Hydrogen sulfide is a colorless gas with an obnoxious rotten egg odour. H2S is highly flammable, noxious and vitriolic in nature. Many petroleum and natural gas processing industries produces H2S as a by-product gaseous stream. Most H2S in the air comes from natural sulfur cycle. Exposure to H2S can lead to various health issues like burning/tearing of eyes, cough, and shortness of breath. Moderate concentration can lead to respiratory issues. So it is advisable to make use of this gas in other industrial
Within the stages outlines by Love and Marks (2003) each stage is composed of the progressions featured within autolysis and putrefaction. Additional external observations can be seen throughout the process, triggered by the circulatory stasis and tissue necrosis. External gross morphological changes can be seen such as algor mortis, rigor mortis, and livor mortis. Algor mortis consists of the process in which the body slowly cools to the level of ambient temperature at a variable rate (Love and
fuel. Raw biogas contains about 55–65% methane (CH4), 30–45% carbon dioxide (CO2), traces of hydrogen sulfide (H2S) and fractions of water vapours. A typical composition of biogas can be seen on the following table: Table 1: Biogas typical composition Component Formula Concentration (% by vol.) Methane CH4 55-70 Carbon dioxide CO2 30-45 Nitrogen N2 0-5 Oxygen O2 <1 Hydrocarbons CnH2n+2 <1 Hydrogen sulfide H2S 0-0.5 Ammonia NH3 0-0.05 Water (vapour) H2O 1-5 Siloxanes CnH2n+1SiO 0-50 mg/m3 The main
Types of Biogeochemical Cycle Biogeochemical cycle is crucial for every living organism on Earth. It is strongly influenced by life forms, especially plants and microorganisms. A biogeochemical cycle can be defined as a continuous pathway by which conversion and circulation of chemical nutrients through both biotic and abiotic compartments of Earth (Butcher, 1992). Generally, biogeochemical cycles can be classified into three major categories which are nitrogen cycle, sulfur cycle and carbon cycle
Power plants were made to produce energy, but when The Al mishraq power plant explodes, one of the biggest power plants near Mosul, Iraq, it devastated a entire country sending to catastrophe and misery. The Al Mishraq fire was one of the worst man made disasters in the world. On June of 2003 near Mosul, Iraq a fire ignited from the explosion of the state run sulfur plan, Al- Mishraq, which burned for almost a month. “Public Health, 2012”. It devastated millions of lives and caused thousands of people
substitutes – one that can replace (the already not-so-left resources), revive (a less polluting option) and replenish (the present state of livelihood). In this report, I’d discuss about one of the adsorption techniques involved in the removal of hydrogen sulphide – a vital component of biogas which needs to be removed from the source gas (apart from water and carbon dioxide which are in excess proportions and others components found in traces). B. Anaerobic Digestion Anaerobic Digestion is a natural
The fire and explosion at the ConocoPhillips Humber Refinery (16 April 2001) A formal report was made for the incident by COMAH and ConocoPhillips detailing the whole event and the response and action at the time. The events that took place are as follows: On 16 April 2001 an explosion occurred at ConocoPhillips Humber Refinery after the failure of an overhead pipe. An investigation was launched on the incident, which is required under Control of Major Accident Hazards (COMAH) regulations, by the
above the flame. The crucible was heated for about 10 minutes or until all the powder is gone. The crucible is allowed to cool. The coil is massed. Theory: Mass of Sulfide = mass of compound - mass of copper coil Emperical ~ mass of copper coil x ___1 mole___ = ___moles Cu Gram molar mass Cu Mass of Sulfide x ___1 mole___ = ___ moles S Gram molar mass S Emperical Ratio: __moles Cu / ___moles S : __ moles S / __moles S % Composition ~ _mass of element_ x 100 mass of
least 27 cases by the middle of 2011 (Scoville, 2011). While these numbers are only a tiny fraction of the amount of suicid... ... middle of paper ... ... 2010). When treating for hydrogen sulfide exposure, nitrite therapy may be included in order to aid recovery (Oreshan & Stevens, 2011). If exposure to hydrogen cyanide occurred, then the individual should also be given a specific cyanide antidote kit (Oreshan & Stevens, 2011). Overall chemical suicides are a threat that is unfortunately expected
HYPOTHESIS: Once I pour the baking soda solution on the silver it will remove the tarnish from the silver because aluminum is a more active metal than silver causing the silver sulfide to bond to the aluminum. PURPOSE: The purpose of this experiment is to observe an oxidation-reduction reaction. RAW MATERIALS: aluminum foil silver tarnished object- ring Teflon frying pan Pot to boil 1 quart of water baking soda container to measure out 1 quart of water a tablespoon measure wooden spoon
HYDROGEN Hydrogen is a gaseous element, symbol H, usually classed in group 1 (or Ia) of the periodic table Hydrogen melts at –259.2° C (–434.56° F) and boils at –252.77° C (–422.986° F). Hydrogen was confused with other gases until the British chemist Henry Cavendish demonstrated in 1766 that it was evolved by the action of sulfuric acid on metals and also showed at a later date that it was an independent substance that combined with oxygen to form water. The British chemist Joseph Priestley named
controlled nickel sulfide (NiS, NiS2, Ni3S4) nanoparticles were synthesized using a temperature-controlled injection method. In single-solvent experiments oleylamine was used as solvent, in the case of multi-solvent oleylamine, oleic acid and octadecine were mixed together. The respective nickel sulfide phases were synthesized on the reduced graphene oxide (rGO) sheets through the single-step temperature controlled injection processes. The complications in the synthesis of rGO/nickel sulfide phases were
Physical properties:- Molecular Weight. = 28.0536 Triple point temperature °C = -169.164 ̶ Triple point Pressure, kPa = 0.12252 ̶ Freezing point temperature, °C = -169.15 Boiling point temperature, °C = -103.71 ̶ Density of liquid mol/Lit = 20.27 ̶ Specific heat of liquid J/(mol*K)b = 67.4 ̶ Viscosity of fluid
Russia are the world’s leading producers. Nickel can be deposited in two ways: magmatic sulfide and laterite sulfide, it is mainly obtained from the nickel sulfides pentlandite, milarite and pyrrhotite, which hold around 1% nickel substance, and the iron-containing lateritic ores limonite and garnierite, which comprise about 4% nickel substance. Nickel can be extracted directly from its ore by reduction by hydrogen or carbon monoxide at an elevated temperature at 600 ∘C to 650
rarest of all precious metals? It was discovered in 1803 in London by English chemist William Hyde Wollaston. He obtained the metal from an original sample of platinum ore in South America. The product was a dark red powder that Wollaston treated with hydrogen gas in order to get what we now call rhodium. The element name is derived from the Greek word Rhodon, which means rose-colored (Thomas Jefferson NAF). First, rhodium is one of the platinum group metals along with the other elements ruthenium
Corrosion (page no : 2) Corrosion is a natural process, which converts a refined metal to a more stable form, such as its oxide, hydroxide, or sulfide. Corrosion can also be defined as the gradual eating away or disintegration of a metal by chemical or electrochemical reaction with the environment. Disintegration implies to deterioration of physical properties of the material(metal). Apart from
Abstract The purpose for this lab was to use aluminum from a soda can to form a chemical compound known as hydrated potassium aluminum sulfate. In the lab aluminum waste were dissolved in KOH or potassium sulfide to form a complex alum. The solution was then filtered through gravity filtration to remove any solid material. 25 mLs of sulfuric acid was then added while gently boiling the solution resulting in crystals forming after cooling in an ice bath. The product was then collected and filter through
an element other than carbon, most frequently oxygen, nitrogen, or sulfur [1]. The most common heterocycles are classified in aliphatic and aromatic molecule. The aliphatic heterocycles are similar to the open chain analogues, ethers, amines and sulfides. These aromatic compounds follow the Huckel’s rule which states that cyclic conjugated and planar systems having (4n+2) π electrons are aromatic. Those having five or six-membered rings and containing heteroatoms of nitrogen (N), oxygen (O), or sulfur
has dimensions of 75 x 80 x 80 Å. These subunits are further arranged in a triangle consisting of three of these αβγ-trimers denoted as αβγ, α’β’γ’, and α”β”γ”, and this final molecule has the dimensions of 120 Å. These subunits form substantial hydrogen bonds and hydrophobic interactions between them that stabilize the molecule. Each portion of the triangular molecule is composed of specific components of the trimer; the sides consist of α, α’, and α” subunits containing 570 residues of each, the
Sulfur Natarsha Harris Introduction to Chemistry Professor Michael Jones June 7, 2017 Sulfur goes back to the ancient times but it was called brimstone. In 1979, a French chemist named Antoine Lavoisier recognized sulfur was an element and added it to his list of elements. The element sulfur is considered a nonmetal and is the 10th most abundant element in the universe. On the periodic table sulfur is in group sixteen and it is a representative element. Sulfur has an atomic mass