Download E-books The Chemistry of Alchemy: From Dragon's Blood to Donkey Dung, How Chemistry Was Forged PDF
By Cathy Cobb, Harold Goldwhite
A new angle to the historical past of technological know-how utilizing do-it-yourself experiments besides short historic profiles to illustrate how the traditional alchemists stumbled upon the technology of chemistry.
Be the alchemist! discover the legend of alchemy with the technology of chemistry. get pleasure from over twenty hands-on demonstrations of alchemical reactions.
In this exploration of the traditional artwork of alchemy, 3 veteran chemists convey that the alchemists' quest concerned genuine technology they usually recount interesting tales of the sages who played those unusual experiments.
Why waste extra phrases in this bizarre deviation within the evolution of chemistry? because the authors exhibit, the writings of medieval alchemists could seem just like the ravings of brain-addled fools, yet there's extra to the tale than that.
Recent scholarship has proven that a few possible nonsensical mysticism is, actually, decipherable code, and Western ecu alchemists functioned from a more impregnable theoretical beginning than formerly proposal. they'd a tenet, in keeping with adventure: separate and purify fabrics by way of hearth and reconstitute them into items, together with, after all, gold and the common elixir, the Philosophers' stone.
Their efforts weren't in useless: by trial, via blunders, through layout, and through endurance, the alchemists chanced on acids, alkalis, alcohols, salts, and beautiful, strong, and colourful reactions--which might be reproduced utilizing universal items, minerals, metals, and salts.
So assemble your vats and stoke your fires! prepare to make burning waters, peacocks' tails, Philosophers' stone, and, after all, gold!
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Additional resources for The Chemistry of Alchemy: From Dragon's Blood to Donkey Dung, How Chemistry Was Forged
28 was once he speaking a couple of related sulfur-water method? possibly… At any price, the following in the end is our process. 29 DISPOSAL The sulfur water may be kept for a later demonstration through placing it in a tumbler box and protecting the head with a sandwich bag or plastic wrap secured with a rubber band. in the event you make a decision to not reserve it, the sulfur water could be disposed of down a drain, yet do small quantities at a time, with the cool water working into the drain while. when you are performed, stick with with one other 5 to 10 mins of a water flush. Tape your alchemical iron and your citrinated silver on your laptop. DIVINE WATER If a person within the area (including your self) is allergic to sulfur, pass this demonstration. If now not, you'll want your sulfur from the pharmacy, pickling lime from the grocer, a pre-1965 US silver dime, a US copper penny, tweezers, a beaker, your forged iron skillet, a plastic spoon, and your safeguard glasses. additionally, you will have to practice all stages of this demonstration open air and use a hibachi as a warmth resource. For ease of dealing with, an enduring warmth, and a extra even warmth, use average charcoal briquettes as gasoline within the hibachi. fresh your penny with a vinegar/salt answer. (Can't support it, yet another apart: Geber recommends this certain recipe for cleansing copper. ) position approximately an 8th cup (20 milliliters) of sulfur with the same quantity of pickling lime on your beaker and position the beaker within the cast iron skillet. upload rather less than one-quarter cup of distilled water (about 50 milliliters) to the powders within the beaker. The pickling lime is calcium hydroxide and varieties a caustic answer in water, that is our “sharp water. ” hot this combination through putting the beaker within the skillet in your hibachi with the grill set at the center top and stir patiently together with your spoon. take into account Geber's admonition: “Therefore permit him that hath no longer endurance desist from the Work…”30 be cautious to not enable the answer boil (hot, splashing sulfur remembers scenes of Hades). whilst the aggregate is prepared (about fifteen to 20 minutes), it's going to have a pale-green colour. you need to maintain stirring your blend whereas dipping your cash as the resolution is, actually, a suspension—as against a homogeneous actual solution—and will separate if unstirred. whereas the answer is hot, and whereas stirring, take your penny with tweezers and dip approximately 1/2 the coin into the sulfur water. it may take purely a few minute for the penny to show darkish brown at the half that's uncovered to the water. it's going to have the glance of rusty iron, and, in truth, the sort of coin could have been Albert the Great's nonmagnetic alchemical iron. Set the penny apart and, whilst it really is dry, tape it on your pc simply because we are going to use it in a destiny demonstration. Now you need to permit the sulfur water to chill. get rid of the skillet from the hibachi. back wait and see, it has to chill to room temperature. you do not have to proceed stirring. as soon as the sulfur water has cooled, stir it completely and maintain stirring once you use the tweezers to dip the silver dime.