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how long does it take for copper to oxidize

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how long does it take for copper to oxidize

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How long does it take for copper to oxidize and turn green ...

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 mixture of salt, vinegar and water every morning and night. Green in about 2 weeks.

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how long does it take copper to oxidise naturally - JustAnswer

Answered in 6 hours by The copper will oxidize if unprotected, but it will take greater than a year for it to fully turn green. It will turn dark brown in about a month. If you lacquer it, it will stay bright depending upon its environment and the amount of lacquer you use.

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How long does copper take to oxidize(rust)? Yahoo Answers

Nov 08, 2008 · You can imagine roughly how long iron takes to rust (a while in a wet salty environment) but copper takes longer. Fe will usually oxidize to Fe2O3 (rust). 100 g of copper is a lot, and it will someday oxidize but like I said, it's a very slow process.

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How to Age Copper 8 Steps (with Pictures) - wikiHow

May 02, 2011 · How to Age Copper. When copper reacts with the oxygen in the air, copper oxide (CuO) is formed, giving the copper a greenish color which some people desire for its classical look. When allowed to age naturally, copper can take years to...

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How Long Does It Take for Copper, Steel and Brass to Rust

"Rust" is iron oxide, the reaction product of iron or steel with the oxygen in the air. The penny will corrode, but since there is no iron in it, you can't make rust from it. Get a couple of 1983 or later pennies, have your parent cut them into pieces with tin snips.

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How to Oxidize Brass and Copper to That Gorgeous Brown ...

Feb 13, 2009 · Also make sure that the copper or brass is clean, even though it maybe polished, it might not be clean from any polishing compound you may be using. You can use any number of clear fixatives to seal in the color such as Future floor polish (crazy as it sounds, it is basically a very thin acrylic sealer, use a paint brush) or a spray acrylic fixative.

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What Causes Copper to Turn Green? - Tech-FAQ

Despite many people assuming that it does, acid rain does not cause copper to turn green. People usually ask this after seeing the Statue of Liberty which is a copper statue. However, the truth is, as the statue was bombarded with rain and air, it simply underwent oxidation.

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The Effects of Oxidation on Copper Sciencing

Copper Characteristics. In fact, copper has been used by humans for about 10,000 years. Today, copper appears in products from cookware, electrical wires and plumbing to jewelry and sculpture. Under certain conditions, these copper items can be affected by oxidation.

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How long does it take for copper to rust - Answers

Copper does not rust. It will, on contact with the air, form a greenish "verdigris" of copper sulphate on it's surface - but that is not rust.

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How long does copper take to oxidize(rust)? Yahoo …

Nov 08, 2008 · You can imagine roughly how long iron takes to rust (a while in a wet salty environment) but copper takes longer. Fe will usually oxidize to Fe2O3 (rust). 100 g of copper is a lot, and it will someday oxidize but like I said, it's a very slow process.

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How long does it take for copper to oxidize naturally ...

Copper cannot easily rust like iron thats why they will rather use copper near water than iron. most electricity companies use copper compare to aluminum though expensive because of its durability.Copper wire may take a minimum of 30 years if not interfered with after wiring.

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How long does it take for copper to rust - Answers

it will probably take at least 5 minutes for a needle to rust unless it is copper.

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Copper Roof Patina Process - Metal Roof Network

Copper goes green and turquoise after prolonged exposure to moisture. Without accelerating the process, it can actually take 20 years or more in dry climates for this patina to develop.

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What Causes Copper to Turn Green? - Tech-FAQ

Despite many people assuming that it does, acid rain does not cause copper to turn green. People usually ask this after seeing the Statue of Liberty which is a copper statue. However, the truth is, as the statue was bombarded with rain and air, it simply underwent oxidation.

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Why And How Does Copper Oxidize? - selfgrowth

The process of oxidization is not one that is altogether unfamiliar to us - iron is subjected to rust (a flaky layer of reddish brown metal), aluminium to corrosion (white flakes of metal), and even food can go brown if it's left out of the fridge for too long. In the same way, copper is also subjected to the oxidization process - when exposed to oxygen for an extended period of time it begins to turn green.

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How Long Does It Take for Brass to Rust? Hunker

Tarnish is a mild form of corrosion caused by exposure of copper to the environment. Salt, in particular, tarnishes brass quickly and must be kept away from brass intended to be kept shiny. Chemicals in rainwater, tap water and air, as well as those found on our fingers and in food, are also corrosive.

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5 Things that Cause Copper to Tarnish DoItYourself

Knowing what causes copper to tarnish is the first step to stopping the process from happening. The following article will explain what causes copper to tarnish. 1. Oxygen. The air around us causes copper to tarnish, and it can happen overnight. The Stature of Liberty is made out of copper and is green from years of exposure.

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Copper Information - Basic Copper's FAQ

What kind of finish does your copper sheet have? ... This is applied at the mill to slow down the oxidation process and help the rolling process. It can be removed quite easily with a cloth and a gentle buffing. ... The patina actually serves to protect and preserve the copper from corrosion. Of course, how long this process takes depends on ...

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Why Does Copper Oxidize and Turn Green? - ScienceStruck

☞ The oxidation process is characterized by the formation of three main products azurite, malachite, and brochantite. These minerals impart the characteristic bluish-green color to oxidized copper metal and form the patina layer. Simply speaking, it is a redox reaction wherein both oxidation and reduction take place at the same time.

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Science Project Copper Rusting - Finishing

Science Project Copper Rusting I am a 6th grader doing a science project which asked the question, how long does it take for copper to rust in the following environments a. Ice cold water b.

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Q & A Rate of rust formation Department of Physics ...

Rust is the oxidation of iron along with the absorption of water to make Fe2O3 with water molecules attached. Here are some things that can affect the rusting rate 1) …

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Plumbing parts How long before they need replacing?

Cast iron will rust from the inside out. It is thick pipe and usually will take a long time to rust through, even in bad water conditions. Tapping on the outside of the pipe will reveal weak spots, if the pipe is severely corroded. You also can inspect the interior of the pipe with a camera -- an expensive process.

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Copper Facts

Unlike rust oxidation, the copper patina is a protective barrier that retards further corrosion, to maintain copper's long life. Copper Fact 3 Not everyone can wait for copper to weather naturally.

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