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Gold Mining: Secrets of Gold Prospectors: Revelation of Auriferous Rocks!
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"Secrets of Gold Prospectors: Revelation of Auriferous Rocks!
The Gold Hunt: Discover Precious Gems to Target!
Gold and Rocks: The Ultimate Guide to Gold Mining!
This is the king of tellurides. The tellurides form a family of binary compounds of the element tellurium (Te) and another element or group. Five tellurides are particularly significant as sources of precious metals.
In this very important video every gold and silver seeker will find information that should not be overlooked but preserved and never neglected, because it is the key to everything that is useful to you. Watch the video until the last minute. And spread it to the largest number of your acquaintances in order to do good
And people pray for you in favor of their prayers, and do not forget to press the like button so that everyone benefits,
thank you.
Tellurides are easily identified under the blow pipe or by means of a simple wet chemical test. If a material is suspected of being a telluride, a small sample should be ground up and dampened with water to make a small fiat cake (no flux need be added). On the charcoal block, tellurium melts easily, volatilizing in fumes and coating the charcoal block with tellurous acid a short distance from the sample. When the sample is subjected to an oxidizing flame, the charcoal block's coating is white, with a red to dark yellow border. Under the reducing flame, the border disappears in a green flame. If selenium is present, the flame is bluish green. In order to identify tellurides using chemicals, first grind up a piece of the ore about the size of a navy bean, place this in a dry test tube, and add enough strong sulphuric acid with a dropper to cover the sample. If a telluride is present, a reddish violet color will show. The addition of sulphuric acid causes an exothermic reaction (produces heat). Let this cool and then add distilled water to the test sample, drop by drop, until the color disappears; finally, add a few drops of distilled water in excess. A grayish black sediment will precipitate (fall down). This is tellurium.
The Gold Hunt: Discover Precious Gems to Target!
Gold and Rocks: The Ultimate Guide to Gold Mining!
This is the king of tellurides. The tellurides form a family of binary compounds of the element tellurium (Te) and another element or group. Five tellurides are particularly significant as sources of precious metals.
In this very important video every gold and silver seeker will find information that should not be overlooked but preserved and never neglected, because it is the key to everything that is useful to you. Watch the video until the last minute. And spread it to the largest number of your acquaintances in order to do good
And people pray for you in favor of their prayers, and do not forget to press the like button so that everyone benefits,
thank you.
Tellurides are easily identified under the blow pipe or by means of a simple wet chemical test. If a material is suspected of being a telluride, a small sample should be ground up and dampened with water to make a small fiat cake (no flux need be added). On the charcoal block, tellurium melts easily, volatilizing in fumes and coating the charcoal block with tellurous acid a short distance from the sample. When the sample is subjected to an oxidizing flame, the charcoal block's coating is white, with a red to dark yellow border. Under the reducing flame, the border disappears in a green flame. If selenium is present, the flame is bluish green. In order to identify tellurides using chemicals, first grind up a piece of the ore about the size of a navy bean, place this in a dry test tube, and add enough strong sulphuric acid with a dropper to cover the sample. If a telluride is present, a reddish violet color will show. The addition of sulphuric acid causes an exothermic reaction (produces heat). Let this cool and then add distilled water to the test sample, drop by drop, until the color disappears; finally, add a few drops of distilled water in excess. A grayish black sediment will precipitate (fall down). This is tellurium.
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