risks of high potassium

Group 16 (VIA) Oxygen and Sulphur..

It was observed by Fujino (1967) that opening of stomata occurs due to the influx of K + ions into the guard cells. The source of K + ions are the neighbouring subsidiary and epidermal cells, there by increasing the concentration from 50mM to 300mM in guard cells. The increase in K + ion c..

Metals have high melting and boiling point. Tungsten has the highest melting point where as silver has low boiling point. Sodium and potassium have low melting point..

Any of the above mentioned methods could be used to prepare oxygen in the laboratory. Mercuric and silver oxides are not used for the preparation of oxygen, as they are very expensive. For the laboratory preparation of oxygen from any of the compounds like lead dioxide, trilead tetroxide, pota..

Hydrogen can be prepared from cold water, steam, acids and alkalis. From cold water Highly electropositive metals like potassium, calcium and sodium combine with cold water, even ice-cold water to give their respective hydroxides and hydroge..

"The extraction of certain metals from their ores by the process of electrolysis is called electrometallurgy." Certain metal oxides are highly stable and so cannot be reduced by conventional reducing agents like coke, carbon monoxide or hydrogen. They are extracted from their oxides or sa..

The common name of sodium nitrate is "Chile salt Petre". It is found in large quantity in Chile in South America. It can be prepared by treating the oxide, hydroxide, carbonate or hydrogen carbonate salts of sodium with nitric acid. It is a colorless crystalline solid, highly soluble in ..

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Since all gases form cathode rays, it means that all atoms contain electrons. As the cathode ray particles were negatively charged, an electron was also carried a negative charge. The following processes were also found to emit electrons: a) The action of heat on certain metals. b) The action of ul..

Introduction - The plants upon which we depend for the food we eat, and for the oxygen we breathe, depend in turn upon the soil. A good soil supplies the plants with the mineral elements they use. Vigorous, highly productive plants can be grown in solutions of fertilizer minerals in the a..