Marc P. Austin
American Military University
20 April 2019
Arsenic is a chemical element symbolized as As.
Atomic number of the element is 33 (Stewart, 2012).
Arsenic is a metalloid.
A metalloid is an element containing various allotropes.
Arsenic appears in different forms.
The element can be yellow, gray or black.
Arsenic can be found in:
The earth’s crust;
Soil, water, air and rock;
Deeply drilled wells;
Pesticides used in agriculture;
Chemicals for preserving timber.
Yellow arsenic (Arsenic | Minerals Education
Gray arsenic (Hanania, Stenhouse & Donev, 2017).
It is silver gray in color.
It has a metallic appearance.
Gray form has a double-layered structure (Arsenic, n.d).
Has six interlocked rings.
Semi-conductor when armophized (Arsenic and Compounds, n.d).
Waxy and soft
Unstable and highly volatile
Atomic number is 33.
Belongs to group 15 family.
Valence of either -3, +3, or +5.
Specific gravity or yellow arsenic is 1.97.
Specific gravity for gray arsenic is 5.73.
Arsenic has properties of both metals and non-metals.
When exposed to hot air, arsenic oxide is formed.
At room temperature, the reaction of arsenic with oxygen is
slow (Nguyen et al., 2018).
It is insoluble in water.
Reacts with acids to form either arsenous or arsenic acid.
Albert the Great discovered the chemical.
The chemical was discovered between the years 1193-1280.
Physicians and poisoners used the chemical frequently.
Craftsmen would use the product often before.
Most people who used in then were not aware of that they
used the arsenic chemical.
Arsenic is used in:
Preserving wood and insecticides
LEDs and laser diodes
Ammunition in lead alloys
Growth and development of a nervous system.
Over 5 mg m-3 is dangerous to one’s health and life (El-Masr
et al., 2018).
The body does not absorb arsenic (Ahmed et al., 2019).
Arsenic compounds are usually highly toxic and
carcinogenic as well.
Arsenic is an element found in nature.
It reacts with oxygen in air to form a compound, arsenic
The element has some benefits that include preservation of
wood and insecticides.
Arsenic is harmful since it is highly toxic.
Ahmed, G., Thakur, A. K., Pushpanjali, null, Snehil, null, Chaturvedi, S. K., Shivam, P., …
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Leishmania donovani in visceral leishmaniasis due to arsenic exposure: An in vitro
study. PLoS ONE, 14(2), 1–16. https://doi.org/10.1371/journal.pone.0210737
Arsenic and Compounds. Retrieved from http://scorecard.goodguide.com/chemicalprofiles/html/arsenic.html
Arsenic | Minerals Education Coalition. Retrieved from
Arsenic. Retrieved from http://www.chemistryexplained.com/elements/A-C/Arsenic.html
El-Masri, H. A., Tao Hong, Henning, C., Mendez Jr., W., Hudgens, E. E., Thomas, D. J., & Lee,
J. S. (2018). Evaluation of a Physiologically Based Pharmacokinetic (PBPK) Model for
Inorganic Arsenic Exposure Using Data from Two Diverse Human Populations.
Environmental Health Perspectives, 126(7), 1–9. https://doi.org/10.1289/EHP3096
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(2018). Speciation Analysis of Arsenic Compounds by HPLC-ICP-MS: Application
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