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Potassium - Periodic Table of Videos

Potassium is an "evil" element, but it's crucial to life. In this video see some violent explosions and the gentle creation of a potassium mirror. More chemistry at www.periodicvideos.com Follow us on Facebook at www.facebook.com And on Twitter at twitter.com Periodic Videos films are by video journalist Brady Haran
Категория: Science & Technology
Время: 00:03:24.750
Теги: potassium
 

Reactions of sodium and Potassium with Water

A chemical demonstration of the reaction between sodium and water and between potassium and water. Carleton University, Ottawa, Canada.
Категория: Howto & Style
Время: 00:05:32.250
Теги: Carleton University Chemistry Demonstration Sodium Potassium Water
 

Managing Electrolytes: Potassium

Learn more about potassium and how to assess for abnormal values in your patient. From: www.ed4nurses.com
Категория: Education
Время: 00:07:30
Теги: Nursing Registered Nurse Electrolyte Care Potassium
 

Potassium Explosion (8 GRAMS) -slow motion

There's a reason why I started with 250 mg (1/4gram) of potassium. When dealing with potentially hazardous stuff, you need to have a good feel of what the hazards are. The scale-up went 1/4 g, ~1.5g, then 8 grams. The 8 grams did not destroy the shatter resistant jug, but it sure made a mess of the plastic container on which it stood. What you see in this video is a concerto of chemistry and physics. However I'm currently on the road, and really don't have much time or resources to make a detailed video about it at the moment. Will hopefully get something out later though :-) This video was made with material purchased with donations to the thunderf00t channel and is available under a creative commons, share-alike, attribution license (attribution Thunderf00t). The music (available under the same license) is Windpearl, Mother Earth, track 4.5 billion years. Who'd a thunk it!
Категория: Entertainment
Время: 00:01:00.750
Теги: potassium blows stuff up explosion fire water hydrogen alkali metals metal reactive reactivity sierra nevada chemistry thunderf00t physics slow motion boom awesome fun funny cool rocket high frame rate
 

High Blood Pressure Tips & Treatments : Potassium Rich Food for High Blood Pressure

High blood pressure may be helped by a diet high in potassium. Learn more about the effects of potassium on blood pressure with tips from a doctor in this free health video. Expert: Dr. Robin Terranella Bio: Dr. Robin Terranella has a medical degree from Bastyr University and has trained at Wu Hsing Tao Acupuncture School. Filmmaker: Dustin Daniels
Категория: Howto & Style
Время: 00:01:03
Теги: health blood pressure high hypertension care diets free how to Expert Village
 

Make Potassium Metal (Catalyzed Magnesium Reduction Method)

We make potassium metal using a lesser known chemical approach of reduction with magnesium. Warning: Making potassium is extremely dangerous. Full fire safety protocols must be in place including protective clothing, goggles and face shields. Burning potassium cannot be extinguished by conventional means and water only serves to increase its danger. This experiment should only be performed by an experienced chemist in a fume hood. In a flask place 2.4g of magnesium turnings or powder, 5g of potassium hydroxide, and 20 mL of tetahydronapthalene or paraffin/mineral oil. If using oil the boiling point should be greater than 200 degrees Celsius. Fit a reflux condenser onto the flask and prevent air access by covering the top of the condenser with foil. Alternatively a bubbler or a punctured balloon may be used. Heat the reaction to reflux or +200 degrees Celsius. Color change of the solvent may occur at this time. Inject of 0.4 mL of a tertiary alcohol (t-butanol and t-amyl alcohol have been confirmed successful) through the top of the condenser. Add in an additional 0.1mL of alcohol every 10 minutes for a total of 0.6 mL of additional alcohol (1.0 mL overall). Continue to reflux until potassium is produced. If potassium goes dark, add an additional 0.1 mL of alcohol. What's happening is the magnesium reacts with the potassium hydroxide to produce potassium metal, hydrogen gas and magnesium oxide. The alcohol catalyzes this reaction. If you're using a high-density solvent ...
Категория: Science & Technology
Время: 00:07:39
Теги: Chemistry experiment sodium lithium alkali metal Magnesium Fire Home Made
 

Potassium Chlorate and Gummy Bear

Molten potassium chlorate is a strong oxidizing agent that reacts violently with sugar. Gummy bears have lots of sugar in them.
Категория: Entertainment
Время: 00:00:46.500
Теги: potassium chlorate gummy bears chemistry chemical reaction
 

What Is Potassium

What Is Potassium Name Origin From potash (pot ash); K from latin: kalium "Potassium" in different languages. Sources Found in minerals like carnallite [(KMgCl3).6H2O] and sylvite (KCl). Potassium makes up about 2.40% of the weight of the Earth's crust, it is the seventh most abundant element. The main sources of potash are mined in USA (California, New Mexico and Utah) and Germany. Around 200 tons are produced annually. Abundance Universe: 3 ppm (by weight) Sun: 4 ppm (by weight) Carbonaceous meteorite: 710 ppm Earth's Crust: 15000 ppm Human: 2 x 106 ppb by weight 3.2 x 105 ppb by atoms Uses Used as potash (potassium carbonate) in making glass, soap, lenses and salt substitute. Also as potassium nitrate (KNO3, also called saltpeter) it is used to make explosives and to colour fireworks in mauve. Glass treated with liquid potassium is much stronger than regular glass. Potassium chloride (KCl) is used as a substitute for table salt and is also used to stop the heart, eg in cardiac surgery and in executions by lethal injection in solution. History Potassium was discovered in 1807 by Sir Humphry Davy, who derived it from caustic potash (KOH). Potassium was the first metal that was isolated by electrolysis.
Категория: Science & Technology
Время: 00:01:42
Теги: What Is Potassium calcium chloride potassium foods rich in potassium low in potassium high in potassium sodium and potassium potassium sodium potassium sulfide formula potassium oxide formula atomic mass of potassium ionic potassium molar mass of potassium potassium symbol lead nitrate potassium iodide properties of potassium potassium sparing diuretic potassium sparing diuretics element potassium potassium oxalate
 

Potassium

www.ihealthtube.com Pharmacist Max Motyka explains why you need potassium - especially for athletes and people who exercise and sweat.
Категория: Howto & Style
Время: 00:04:57.750
Теги: Potassium Diet Food Natural Health Vitamins Supplements
 

Sodium Potassium Pump

How a sodium potassium pump can maintain a voltage gradient across a cell or neuron's membrane
Категория: Education
Время: 00:10:24.750
Теги: sodium potassium pump atp atpase voltage gradient
 
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