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He then added the mineral acid, hydrochloric acid, which after some time precipitated a spongy white substance and soon turned yellow after some time. Lehmann reported that the mixture of those mineral resulted in the yellow color because he had mixed iron and zinc. A couple of years later in 1779, Peter Woulfe was studying Lehmann’s work and he decided to infuse it with salt and he too found that it resulted in salt which meant he might have came across a new element. Three years later the chemist Carl Wilhelm Scheele examined the white mineral and he named it Tungsten and proved that because of the salt, it had formed the new acid...
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