Chemistry

Every moment of every day, chemistry plays a part in all we experience. This branch of the Helium network humbly attempts to illuminate the vast array of chemical knowledge, making it accessible to all. Let our site inform, inspire, and awe you with chemical wonders.
A look at sources of carbon monoxide
By: Joseph Sarpy
Silent Death, that's what carbon monoxide is known as. It sneaks up on you without your even being aware it's there, you can't hear it, see it, or taste it and yet, it can kill you. This poisonous gas is colorless and odorless. Carbon monoxide...
A look at sources of carbon monoxide
By: Rachel Coburn Ambler
Exposure to the toxic gas carbon monoxide (CO) can be deadly. Since carbon monoxide is colorless and odorless, it’s important to take precautions to keep your family safe. Here’s a look at sources of carbon monoxide that may be in your home. For...
By: Blaise Pascal
The classic combustion reaction involves the burning of some kind of fuel in the presence of oxygen. The end result is usually carbon dioxide and water but this isn't always true. Sometimes the the reaction between the fuel and oxygen isn't allowed to complete because...
A look at the effects of mercury on humans
By: Maffew James
Mercury is an element which is the only metal that is a liquid at standard atmospheric pressure and temperature. This has earned it the nickname quicksilver, owing to the way the liquid mercury flows quickly across surfaces it has been poured onto. In fact, it...
By: Evelyn Berger
Dorothy Hodgkin, (nee Crowfoot) born on May 12, 1910, was a chemist who is credited with significant contributions to the field of protein crystallography. Born in Cairo, Egypt to British parents, she spent much of her early life in Egypt and returned to England very...
Biological chemical reactions: Bioluminescence explained
By: Dr Pandula Siribaddana
Bioluminescence is the term describing the emission of light by living organisms as a result of various biochemical mechanisms involving a catalyzing enzyme. Although various species could have different processes in the production of light, the occurrence of bioluminescence will differ from other means of...
By: Dr Pandula Siribaddana
Reactive Oxygen Species (ROS) are oxygen containing molecules which include oxygen ions as well as peroxides. ROS are produced as a natural byproduct following normal cellular metabolism of oxygen and play a vital role in the cellular signaling mechanisms and maintenance of the cellular environment...
By: Janet Grischy
Some red tides, foxfire, and fireflies are examples of remarkable biological chemical reactions. Bioluminescence is light produced within a living organism, usually by the chemical reaction of luciferin with luciferase. Named for Lucifer, the light-bearer, the compounds produce an eerie yet fascinating glow. Fireflies and...
By: William O'Neal Stringer
An unrefined form of carbon black was first produced by the Chinese about 3,500 years ago. Another source from the ancient past would be forest fires where the incomplete combustion of wood has occurred. Early forms of carbon black were impure and their chemical...
By: Lane Olinghouse
American Heritage Dictionary: "Carbon black: A finely divided form of carbon derived from the incomplete combustion of hydrocarbons and used principally in rubber, inks, paints and polishes." Carbon black, also once commonly known as lamp black or furnace black, has many commercial uses. Tire...

 

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