

Even earlier in the 16th Century, Conrad Gesner tells us that "Of the hearbe called Kali, doe certayne prepare a Salt"

He describes this plant, Kali whose Latin name is Salsola kali but is more commonly known as Saltwort:

"Kali is of two Cubites of heygth, hauing no prickles or thornes, & is sometymes very red, saltye in taste, with a certayne vngratefull smell, found & gathered in saltie places: out of which, the Salt of Alkali maye be purchased"

His method of production of this Salt of Alkali is pretty similar to that descr

Salt mixture

Not to be confused with pottage.

For other uses, see Potash (disambiguation).

Potash (POT-ash) includes various mined and manufactured salts that contain potassium in water-soluble form. The name derives from pot ash, plant ashes or wood ash soaked in water in a pot, the primary means of manufacturing potash before the Industrial Era. The word potassium is derived from potash.

Potash is produced worldwide in amounts exceeding 71.9 million tonnes (~45.4 million tonnes K₂O equivalent) per year as of 2021, with Canada being the largest producer, mostly for use in fertilizer. Various kinds of fertilizer-potash constitute the single greatest industrial use of the element potassium in the world. Potassium was first derived in 1807 by electrolysis of caustic potash (potassium hydroxide).

Terminology

Potash refers to potassium compounds and potassium-bearing materials, most commonly potassium carbonate. The word "potash" originates from the Middle Dutchpotaschen, denoting "pot ashes" in 1477. The old method of making potassium carbonate (K
₂CO
₃) was by collecting or producing wood ash (the occupation of ash burners), leaching the ashes, and then evaporating the resulting solution in large iron pots, which left a white residue denominated "pot ash". Approximately 10% by weight of common wood ash can be recovered as potash. Later, "potash" became widely applied to naturally occurring minerals that contained potassium salts and the commercial product derived from them.

The following table lists a number of potassium compounds that have "potash" in their traditional names:

History

Origin of potash ore

Most of the world reserves of potassium (K) were deposited as sea water in ancient inland oceans. After the water evaporated, the potassium salts crystallized into beds of potas

Use of Potassium by organisms

Potassium is the main intracellularion for all types of cells, while having a major role in maintenance of fluid and electrolyte balance. Potassium is necessary for the function of all living cells and is thus present in all plant and animal tissues. It is found in especially high concentrations within plant cells, and in a mixed diet, it is most highly concentrated in fruits. The high concentration of potassium in plants, associated with comparatively very low amounts of sodium there, historically resulted in potassium first being isolated from the ashes of plants (potash), which in turn gave the element its modern name. The high concentration of potassium in plants means that heavy crop production rapidly depletes soils of potassium, and agricultural fertilizers consume 93% of the potassium chemical production of the modern world economy.

The functions of potassium and sodium in living organisms are quite different. Animals, in particular, employ sodium and potassium differentially to generate electrical potentials in animal cells, especially in nervous tissue. Potassium depletion in animals, including humans, results in various neurological dysfunctions. Characteristic concentrations of potassium in model organisms are: 30–300 mM in E. coli, 300 mM in budding yeast, 100 mM in mammalian cell and 4 mM in blood plasma.

Function in plants

See also: Potassium deficiency (plants)

The main role of potassium in plants is to provide the ionic environment for metabolic processes in the cytosol, and as such functions as a regulator of various processes including growth regulation. Plants require potassium ions (K) for protein synthesis and for the opening and closing of stomata, which is regulated by proton pumps to make surrounding guard cells either turgid or flaccid. A deficiency of potassium ions can impair a plant's ability to