Provides data relating to the chemical and physical properties of the substance naphthalene. Details its general toxicity levels.
Features information about the possible health risks involved with the consumption of naphthalene, the chemical compound found in mothballs.
Offers resources for the study of natural gas including data, and analysis publications, and feature articles.
University of Alberta offers an overview of inorganic chemistry in industry with a study of natural gas and petroleum sources.
Resource provides an overview of the history and properties of natural gas. Focuses on policy concerns and the world's supply of the substance.
Describes the physiological effects of this narcotic found in tobacco.
Offers an overview of the main ingredient in fertilizers and dynamite.
Offers facts about the explosive liquid and glycerol, its nitric acid triester. Includes information about dynamite and Alfred Nobel.
Addresses the difference between medicinal nitroglycerin and the explosive. Learn why nitroglycerin is safe for human consumption.
Find out how this explosive liquid is also used in medical treatments.
Features data relating to the molecular weight, gravity, flammability, and health hazards of the substance, also known as laughing gas.
American Institute of Physics offers a report about finding nitrous oxide in large clouds that are the precursors to planet formation.
Learn about these rocks that contain layers of calcium carbonate or crystals and are formed in shallow water environments.
Provides the chemical breakdown, history, and various uses of this substance known to cause fatal lung damage if inhaled.
Read a basic introduction to the chemical compound phosphoric acid, made from phosphorus and hydrogen, and used in many industrial products.
September, 1999 CNN article reports on a dispute over the findings of a panel which had asserted that these substances are safe.
Reports on 1999 findings by the American Council on Science and Health that these chemicals are not harmful to humans.
Read a book chapter pointing to flaws in research on these substances and emphasizing their alleged dangers to human health.
Sponsored by the American Chemistry Council, this page outlines the uses of these compounds and research supporting their safety.
Defines this class of substances composed of repeating chains of smaller units, known as monomers.
Case Western University presents a virtual lab on polymer science. Conduct experiments in polymer growth and liquid crystallization.
Discover details on the structure and the uses of this common hydrocarbon.
Features data regarding the physical and chemical properties of quartz or silicon dioxide. Includes a list of its uses.
Offers information about the occupational hazards of cancer associated with quartz silica and details its composition.
Provides details about the physical and chemical properties of the nine different varieties of structures in the quartz or silica group.
Read about native mercury and learn about its uses, chemical makeup, and structures. Learn its physical characteristics and see photographs.