The Actinium Uranium Ratio in Colorado Carnotite
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The filtrate was boiled with an excess of sodium carbonate, containing some ammonium sulphide, and the carbonates filtered off. The uranium was precipitated and weighed as sodium uranate. It weighed 6. 6042 grams and the film made from it weighed 0. 0096 gram. The activity of the film was 1. 990 divisions per minute. This gives an activity of 55 divisions per minute for the uranium in one gram of the mineral.
The activity of the ionium per one gram of the mineral, using Bolt- wood's value, shou...ld be (0. 34 X 55) 18. 6 divisions per minute. De- ducting this value from the activity calculated from the ionium-actinium film (26 divisions per minute per one gram of mineral) gives 7. 4 divisions per minute as the activity due to actinium and its products in equilibrium. This is 0. 135 times the activity of the uranium.
Experiment 2. Fifty grams of specimen B carnotite were taken for this experiment. The material was treated in the same manner as that of experiment I. The activity of the ionium-actinium film 100 days after separation was 2.
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To quickly assess the difficulty of the text, read a short excerpt:
The filtrate was boiled with an excess of sodium carbonate, containing some ammonium sulphide, and the carbonates filtered off. The uranium was precipitated and weighed as sodium uranate. It weighed 6. 6042 grams and the film made from it weighed 0. 0096 gram. The activity of the film was 1. 990 divisions per minute. This gives an activity of 55 divisions per minute for the uranium in one gram of the mineral.
The activity of the ionium per one gram of the mineral, using Bolt- wood's value, shou...ld be (0. 34 X 55) 18. 6 divisions per minute. De- ducting this value from the activity calculated from the ionium-actinium film (26 divisions per minute per one gram of mineral) gives 7. 4 divisions per minute as the activity due to actinium and its products in equilibrium. This is 0. 135 times the activity of the uranium.
Experiment 2. Fifty grams of specimen B carnotite were taken for this experiment. The material was treated in the same manner as that of experiment I. The activity of the ionium-actinium film 100 days after separation was 2.
What to read after The Actinium Uranium Ratio in Colorado Carnotite?
You can find similar books in the "Read Also" column, or choose other free books by Karl Hartley Fussler to read onlineMoreLess
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