Chemical process

WHAT IS FORMALIN? Formalin is the trade name for an organic compound made by formaldehyde and water. It has the chemical formula CH2O and its chemical structure is as shown in figure.1. Uses: Formaldehyde is used mainly in the production of plastics (such as urea-formaldehyde plastics which is used in many manufacturing processes due to its useful properties such as flexural modulus, and a high heat distortion temperature, high surface hardness, low water absorption, high tensile strength, mold…

Chemical Engineering While searching for a major and trying to figure out what to do with your life, it is likely that you will come across someone supporting more people in STEM careers. Science, technology, engineering, and mathematics covers a very wide range of education and job opportunities. People who apply these disciplines in their careers are on the frontlines of American technological innovation. Chemical engineering is one of these STEM courses. In short, chemical engineers use…

1. Chemical reactions involved in the oxidation of benzene (adapted from Lupușor et al., 1981) In order to achieve such an analysis, a simplified mathematical model of the reactor was used considering a pseudo-homogeneous, one-dimensional, plug-flow reactor. Model equations are presented in the Table 1 in terms of the mass balance of the considered chemical species, heat and moment balance, with the rate constants given in Table…

and feed a growing population, food companies add harmful chemicals and hormones to speed growth and increase production. This is a an epidemic because everybody is exposed to different kinds of chemicals and food chemicals are the most common. Due to increase in cost for maintaining our food healthy, adding chemicals and hormones drops the price, but has negative affects to the human body internally when consumed. Many different chemicals are added into the food we consume or sprayed on our…

STUDENT NUMBER: 540249 ENVM 665 Risk Management: Question 1 What are the two major general types of chemical sources that result in human exposure to those chemicals and provide a simplified “total” human exposure model showing the pathways that determine the total human dose from those chemicals. The total Human exposure model Source: http://exposurescience.org/a-total-human-exposure-model-them Chemical sources Lead Drinking water. Industrial sources Mercury Manometers Electrochemical…

NiCd is the chemical abbreviation for the composition of Nickel-Cadmium batteries, which are a type of secondary (rechargeable) batteries. Nickel-Cadmium batteries contain the chemicals Nickel (Ni) and Cadmium (Cd), in various forms and compositions. The nickel-cadmium battery, invented by Waldmar Jungner in 1899, offered several advantages over the then only rechargeable battery, lead acid, but the materials were expensive and the early use was restricted. Developments lagged until 1932 when…

Purpose of this lab is to find out how rate of reactions are affected by volume affects and determine which chemical affects the solution rate of reaction. Temperature was also a factor in discovering how it will affect the speed of the reaction. This was done by gathering certain chemicals and mixing them into a test tube then recording how long it took to change color. Temperature was tested by placing the test tube in ice water over a hot plate and slowlying increasing the temperature. Sodium…

information detailing what chemical properties make up the structure of a salt hydrate. It provided essential knowledge proceeding to the successful completion of this lab such as the idea that hydrates are salt compounds which have formed weak bonds to water molecules that can easily be broken through the use of heat. With this information in mind, it was expected that a series of procedural guidelines following this information be used to aid in the identification of the chemical change taking…

Between 1942 and 1953 there was active dumping of chemicals waste into the canal. Document submitted by Hooker to New York interagency task force of hazardous waste, showed that an estimate of about 21,800 tons of chemicals waste from the manufacturing process of the company was dumped in the canal. “These waste were mainly organic pesticide residues, waste solvents, fly ash and process sludge” (Philip, et al. p 313-314). About 6,900 tons of lindane (hexachlorocyclohexanes)…

Carcinogenic Chemical Product: Fire Retardants Fire safety is a vital part of the modern technological society and as responsible citizens it is important to recognise that, with the aid of fire retardants, there is a prolong time frame of escaping from fires. This widely used carcinogenic product is composed of certain chemical elements within numerous everyday products (either inside the polymeric material or as an external layer) that help combat the ignition through chemical reactions at…