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Phase behavior Triple point: 178.5 K (−94.3 °C), ? Pa Critical point: 508 K (235 °C), 48 bar Std enthalpy change of fusion, Δ fus H o +5.7 kJ/mol Std entropy change
Acetone and acetic anhydride ((CH 3 C(O)) 2 O) upon the addition of boron trifluoride (BF 3) catalyst: [11] (CH 3 C(O)) 2 O + CH 3 C(O)CH 3 → CH 3 C(O)CH 2 C(O)CH 3 A second synthesis involves the base-catalyzed condensation (e.g., by sodium ethoxide CH 3 CH 2 O − Na + ) of acetone and ethyl acetate , followed by acidification of the sodium ...
Substance Formula 0 °C 10 °C 20 °C 30 °C 40 °C 50 °C 60 °C 70 °C 80 °C 90 °C 100 °C Barium acetate: Ba(C 2 H 3 O 2) 2: 58.8: 62: 72: 75: 78.5: 77: 75
The Grasberg mine has one of the largest reserves of gold and copper in the world. [ 2 ] [ 3 ] It is located in Mimika Regency , Central Papua , Indonesia near Puncak Jaya . It is operated by PT Freeport Indonesia (PTFI, see below ), a joint venture among the government of Indonesia , government of Central Papua , and American company Freeport ...
Acetone peroxide (/ æ s ə ˈ t ə ʊ n p ɛr ˈ ɒ k s aɪ d / ⓘ also called APEX and mother of Satan [3] [4]) is an organic peroxide and a primary explosive. It is produced by the reaction of acetone and hydrogen peroxide to yield a mixture of linear monomer and cyclic dimer, trimer, and tetramer forms. The monomer is dimethyldioxirane.
Secondary products included cobalt, copper, zinc, gold and nickel. Red Lake Mine: Red Lake: Evolution Mining: 1949 - Present Richardson Mine: Eldorado: Kim Woodside 1867-1869 Ontario's first gold mine Temagami-Lorrain Mine
In mineral exploration, salting is the fraudulent practice of adding valuable metals and gemstones, particularly gold or diamond, to ore samples from a mine to inflate the apparent value of the deposit. This deception aims to mislead potential buyers or investors into believing that the mine is more productive and valuable than it truly is. [1]
Usually the mines are said to contain valuable elements or minerals such as gold, silver or diamonds. Often there is a map or other document allegedly detailing the history or location of the mine. Common to all the lost mine legends is the idea of a valuable and mysterious resource being lost to history.