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Potassium Nitrate

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Potassium Nitrate. Kemal VATANSEVER 9-D 216. I n 1270 , by the chemist and engineer  Hasan al- Rammah I n his book  al- Furusiyya wa al- Manasib al- Harbiyya. Origin of . First the purification of  barud . The manufacture of gunpowder and explosive devices. - PowerPoint PPT Presentation
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{ Potassium Nitrate Kemal VATANSEVER 9-D 216
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Page 1: Potassium Nitrate

{Potassium Nitrate

Kemal VATANSEVER9-D 216

Page 2: Potassium Nitrate

In 1270, by the chemist and engineer Hasan al-Rammah

In his book al-Furusiyya wa al-Manasib al-Harbiyya

Origin of

Page 3: Potassium Nitrate

First the purification of barud. The manufacture of gunpowder and

explosive devices. From a Chinese origin for the

gunpowder weapons about the book.  Potassium nitrate was called: "Chinese snow" by Arabs "Chinese salt" by Iranians.

Page 4: Potassium Nitrate

It attend the world by the usage in gunpowder.

Highly important in19th century. From the end of World War Almost all potassium nitrate is used as a

fine chemical It is produced from basic potassium salts

and nitric acid.

Development

Page 5: Potassium Nitrate

NH4NO3 (aq) + KOH (aq) → NH3 (g) + KNO3 (aq) + H2O (l)

(Too dangerous) NH4NO3 (aq) + KCl (aq) → NH4Cl (aq) + KNO3 (aq)(Too dangerous) KOH (aq) + HNO3 → KNO3 (aq) + H2O (l)(Highly exothermic)

Production

Page 6: Potassium Nitrate

Molar mass 101.1032 g/mol(101) Odor Odorless Melting point 334 °C Boiling point 400 °C

(Decomposition) Acidity(pH) 7(Nearly Neutral)

Properties

Page 7: Potassium Nitrate

Potassium nitrate has an orthorhombic crystal structure at room temperature.

It transforms to a trigonal system at 129 °C.

Above 560 °C, decomposition takes places by generating potassium nitrite and oxygen:

2 KNO3 → 2 KNO2 + O2

Structure Changes According to States

Page 8: Potassium Nitrate

Fertilizer A source of nitrogen and potassium for plants.

Oxidizer One of the three components of black powder,

with powdered charcoal (carbon) and sulfur. In combination with other fuels, such as, with

sugars in rocket candy . Fireworks, Smoke bombs Pre-rolled cigarettes for maintaining an even

burn of the tobacco.

Usage

Page 9: Potassium Nitrate

Food Preservation For preservation of salted meat since

the Middle Ages Due to inconsistent results compared to

more modern nitrate and nitrite compounds it is less used.

Page 10: Potassium Nitrate

Pharmacology In toothpastes for sensitive teeth and

increasing rate of use. To relieve asthma symptoms again in

toothpastes. Treating of asthma and arthritis.

Page 11: Potassium Nitrate

(Potassium Nitrate)

(Hydrogen Chloride)

Precipitation Reaction

Experiment

Page 12: Potassium Nitrate

+ +

Potassium Nitrate + Hydrochloric Acid Potassium Chlorine + Nitric Acid

During the experiment

Page 13: Potassium Nitrate

Thanks for Listening

Let’s Do the Experiment


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