About 399 results
Open links in new tab
  1. How long does it take for copper to oxidize and turn green ... - Answers

    Nov 29, 2024 · It takes about 20 years for Copper to turn greeen in normal conditons. Here are a few ways to make Copper Turn Green Quickly. #1. In the summertime, spray it with a spritz bottle with a …

  2. How long does it take for blood to oxidize and change color when ...

    Feb 7, 2025 · When blood is exposed to air, it typically takes around 15-30 minutes for it to oxidize and change color, turning from bright red to a darker, brownish hue.

  3. Does copper oxidize when exposed to water? - Answers

    Feb 7, 2025 · To oxidize copper and achieve a green patina, you can expose the copper to a combination of oxygen, moisture, and acidic substances like vinegar or saltwater.

  4. How long does it take for a pear to oxidize? - Answers

    Nov 19, 2022 · How long does it take for blood to oxidize and change color when exposed to air? When blood is exposed to air, it typically takes around 15-30 minutes for it to oxidize and change color, …

  5. How does blood oxidize and what factors contribute to this ... - Answers

    Feb 7, 2025 · How long does it take for blood to oxidize and change color when exposed to air? When blood is exposed to air, it typically takes around 15-30 minutes for it to oxidize and change color, …

  6. What causes copper to oxidize and change color over time?

    Feb 7, 2025 · Copper oxidizes and changes color over time due to exposure to oxygen in the air, which forms a layer of copper oxide on the surface of the metal.

  7. How long does it take for brass to decompose? - Answers

    Jun 6, 2024 · Brass is a metal alloy made from copper and zinc, which do not decompose in the same way that organic materials do. Brass can oxidize and corrode over time, but it can persist for a very …

  8. How quickly does steel rust when exposed to the elements?

    Feb 12, 2025 · How long does it take for stainless steel to rust? Stainless steel typically does not rust quickly, as it is designed to resist corrosion. However, in certain conditions, such as exposure to …

  9. Does copper or aluminum rust faster? - Answers

    May 24, 2024 · The brown/red colour of copper metal will slowly tarnish (oxidise) over a period of days and weeks, to become a dull colour and if left for a longer time , may go black as copper oxide, or …

  10. Why does fire turn green while burning copper? - Answers

    Jan 15, 2025 · When a copper rod is on fire, it will oxidize and produce copper oxide. The flames from the fire will be green or bluish-green due to the presence of copper ions.