Andre Green
Science Matter
Research PW: 10
March 16, 1998
Will Certain
Household Items
Prevent Rusting?
Table of Contents
Acknowledgements .2
Question ...3
Hypothesis 4
Research 5-7
Glossary of Terms ..8
Materials .9
Experimental Procedure ..10
Conclusion ...12
Bibliography .13
Acknowledgement
I would like to thank my wife for assisting me with my project, and for going out and buying the things I needed.
Green Page 2
Question:
Will certain household items prevent rusting?
Hypothesis:
My hypothesis is that the following materials will prevent the process of rusting. The materials are dish washing liquid, Vaseline, and paint (Rustolium.)
I think Vaseline will prevent rusting the most, then paint, and finally dish washing liquid.
Background
Iron is a silvery white solid metal. It appears in-group VII of the
periodic table as a transition element. Its atomic number is 26, and its
atomic weight is 55.847. Its chemical symbol, Fe, is retrieved from ferrum,
the Latin word for iron. In its various compounds, iron is the fourth most
abundant element in the Earth's crust. Iron is soft and malleable and ductile
at room temperature. It melts at 1,535 degrees Celsius and boils at 3,000
degrees Celsius. Pure iron can exist in two structural types, or allotropic
forms. They are a-form and gamma-form.
Corrosion is the natural deterioration or destruction of a material as a
result of its interaction with the environment. The term is applied mostly to
metals and particularly to their reaction with oxygen, or rusting. The cost of
replacing corroded equipment and protecting existing structures exceeds $10
billion dollars each year in the United States. Corrosion of metals is
generally confined to the surface. The most common means of thwarting
corrosion is to apply a resistant surface coating or lining. Paint, plastic,
rubber, and ceramics are commonly used, and metals are often plated with a
more resistant metal such as nickel or chromium. Iron is easily oxidized and
it reacts directly with most common nonmetallic elements. The most
important chemical reaction of iron is corrosion. When corrosion occurs,
water and oxygen interacts with iron and creates iron oxide or rust. The
corrosion of iron has been studied very carefully. The formation of rust is
known to be a electrochemical reaction. In order for rust to form at room
temperature , three compounds in addition to iron must be present: oxygen,
water, and electrolyte. Iron that is partially immersed in salt or freshwater
usually rusts more quickly than does iron that is totally immersed.
Formation of rust begins when the relative humanity exceeds 50%. The
presence of air pollutants, particularly the oxides of sulfur, increases the
the rate in which rust forms. The formation of rust may be inhibited by
using a certain oxide protective coating.
Mineral, a household item, is a clear, colorless liquid, without order
or taste, that is used medicinally as a lubricant and laxative, as an oil base in
cosmetics, and as an ingredient of paints and varnishes. It is also called
liquid petrolatum or petroleum jelly, used in ointments and dressings.
Another household item that I used in my project was paint. The
chemicals in this rust resistant paint were toluene and xylene.
They are petrochemicals produced from natural gas liquids, or refinery
products derived from crude oil distillation, or cracking. First stage
petrochemicals, including ethylene, propylene, butylenes, benzene,
toluene, and xylenes are produced as a starting point for a number of
secondary petrochemicals that are transformed into a variety of
petrochemicals and products. These are some of the products: Plastics,
Solvent, Synthetic Fibers, Elastormers, and other essential commodities.
Some of the products referred to as petrochemical were in the past
produced from charcoal, coal-tar distillation by products, Acetylene, or
fermentation alcohol. The growth of refining industry is the United States,
based on abundant petroleum and natural gas resources as well as on the
development of advanced thermal and catalytic oil-cracking processes,
created the conditions for the present petrochemical industry.
Oxygen is the most abundant element on Earth. Oxygen is practically
in everything form animals to plants to humans. Oxygen is also found in
minerals such as diamonds and gems, rocks, and a lot of other things. The
atomic number of oxygen is 2 its atomic mass number is 15.9994.
Oxygen's chemical symbol is O.
Glossary of Terms
Materials
Experimental Procedure
Observations
Vaseline Paint washing liquid Sunday No change no change No change
Feb 8
Sunday No change Paint started Nail began to
Feb 15 to wear off tarnish.
Sunday No change started to the nail began to
Feb22 at all tarnish a little rust
Sunday No change Began to rust more rust starts
Mar 1 at all to form
Sunday the tips of Water changed the rust became
Mar 8 nail began to another color more visible
to rust and more rust
Sunday Not much Not much of Not much of a
Mar 15 of a change a change change
Conclusion
My conclusion is that the Vaseline is the technology that prevented
the rusting the most, then the paint, and finally the dish washing liquid. The
reason why I think the Vaseline corroded the least of all the substances, is
because of its thick coating made of mineral oil. Mineral oil is also used in
car's engines to prevent rusting in the engine. It is used in a form called oil.
Usually people don't coat things with Vaseline naturally, but the mineral oil
inside of the Vaseline is what makes it important.
Bibliography
Anderson, Jan. Science and Technology. New York: 1993
Grolier Educational Corporation.
Knapp, Brian. Grolier Educational. Atlanta: 1996
Atlantic European Publishing. Pg. 30-31.
Knapp, Brian. Iron. Atlanta: 1996
Atlantic European Publishing. Pg., 8-9
Lee, Gary. King Fisher Science. New York: 1991
Scholastic Publisher. Pg. 156-157