| 1. | The fertilizer was anhydrous ammonia _ a key ingredient in methamphetamine.
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| 2. | Anhydrous ammonia, used to make fertilizer, is highly explosive.
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| 3. | Anhydrous sodium sulfate occurs in arid environments as the mineral thenardite.
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| 4. | All reagents must be anhydrous for the analysis to be quantitative.
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| 5. | Anhydrous double sulfates of ammonium also occur in the Langbeinites family.
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| 6. | The salt obtained in this way is in the anhydrous state.
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| 7. | When heated, hydrated barium iodide converts to the anhydrous salt.
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| 8. | The anhydrous form is found in nature as the mineral berlinite.
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| 9. | The brown hydrated oxide converts to black anhydrous oxide on heating.
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| 10. | The anhydrous compound has a structure similar to that of berlinite.
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