Activated carbon

According to Encyclopedia Britannica in Britannica School the word tungsten comes from the mineral scheelite which was once called tungsten, which means heavy stone. The name comes from the Swedish chemist and his countrymen who discovered the metal in scheelite. The atomic number of tungsten is 74 and tungsten’s atomic weight is 183.84. Tungsten is also one of the densest and hardest metals in the world. From Encyclopedia Britannica in Britannica School, tungsten was discovered by a Swedish…

As a leading industrial seals distributor, Valley Seal provides Parker and Coorstek engineered sealing products. We at Valley Seal ensure a stock of the widest range of seals for customers to choose from. These include simple O-rings, rods wipers and scrapers, back-up rings, and custom molded rubber products. We also provide uniquely designed seals and fasteners from Parker. These sealing products will be discussed in this post. Three Uniquely Designed Parker Seals The seals and fastener…

Hello everyone. The chemical that i’ve chosen to research is called “phthalate”, and the question I’m asking is whether it should be banned? The chemical formula for the most popular form of phthalate is C8H4O4. There is also a substance called “Phthalic acid”, from which phthalates originate, which is used to synthesize into phthalate. Some of phthalates physical properties include: a melting point of 207°, and a boiling point of 378°. It’s a colourless, white crystalline (translucent)…

bromonium ion and the other is a secondary carbocation. For the first intermediate, the second bromine ion attacks from under the bromine ion that is already present in the structure because of steric hindrance. It can attack either left or right carbon but each would make the same compound. This forms the product meso-stilbene dibromide. For the second intermediate, the bromine ion can attack in two ways, from either side. The result is either a cis or trans product forming fifty percent of the…

In the case of Anna Garcia, many important pieces of information were uncovered with various forms of analyses. In this case, the cause of the death of Anna Garcia is being investigated, along with reasons. Various important clues from the crime scene give hints as to what Anna Garcia’s demise was, among them a hypodermic needle on the floor. Another important piece of evidence at the crime scene is the presence of blood in a puddle, along with some drops. In addition, there was a pile of barf…

1) Petcoke is the nickname given for Petrolum Coke, a material that looks like coal and is a byproduct of refining the oil brought in from Canada. (Chicago Public Health) While no known illnesses of health effects are associated with Petcoke, they can cause breathing issues, which includes “coughing, wheezing, or shortness of breath.” (Chicago Public Health) Currently, the Illinois Environmental Protection Association Agency is investigating an open-air storage area along the Calumet River (EPA)…

Picture Caption: Beware this is a road bike other bikes with have similar components but not the same as this road bike. • Frame: The frame of the bike holds everything together and consist of the Head tube, Top Tube, Down Tube, Seat Tube, Seat Stays, and Chain Stays. • Head Tube: The head tube contains the headset, the bearings for the fork. • Top Tube: The top tube connects the top of the head tube to the top of the seat tube. • Down Tube: The down tube is connected to the head tube. Also…

The previous lab that was conducted dealt with oxidation, which is referred to as a compound gaining oxygen or losing electrons (Wyman, 2015). This week’s lab consisted of a reaction that was the opposite of an oxidation and it is known as a reduction reaction. To be more specific a reduction reaction is when the reactant that is present gains electrons, which is response lowers the overall formal charge of the compound. For instance, if there are two hydrogen ions and each one has a positive…

The goal of this lab was to prepare methyl m-nitrobenzoate using electrophilic aromatic substitution. An example of electrophilic aromatic substitution is nitration where a hydrogen atom which is part of a aromatic ring is substituted by an electrophile. For benzene, aromaticity is a stabilizing feature. As such, instead of undergoing electrophilic additions, it undergoes electrophilic substitutions. The nitronium ion is the electrophile which gets attached to the electron rich aromatic…

My element Sulfur is the most important element there is. The symbol for Sulfur is S. An yellow looking odorless substance that is found underground. Sulfur has an atomic number of 16, atomic weight of 32.065. The element Sulfur is classified as a non-mental with the boiling point of 832.28 degrees Fahrenheit and a melting point of 239.38 degrees Fahrenheit. There are several mixture of sulfur compounds, including the mineral pyrite, or iron sulfide. Each of these types of Sulfur plays its own…