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This doesn't make sense to me, because the solubility at 20 degrees of NaCl and Kcl are almost the same, how can you separate them by filtration if both are practically in the same amount in solution?
High purity is not possible with this method. A mixed salt is actually preferable when used as a feedstock for a chlorate cell. Sodium catalyzes chlorate formation and is easier on electrodes. When the reaction is complete, sodium chlorate is highly soluble and potassium chlorate is almost completely insoluble. So, kclo3 falls out of solution almost 100% pure.
why that nitrogen i more acidic than the other one in the imidazol ring? the lone pair is supposed to be involved in the aromatic delocalization while the other one has a lone pair in sp2 orbital i don't really understand, if someone knows please I really wanna understand this point
So whit this method you can separate Kcl from NaCl by diferent degree of cristalization , so the NaCl stay in liquid while the KCl are all formed cristals right?!
This is how mainly essential oils are made. Indeed, industry scale essential oils are distilled continuously. Thus, the solvent extraction step is redundant. Since (purely) solvent extration is another common method to extract fragrances, the products are called 'absolute' instead of 'essence oil'. There are two types of distillation. This video demonstrates water distillation where the raw naterial is soaked in the water. Another one is steam distillation, which is more common, places the raw material on a mesh or any holed container upon a pool of steaming water, and the steam goes through the raw material to extract the fragrances. There is a disadvantage of distillations. There are always more than traces of fragrance dissolved in water. Thus, fragrances of essential oil are often described as 'incomplete' compared with absolutes. The remaining water is not discarded. It calls 'hydrosol', while itself is also somewhat fragrant and is also used in purfumery. Some hydrosols (i.e. rose) can have strong fragrance enough to replace essential oils in some applications. P.S. but there is a bit of epic fail as you use lemon peel for this demonstration. Citrus fruits peel oils are usually extracted by cold pressing without any distillations. But you yet do a good demonstration about distillation❤
Great video! thank you very much! I have a question, perhaps you know this: On all lemon oils I see it is said to be *for external use only*. Why is that? I know that e.g. fish oil is flavoured by lemon oil.
I try to click the link to buy equipment like this video , but the link is not work properly again..... Colud you please help us , how can we get the equipment / distillator ?
For oceanography, salinity is determined by conductivity at a known temp then calculated. Salinity is unitless but can be referred as practical salinity units PSU. Common Instrumentation: Guildline 8400B instrument - stable enough to use at sea.
Hi nice video, I have a question how to know that how many days it takes for all the solvent to evaporate leaving behind only a concentrated extract of essential oil?
Too long process just to get a tiny little drops of oils it has to be a faster way to do the same and without mixing the water some chemicals to extract the remaining oils.
this pigment turned out absolutely gorgeous! another thing worth noting is the fact that because it's mineral-based, it's extremely lightfast so it has an archival quality that can allow it to be preserved for years, even decades! good news for any artist that is looking to use it in their worl
