Sulfide

Introduction: Hydrogen sulfide (H2S) is the latest molecule added to the gasotransmitter group after nitric oxide (NO) and carbon monoxide (CO). Great attention has been given to H2S in the last few years with regards to its production, metabolism, physiological functions and clearance. H2S constitutes a sound example of science’s evolution based on research and development; since H2S has been named as a toxic gas since its discovery in 1713, and only in the late 80’s of the past century scientist

Recent Advances in Deepwater Technologies (Corrosion and Control for Subsea Engineering Applications) Abstract The purpose of this technical literature review is to pinpoint the most significant advances in deep water technologies as regards corrosion and its control in the past two decades. A review paper like this with the apportioned space will not be able to do justice to all the new technologies, particularly those that are step-by-step advances to now well established techniques. I will discuss

obtain certain reactants that were already part of the product. In three trials, the zinc chloride’s mass ranged from 1.16 g to 1.62 g. Mass of the chlorine found in the zinc chloride ranged from 0.66 g to 0.96 g. In the three trials of the copper sulfide lab, the copper sulfide’s mass ranged from 2.38 g to 3.18 g. The mass of the sulfur in this lab ranged from 0.64 g to 1.51g. Introduction: Chemical formulas indicate how new compounds are formed by chemical combinations of other compounds. To understand

crude is preferred to sour crude [1].When distillate crude oil is processed into useful products, there will be many wastes, which dissolve in water thereby producing sour water. However, sour water consists of hazardous substances, mostly hydrogen sulfide (H2S), therefore it must be treated prior to the discharge for reuse or disposal to the water bodies. In addition, polluted water is fatal to benthic organisms and also causes depletion of dissolved oxygen [2]. This has led to some industries facing

home to the MinnTac facility, the largest iron ore operation in the Unites States. However, the proposed PolyMet sulfide mining project would be the first of it’s kind in the state's history. In order to protect and conserve the environment along lake Superior in Minnesota, and keep local residents safe, the PolyMet mining project should be stopped. I will firstly discuss what “sulfide mining” really is, and what the impacts of a mine this size would be for both the environment and the people of Minnesota

the loud, ongoing sounds of drilling and being told the fish were too dangerous to eat. This is only one of many potential harms of sulfide mining. PolyMet, a new mining company would like to bring sulfide mining, also known as copper-nickel mining to Minnesota. This would involve the extraction of copper and various other metals from sulfide, hence the name. The sulfide that comes out of this type of mining can have serious consequences on the environment. Events that occurred in the past and facts

Unknown Lab Report Unknown Organism #6 Ann Le (Phuoc) May 6, 2010 Dr. Carrington Microbiology Lab- MW 12:50 Le 1 I. Introduction My unknown organism #6 is Morganella morganii, which is a gram-negative bacillus rods commonly found in the environment and also in the intestinal tracts of humans, mammals, and reptiles as a normal flora. (3, 5) This bacterium Morganella morganii, was first discovered in the 1906 by a British bacteriologist named H. de R. Morgan. (2) Despite its wide

extremely prominent among the ancient Egyptian culture. Unfortunately the Egyptians traded their beauty for health because the chemical makeup of their turquoise eye paint was Galena, the mineral form of lead sulfide (PbS) . Unbeknownst to the ancient Egyptians even the smallest exposure to lead sulfide can lead to lead poisoning, and in their case it became an epidemic. In todays society makeup and other cosmetics are more common than ever and this time without any deadly side effects. Multiple forms

municipality on almost everyday basis experiences odors that are dispersed as the water flows over the El Salto Waterfalls. The odor that stands out the most, is hydrogen sulfide, which is a colorless, poisonous, and flammable gas that smells similar to rotten eggs (Vida Instituto & IMDEC, n.d.). Exposure to low concentrations of hydrogen sulfide can cause, irritation to the eyes, nose, or throat, difficulty breathing, fatigue, headaches, poor memory, irritability, dizziness, and poor motor function (Vida

Brittni Curry Case Study Interactions of Hazardous Materials In the incident that occurred at SJV Refinery which processes crude oil daily by utilizing the Atmospheric/Vacuum Distillation process. Improper release of command during construction plans led to the uncontrolled release of acid gas into atmosphere. A welder was in close proximity of the gas, causing the gas to ignite. The area was evacuated and the emergency response team began to take command, following set emergency