Background/Introduction Arsenic is a naturally occurring element that has been known to be a very toxic poison for hundreds of years. This metalloid has properties of metals and nonmetals. It has two forms, the organic forms including arsenobetaine, arsenocholine, MMA and DMA and the inorganic forms including As (III) and As(V). This poison can be dated as far back as 3000 years ago in Chinese medicine that is still used today. Egyptians used arsenic as a way to harden copper and as embalming fluid
Arsenic Element 33: Arsenic Abstract Arsenic is element 33 on the periodic table and is in Group 15. Arsenic is obviously an extremely poisonous element; however, some people have found arsenic to have a restorative effect on them. Chemically, arsenic is a metalloid. Two common forms of arsenic are gray and yellow. (see Figure 1-A) Element 33 has an atomic weight of 74.9216 and the chemical symbol of As. It boils at 613ºC, melts at 817ºC, and has a density of 5.72. (see Figure 2-A)
A huge fascination of arsenic started in the 19th century when people got word of a province in southeastern Austria where people ate arsenic. Women would eat arsenic to help gain weight and fix their complexion to look more beautiful and men would eat arsenic because they believed it helped them breath easier when they were climbing high up in the mountains. One doctor by the name of Dr. Robert Craig MacLagan, was particularly interested in this and visited the town to see for himself what was really
clouds of gas killing 5,000 soldiers and putting 1,500 more out of the war. This caused great panic because nothing like this had happened before and wasn't expected by the allies. Previous to this event in the Middle Ages they used such things as arsenic and more natural things as chemicals which were as powerful as the chlorine gas ended up being in WWI. Chemical weapons were used many times after the Germans used chlorine gas in WWI, chlorine, phosgene, benzyl bromide, hydrogen cyanide, and then
imagination to play with cards that neither talk nor move and alot of creativity to design a deck of Magic or Pokemon cards. Another thing that makes Top Deck so interesting to its audience is the sarcastic tone of writing that laces the sentences like arsenic. An article contained in the section called Top Disc, on E3 (Electronic Entertainment Expo) previews computer and console games that will be released for the rest of this year and possibly next year (35-45). The article is sometimes humorous to read
advanced in the 5th century BC by Empedocles—that all things are composed of air, earth, fire, and water—was influential in alchemy. The Roman emperor Caligula is said to have instituted experiments for producing gold from orpiment, a sulfide of arsenic, and the emperor Diocletian is said to have ordered all Egyptian works concerning the chemistry of gold and silver to be burned in order to stop such experiments. Zosimus the Theban (about AD 250-300) discovered that sulfuric acid is a solvent of
time by her father. During this time she meets Homer, a man the townspeople consider beneath her who seems to almost replace her father. She finally seems to have found happiness, but is then seen buying poison in the local drug store. She asks for arsenic and refuses to tell the druggist what it is for. The townspeople think she is going to kill herself. Later they will find out how wrong they were! The townspeople try to pressure Miss Emily to marry Homer because they call their relationship improper
differences between animals and humans. ¨ Rats are 37% effective in identifying what causes cancer in humans. (Vivisectors don't have a clue and flipping a coin would be more useful). ¨ According to animal tests lemon juice is a deadly poison but arsenic, hemlock and botulin are safe. ¨ 95% of drugs passed by animal tests are immediately discarded as useless or dangerous to humans
summer of Emily’s father’s death. They started seeing each other but Homer would rather hang out with the guys than hang out with Emily. He was not the marrying type. When Emily figured this out she bought some arsenic from a druggist. The townspeople thought she was going to use the arsenic to kill herself. However the next week they were sure homer and Emily would get married because Emily had been seen at the jeweler’s ordering a man’s toilet set in silver, with the letters H.B. on each piece
The symbol “As” from the periodic table, belongs to the chemical element Arsenic. Its located in group 15, period 4, and is clasificat as semi-metals. Arsenic’s atomic number is 33, and has a density of 5.776 grams per cubic centimeter. Arsenic melting point is 1090 K (817°C or 1503°F) and the boiling point is 887 K (614°C or 1137°F). The element specific gravities are 1.97 and 5.73, they are respectively to his two solid modifications: yellow, and grey (or metallic). Arsenic’s appearance is steel
such as wood, paper, textile, farm sprays, and Hospital disinfectants. To get pure tin you must first find ore cassiterite or tin stone, a dioxide of tin. The ore cassiterite before smelting and roasting must be crushed into a powder to remove the arsenic and sulfur from the ore cassiterite. When you smelter the tin you must heat it with carbon to remove the zinc, copper, bismuth, and iron from the tin. Tin had been used for many things but tins use is dropping rapidly although tin is still used a
upon the factors involved. These factors need to be looked at when determining an ecosystem's disturbance by a pollutant. Some of the most frequent pollutants in our ecosystem include: gases such as sulphur dioxide, elements such as mercury and arsenic, and even pollution by nutrients which is referred to as eutrophication. Each of these pollutants pose a different effect on the ecosystem at different doses. This varied effect is what is referred to as dose and duration. The amount of the pollutant
Acid rain is a very big pollution problem in the world. It has killed fish and other aquatic life in many lakes and streams. It harms human health, disfigures monuments and erodes buildings, and, along with other pollutants, threatens forests. The story of acid rain can be compared to the plot of a science fiction movie. In the 1950s an invisible force begins to destroy lakes and rivers, killing trout and salmon. By the 1960s it is harming the waters of eastern Canada and the northeastern United
Atlantic Packaging Products Ltd., focused on delivering quality sustainable packaging products to large and small customers which is a privately owned company that has been in business since 1945, when Abraham Granovsky and his son Phil first opened the actual facility in Scarborough, Toronto (Atlantic Packaging Products Ltd, 2016). They use recycled corrugated products for packaging which helps reduce the overall environmental carbon footprint. By choosing these packaging products we reduce the
The Sulfur Dioxide in Environment The sulfur dioxide was regarded as the acknowledged toxic gas, and is also one of main factors for acid rain. Due to its severe toxicity, the major pollution incidents have even happened in human beings’ history. During 1st December and 15th December 1930, the toxic gases including the sulfur dioxide caused great loss for Meuse Valley in Belgium. The toxic gases led to thousands of people in the industrial zone of Meuse Valley were catched with respiratory diseases
Arsenic Accumulation By Hemanth Ande Research Plan A. Specific Aims Arsenic is a common element that has been part of the human civilization for more than 2000 years. It has been used as medicine in the western and eastern world in ways that would not be sanctioned today. In modern times Arsenic is used in agricultural, medical use and industrial use. Although it is considered a toxic compound in high dose, humans are exposed to the compound every day. Currently there is no comprehensive report
Arsenic, a heavy metal with an unknown biological function, is widely acknowledged for its biological toxicity in human health. The occurrence of Arsenic in the immediate environment comes both as a result of natural (e.g. naturally contaminated groundwater) and artificial (e.g. percolation of water from mines) causes. Arsenic is a highly occurring contaminant in groundwater in many areas of the world. These include countries such as Cambodia, Argentina, Chile, Hungary, Mexico, Bangladesh and the
for substantial contribution to Indian economy and also provides livelihood to millions of people. Fishes are highly nutritious and consumed as a delicacy food throughout world. A variety of contaminants including to toxic heavy metals (cadmium, arsenic, mercury, lead) are ubiquitously found in rivers, reservoirs and are disadvantageous for aquatic life.[2] The term “heavy metal” assumes a variety of different meanings throughout the different branches of science. Metals were firstly used by primitive
common solvents. Sulphur can also vary in color and blackens upon boiling due to carbonaceous impurities. Even as little as 0.05% of carbonaceous matter darkens Sulphur significantly. 3.2.4 THALAGAM IUPAC Name: Arsenic trisulfide Other names Arsenic(III) sulphide, Orpiment, Sulphuret of arsenic General Description: A yellow or red crystalline solid or powder. Combustible. Insoluble in water. Toxic by inhalation (dust) and ingestion. Air & Water Reactions: Insoluble in