when was zircon discovered

EugeneJeremy Release Time: 3月 14, 2024, 5:53 下午

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Zircon, as a mineral, exists in the earth's crust for billions of years. However, it was first mentioned in literature in the 6th century AD by a Persian scholar named Biruni. As a common gemstone, it has been used and recognized for centuries. However, if you're referring to Zirconium, a metallic element extracted from zircon, it was discovered by Martin Heinrich Klaproth in 1789, but it was first obtained in a pure form in 1824 by Jöns Jakob Berzelius.

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Q how to make 50 50 methanol

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KarenWilliam Release Time: 9月 20, 2024, 11:30 上午

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Producing a 50/50 mixture of methanol and water is a straightforward process often used for various applications like fuel blends or antifreeze. Here's a simple method:

1. Safety First: Wear protective gear like gloves and goggles since methanol is toxic and flammable.

2. Measure Accurately: Gather equal volumes of methanol and water. You can use a graduated cylinder or a measuring cup for precision.

3. Mixing: Pour the methanol into a clean, non-reactive container (preferably glass or plastic). Slowly add the water while stirring gently to combine.

4. Double-check: Verify the ratio before use. If needed, use a hydrometer to measure the solution's specific gravity.

Remember, this mixture can be hazardous; handle it with care, store it properly, and avoid ingestion or skin contact.

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