Kno3 Molecular Potassium Nitrate Powder Cas No 7757-79-1 Water Soluble

100% water soluble noncaking white potassium nitrate powder used as fertilizer in

agriculture 

►Description 

  POTASSIUM NITRATE is a white to dirty gray crystalline solid. Water soluble.

Noncombustible, but accelerates the burning of combustible materials. If large

quantities are involved in fire or the combustible material is finely divided an explosion

may result. May explode under prolonged exposure to heat or fire. Toxic oxides of

nitrogen are produced in fires. Used in solid propellants, explosives, fertilizers.

                                                                        Before 

                                                                     After 

►History of production

From mineral sources

      The earliest known complete purification process for potassium nitrate was

outlined in 1270 by the chemist and engineer Hasan al-Rammah of Syria in his

book al-Furusiyya wa al-Manasib al-Harbiyya (The Book of Military Horsemanship

and Ingenious War Devices). In this book, al-Rammah describes first the

purification of barud (crude saltpeter mineral) by boiling it with minimal water and

using only the hot solution, then the use of potassium carbonate (in the form of

wood ashes) to remove calcium and magnesium by precipitation of their

carbonates from this solution, leaving a solution of purified potassium nitrate, which

could then be dried. This was used for the manufacture of gunpowder and

explosive devices. The terminology used by al-Rammah indicated a Chinese origin

for the gunpowder weapons about which he wrote.

At least as far back as 1845, Chilean saltpeter deposits were exploited in Chile and

California, USA.

From caves

    A major natural source of potassium nitrate was the deposits crystallizing from

cave walls and the accumulations of bat guano in caves. Extraction is

accomplished by immersing the guano in water for a day, filtering, and harvesting

the crystals in the filtered water. Traditionally, guano was the source used in Laos

for the manufacture of gunpowder for Bang Fai rockets.

LeConte

     Perhaps the most exhaustive discussion of the production of this material is the

1862 LeConte text.He was writing with the express purpose of increasing

production in the Confederate States to support their needs during the American

Civil War. Since he was calling for the assistance of rural farming communities, the

descriptions and instructions are both simple and explicit. He details the "French

Method", along with several variations, as well as a "Swiss method". N.B. Many

references have been made to a method using only straw and urine, but there is no

such method in this work.

French method

     Niter-beds are prepared by mixing manure with either mortar or wood ashes,

common earth and organic materials such as straw to give porosity to a compost

pile typically 4 feet (1.2 m) high, 6 feet (1.8 m) wide, and 15 feet (4.6 m) long.The

heap was usually under a cover from the rain, kept moist with urine, turned often to

accelerate the decomposition, then finally leached with water after approximately

one year, to remove the soluble calcium nitrate which was then converted to

potassium nitrate by filtering through potash.

Swiss method

    LeConte describes a process using only urine and not dung, referring to it as the

Swiss method. Urine is collected directly, in a sandpit under a stable. The sand

itself is dug out and leached for nitrates which were then converted to potassium

nitrate using potash, as above.

From nitric acid

     From 1903 until the World War I era, potassium nitrate for black powder and

fertilizer was produced on an industrial scale from nitric acid produced using the

Birkeland–Eyde process, which used an electric arc to oxidize nitrogen from the air.

During World War I the newly industrialized Haber process (1913) was combined

with the Ostwald process after 1915, allowing Germany to produce nitric acid for

the war after being cut off from its supplies of mineral sodium nitrates from Chile.

►Specifications 

►Usage 

      Potassium nitrate is used in fertilizers as a source of nitrogen and potassium –

two of the macronutrients for plants. When used by itself, it has an NPK rating of

13-0-44.

►Packing 

25/50KG plastic pp bag or customized 

►Certificates 

►FAQ

Q:Can we visit your factory?

A: Yes. Welcome to visit at any time you like.

Q:How do you control the quality?

A: We will make samples before mass production, and after sample

approved, we'll begin mass production. Doing 100% inspection during

production, then do random inspection before packing.

Q: Is it possible to custom the labels with my own design?

A: Yes, and you just need to send us your drawings or artworks, then you

can get you want.

Q: Are you manufacture?

A: We have our own factory and can supply good quality products with

professional services.

Q: Are you a experienced supplier in this line?

A: Of course! We have engaged in this line for more than 20 years, and

have rich experience. Our products are competitive and popular all over

the world.

Q: Do you supply product report?

A: Yes. We'll give you product analysis report before shipping.