Tungsten Research Paper

Being a bit of a trickster, Wollaston advertised the properties of this new element before putting it up for sale, but didn't reveal any other information. When another chemist,

The Steel’s physical properties include a stiffness level similar to mild steel. With the addition of chrome and molybdenum the steel can be strong enough to butt or be thinned down in the middle, thus making the material lighter.

Once used for varying applications, lead is now known for its toxicity in the human body. Dr. Gary Goldstein, the chief executive of Kennedy Krieger Institute wrote, “Exposure to excessive amounts of inorganic lead during toddler years may produce lasting adverse effects upon brain function (Goldstein 1990).” Lead poisoning awareness has become increasingly prevalent in the American government, with lead poisoning testing recommended as early as nine to twelve months of age (Health and Human Services 2011). This paper will explain briefly lead’s history and industrial uses, as well as give an in-depth analysis on lead’s exposure to children and how it affects their developing brains.

In 2000, WHO assessed the global burden of disease due to a number of risk factors associated with lead. (3)

The effects of lead in the human population have been an issue since the early civilizations because lead was found in almost every item used for eating and cooking. In the 1950’s, houses were built and the first choice for plumbing pipes was made of lead. The paint used to cover the interiors was lead based. Children’s toys were also coated with lead based paint. Nowadays, lead can still be found in some glassware; however, the government has banned the use of lead in the rest. Lead can be introduced into the body through inhalation or skin contact. However, ingestion of lead is the most common way of it being transported into the body. There are a few symptoms that are caused by lead poisoning in the gastrointestinal tract: stomach pain, weight loss, decreased appetite, constipation, diarrhea, unusual taste in the mouth, and a blue line around the gum line. The two problems that occur with these symptoms are that they can be misconstrued as symptoms for other diseases, such as appendicitis. These symptoms occur only when lead is at high concentration in the body. Being the foremost pathway for intake, absorption in very dependent on the gastrointestinal lumen environment, amount of iron in storage, and age (Rabinowitz, 1980). These variables can either increase or decrease the absorption of lead.

The top physical property that titanium is recognized for is its strength-to-weight ratio. Titanium is very strong, but it is very light weight. The element is lustrous; it

Ingestion of too much lead causes serious health issues, as seen as the photo above. (Dangers of lead exposure, 2013). Not only is lead harmful upon consumption, however it is a carcinogen and is also harmful when inhaled. Lead poisoning can also cause poor muscle coordination, impaired vision and hearing, reproductive issues and an increase in blood pressure (Environmental Protection Agency, 2013). Lead acts as not only a neurotoxin, but also as an endocrine disruptor. Because lead causes embryo malformation as well as deformation of the fetus, lead is also put into the category of being a teratogen and

lead is a commonly used element that’s used in are everyday life. We use lead in things such as cans, gasoline, batteries, etc. Throughout history lead has been used for numerous amounts of things, but not until the late 19th century was lead recognized for being poisonous to humans and the environment. Lead poisoning has serious effects on the body like nausea, vomiting, and long-term effects such as learning disabilities. While particles of lead can also pass through the air and water we drink.

We presented progressed tungsen military application and assessment supplies from residential and abroad to enhance our creation limit, nature of items, and business sector rivalry capacity. We have two arrangement tungsten combination protection items with autonomous licensed innovation, high-thickness tungsten composite guard and solidified carbide. Our tungsten composite guard items are generally utilized as a part of hardware, electronic, mining, building material, oil and national tungsten combination barrier industry. We are endeavoring to give amazing tungsten compound resistance items and tungsten military application with superb administrations and aggressive costs. Tungsten composite protection items and tungsten military application in our organization appreciate a decent notoriety both at home and

Being number 13 on the periodic table. Aluminum is a soft and not very strong metal. But when this metal is alloyed with other elements it increases it’ strength. Once it’s become stronger than it can be used in many useful means.

The element Thallium is a soft grey post-transition metal that cannot be found in nature. It was first discovered by William Crookes and Claude – Auguste Lamy in 1861. Thallium 201 is a radioisotope that is used in medicine for Cardiac Stress Test. A radioisotope is an atom with an unstable nucleus due to its heavy atomic mass. The radioisotope differs from its original element because it has the same number of protons but different number of neutrons hence resulting in a heavy atomic mass.

Tungsten carbide wedding rings and bands for men are some of the most durable, heavy and solid rings you can buy. They're stronger than other metals and are perfect for the man who might give his ring a beating. As a symbol of your love, there's no metal that is stronger or more meaningful than a Tungsten wedding band. These are some of the choices that are miles away from plain, old wedding bands.

Copper is an important material in the electrical industry. In the electrical industry, copper is used as the electrical conductor in wires. It is the most used conductor for wiring because it is the most conductive non-precious metal. Copper is used in most wires for any different types of wiring. Copper mining is a threat to the environment and humans. Copper is dug from mines that are located in Chile, Mexico, and the United States (Reference.com/science). These countries have the largest copper mines in the world. The mining and refining process for copper produces harmful chemicals such as sulfuric acid and sulphur dioxide (Sara Dudgeon, Copper Mining from the Ground Up, 2009). Sulfuric acid and sulphur dioxide are very damaging to the

My element is Argon and its symbol is Ar. Argon is the third most common gas that is found in the earth’s atmosphere. Argon is a noble gas that is also used to keep light bulbs from bursting. Argon is located in period 3 group 18. Argon is also used to make titanium and other reactive chemicals. Argon is an odorless, colorless gas. Argon is the 3rd most abundant gas. Argon has 8 protons, 8 electrons and 2 neutrons in its shell.

The Tensile tests were carried out on the fabricated welds according to the standard given by the ASTM E8M- 04, the welded plates are marked for the right dimensions and sheared manually to a width of 100mm. Generally two tensile pieces are cut from each welded joints piece for accuracy. The specimens are noticeable for identification, the centre of the weld is identified and 40 mm mark is made to facilitate the measurement of elongation after the test sample breaks under tension the specimens at the marking