Comments by "Biały" (@Bialy_1) on "Angela Collier " channel.

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  5. When looking for scientific information about something on Wikipedia, it is often a good idea to switch to other languages ​​and use Google Translate. "Although rubidium is inferior to cesium in a number of areas of application , this rare alkali metal plays an important role in modern technologies. The following main areas of rubidium application can be noted: catalysis , electronic industry, special optics, nuclear industry, medicine (its compounds have normothymic properties). Rubidium is used not only in pure form, but also in the form of a number of alloys and chemical compounds. It forms amalgams with mercury and alloys with gold, iron, cesium, sodium and potassium, but not lithium (although rubidium and lithium are in the same group). Rubidium has a good raw material base, more favorable than for cesium. The scope of rubidium application is expanding due to its increased availability. The isotope rubidium-86 is widely used in gamma flaw detection, measuring equipment, and in sterilization of medicines and food products. Rubidium and its alloys with cesium are a very promising coolant and working medium for high-temperature turbo units (in this regard, rubidium and cesium have acquired great importance in recent years, and the extreme high cost of metals is fading into the background in relation to the possibilities of sharply increasing the efficiency of turbo units, and therefore reducing fuel costs and environmental pollution). The most widely used coolants for rubidium-based systems are ternary alloys: sodium - potassium rubidium, and sodium-rubidium cesium . In catalysis, rubidium is used in both organic and inorganic synthesis. The catalytic activity of rubidium is used primarily for refining oil into a number of important products. Rubidium acetate , for example, is used to synthesize methanol and a number of higher alcohols from water gas, which is important in connection with underground coal gasification and in the production of artificial liquid fuel for cars and jet fuel. A number of rubidium- tellurium alloys have higher sensitivity in the ultraviolet region of the spectrum than cesium compounds, and in this regard, it is capable of competing with cesium as a material for photoconverters. In the composition of special lubricating compositions (alloys), rubidium is used as a highly effective lubricant in a vacuum (rocket and space technology). Rubidium hydroxide is used to prepare electrolyte for low-temperature chemical power sources [ source not specified 4261 days ] , and also as an additive to potassium hydroxide solution to improve its performance at low temperatures and increase the electrical conductivity of the electrolyte [ source not specified 4261 days ] . Metallic rubidium is used in hydride fuel cells. Rubidium chloride alloyed with copper chloride is used to measure high temperatures (up to 400 °C ). Rubidium vapor is used as a working fluid in lasers , in particular in rubidium atomic clocks . Rubidium chloride is used in fuel cells as an electrolyte, and the same can be said for rubidium hydroxide, which is very effective as an electrolyte in fuel cells using direct oxidation of carbon. Rubidium compounds are sometimes used in fireworks to give them a purple color."
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