Taking a Look at Sweet Corrosion

In the experiment, four nails rusted in water containing various concentrations of salt for fourteen days. At the end of the experiment, it can be concluded that nail three--the nail placed in the solution containing the highest concentration of salt--rusted the most, followed by nail one, nail zero, and nail two. At first, nail zero, which was placed in tap water, was rusting the quickest. However, it was the slowest to change color, which turned entirely gray by day twelve. The other nails, however, turned entirely grey by day two with black stains appearing on nail two. By day five, the amount of rust on nails one and zero rapidly increased while the formation of rust on nail zero slowed down. Nail two did not begin to rust until day five

The first pipelines were nothing special; they were short and sometimes made of wood. With their growing popularity into the 1860s, the quality control followed over the pipe manufacturing, switching from wrought iron to steal. (Pipeline 101, n.d.) Coming into the twenty-first century, the pipeline has still been playing a key role in the oil industry. Given, its importance to the oil industry it is important to understand how

Society relies heavily on metals in nearly every aspect of life; however the corrosion of such metals has become a costly and very prevalent issue worldwide. Large amounts of energy, time and money has been poured into

At the same time, pipeline safety regulations have become more complete, driven by better understanding of materials available and better techniques to operate and maintain pipelines” (“Why Do We Need Pipelines” 1). Since the 1830’s pipelines have come a long ways. Now instead of being made of iron, they are manufactured with very strong steel.

You may have first learned about powder coating as a way to finish cars – but in fact, it can be used for many metal objects. Powder Vision in Issaquah, WA can powder coat many types of metal, including stainless steel, aluminum, brass, iron, and just about anything else. You could benefit from powder coating and not even realize it! Read on to learn about the types of objects this versatile metal coating can protect:

The problem of the experiment is: which metal out of galvanized iron, copper, stainless steel, and steel will rust the least in acetic acid? The hypothesis is: If Copper is placed in the acetic acid then it will be the material that loses the least mass when mass lost is related to material submerged. The independent variable is what type of metal is being used. The dependent variable is the percent of mass lost while submerged in the vinegar. The controls include the amount of vinegar per sample, the same person pouring the vinegar, the same scale taking measurements, and the same amount of time submerged in the vinegar. The standard of comparison is how much the mild steel corrodes because that is the metal currently used to make the gas tanks at gas stations. The experiment designed to test this starts with cleaning of five different samples of copper, iron, mild steel, and stainless steel. After that, the mass of each sample is measured using an electronic balance. Then, each sample is put in a cup, and submerged in 200 mL of vinegar. They are then left in the vinegar for about 24 hours. Next, after the 24 hour period, each sample is then taken out, cleaned, and measured again. This process is repeated one more time. After the experiment is done, you calculate the percent of each sample lost by day, and find the average of those. Then, the metals are compared by percent of mass lost to find the most corrosion resistant.

I agree with you that doses are very small. I see your point of caring for the patient and not necessarily use a lead shield. However, remember the rules of personal protection: Time, Dose and Distance. If you have a procedure that might take you an hour and you will spend it with a patient, you will be exposed to a higher dose of radiation. I would think that in this particular example, we should use a lead shield, because we want to minimize/ decrease our annual dose of radiation exposure. If we will neglect all the safety rules, we might be in trouble. You always wear your seat belt while driving, right? It will increase your chance of survival during a car accident. Some people neglect to do that, like my husband, and his risk of being

Corrosive Materials could even burn through metal. It is very important to use cation while handling with Corrosive Materials.

Throughout the documentary, Lourdes fights to clean up the 6,000 tons of lead slag at the abandoned factory, Metales y Derivados (De La Torre & Funari, 2006, 27:02). When the factory was shut down, toxic chemicals “like sulfuric acid, cadmium, plastic, and lead” (De La Torre & Funari, 2006, 27:52) were left exposed to the elements and the surrounding community. To clean Metales y Derivados, it would take millions of dollars—money that the promotoras and Mexican government does not have (De La Torre & Funari, 2006, 29:30). Lourdes’s effort does pay off to some extent: once international media picked up the story, the Mexican government and the US Environmental Protection Agency provided her environmental justice group with US$65,000 to begin

Did you realize that living in Connecticut could cause you to come to a violent end? It's true, and for a reason you may never expect. One would think road salt would help them during the winter to reduce slippery conditions, but it also has a very horrid opposite effect.

The purpose of this project was to discover how the pH level affects corrosion rate. The hypothesis was if the pH level affects the corrosion rate, then the lower the pH level is quicker the corrosion rate would be. This will happen because liquids below the pH level of 7 possess stronger acidic attributes. The effect of pH level on corrosion rate was determined by depositing a copper penny in each of three plastic cups, and then three different liquids by their pH levels, were assigned to be displaced into each cup formulating a chemical reaction to be observed. The results collected during this investigation contradicted with the intended result, this experiment was conducted to determine corrosion rate; Dana Puti Vingear (pH level: 4.5)

Hearing about people who have lived to be one hundred, almost one hundred, or older is almost rare these days. Most people don’t even live to be 70. Ray Crist who is one hundred and one in the video, is just an inspiration. He has been a life-long scientist and has been working in his lab in Pennsylvania for thirty years. Ray has been researching toxic metals and how they affect the earth. Given his health problems, a pacemaker, limited vision, and worse than before hearing, Ray doesn’t let it stop him from living his life and doing what he loves. Ray said “he doesn’t think of it as a job.” “How could it be a job when it’s so interesting.” Ray also said that “he just lives life.”

Stainless steel hoses serve a variety of functions in an industrial setting, and if you are starting a business that will need these hoses, there is a good chance that you may not be that familiar with what these hoses need to stay in good condition. Utilizing the following couple of tips will help you to avoid some routine errors that can cause problems for your enterprise’s steel hoses.

According to five metal residues found from the inner wall of the truck cabin, all five metal residues can be classified into three groups: a deformed full-copper-jacketed bullet, .38 (9 mm); two residues of copper-jacketed bullets, size and class unidentified; two lead residues of the bullet, size and class unidentified. All these evidences are ammunition in accordance with the Firearms Act Ammunition, explosives, fireworks and imitation firearms (No. 3), B.E. 2501 (1958): Section 3

I chose titanium because it is a very common element and is used for many purposes.