#Fluorine reactivity series#
#Fluorine reactivity crack#

Fluorochlorohydrocarbons are used extensively in air conditioning and in refrigeration.ДЇluorides are often added to toothpaste and, somewhat controversially, to municipal water supplies to prevent dental cavities. Fluorides are compounds that combine fluoride with some positively charged counterpart.ДЄtomic fluorine and molecular fluorine are used for plasma etching in semiconductor manufacturing, flat panel display production and MEMs fabrication.ДЇluorine is indirectly used in the production of low friction plastics such as teflon and in halons such as freon, in the production of uranium. In aqueous solution, fluorine commonly occurs as the fluoride ion F. It is so reactive that glass, metals, and even water, as well as other substances, burn with a bright flame in a jet of fluorine gas. Fluorine readily forms compounds with most other elements, even with the noble gases krypton, xenon and radon.

Separation and Concentration Purification RequestДЇluorine - F Chemical properties of fluorine - Health effects of fluorine - Environmental effects of fluorineДЇluorine is an univalent poisonous gaseous halogen, it is pale yellow-green and it is the most chemically reactive and electronegative of all the elements.

Plant Inspection & Process Optimalisation.

At higher temperatures platinum crucibles would be needed, but the eutectic electrolysis should have a temperature low enough that platinum isn't required. Nickel and Monel crucibles, using copper gaskets, are compatible with the fluorine gas.

The eutectic melt and electrolysis will need to be carried out in a suitable container.

Teflon is also a excellent material for low temperature gaskets. This issue can be mitigated at lower temperatures by coating the inside of metal pipes with Teflon.

#Fluorine reactivity crack#

The gas is highly reactive and tends to cause stress crack corrosion in many kinds of metal piping. Fluorine, like other elements, is more reactive in its unionized state.

When the fluoride salt is put through electrolysis, the neutral charge of the ions is restored and fluorine gas is produced.

The system used to carry out any reaction must be well suited and as inert as possible towards the reactants. You can help Lunarpedia by expanding or correcting it. This section of the article is incomplete or needs more detail.

Lower temperature requirements result in a lower energy input and power savings which can be used for other life support functions. While a far more complex reaction sequence, the primary benefit of the HF acid leach system is much lower reaction temperatures. Fluorine is recovered from residual Mg F and Ca F 2 by reaction with K 2 O. Tetrafluorosilane produced by this process is reduced to silicon by a plasma reduction stage and the fluorine salts are reduced to metals by reaction with metallic potassium to form potassium fluoride, K F, the original starting material). In his proposal the fluorine is brought to the moon in the form of potassium fluoride, and is liberated from the salt by electrolysis in a eutectic salt melt. Landis of NASA's John Glenn Research Center has proposed that the use of the fluoride reaction sequence could be a method by which processing lunar materials could be done to produce silicon as well as iron, aluminum, and the basic oxide components of glass, which could be used in manufacturing, as well as producing oxygen. Hence, in principle, the process chemistry does not require finding any particular mineral source, or beneficiation of the soil to enhance the content of a particular mineral. The fluorine reaction has the advantage that, since fluorine is more electronegative than oxygen, fluorine will displace oxygen from any composition of lunar rock. In a variant version of the process, hydrofluoric acid, rather than gaseous fluorine, is used to attack the lunar material. The fluoride salts are then separated into fluorine and reduced metals by electrolysis. The fluorine attacks the oxides, liberating oxygen and producing fluoride salts. In the basis process, fluorine is reacted with the lunar material at elevated temperature. It is a form of In Situ Resource Utilization.

#Fluorine reactivity series#

You can help Lunarpedia by expanding or correcting it.ДЇluorine reaction refers to a series of chemical reactions intended to produce oxygen (and possibly other materials) by the reduction of lunar regolith. This article is incomplete or needs more information.