Comet is a powdered cleansing product sold in North America and distributed in the USA by Prestige Brands. Scratch Free Comet with Bleach Disinfectant Cleanser contains 1.2% sodium dichloro-s-triazinetrione dihydrate and 98.8% "other" ingredients. The only clues about the other ingredients in the product are disclaimers on the label that mention that the surfactants in the product are biodegradable and that it contains no phosphate. Despite being label as scratch free, its label instructs to use plenty of water on delicate surfaces. Use on silver, painted surfaces, walls, soft plastic, aluminum, and rubber, except for tires, is not recommended. Mixing Comet with other cleansers, specifically toilet bowl cleaners and products that contain ammonia, is also inadvisable. General Name, Symbol, Number sodium, Na, 11 Chemical series alkali metals Group, Period, Block 1, 3, s Appearance silvery white Atomic mass 22. ... General Name, Symbol, Number chlorine, Cl, 17 Series halogens Group, Period, Block 17 (VIIA), 3, p Density, Hardness 3. ... Surfactants, also known as wetting agents, lower the surface tension of a liquid, allowing easier spreading. ... Biodegradation is the decomposition of material by microorganisms. ... In inorganic chemistry, a phosphate is a salt of phosphoric acid. ... General Name, Symbol, Number silver, Ag, 47 Chemical series transition metals Group, Period, Block 11, 5, d Appearance lustrous white metal Atomic mass 107. ... Plastic covers a range of synthetic or semisynthetic polymerization products. ... Aluminum is a soft and lightweight metal with a dull silvery appearance, due to a thin layer of oxidation that forms quickly when it is exposed to air. ... Rubber is an elastic hydrocarbon polymer which occurs as a milky emulsion (known as latex) in the sap of several varieties of plants though can be produced synthetically. ... Ammonia is a compound of nitrogen and hydrogen with the formula NH3. ...

In the 1960s and 1970s, Comet was known for a series of extremely popular television ads featuring the character of "Josephine the Plumber" (played by actress Jane Withers). The outrageously crowded Woodstock festival epitomized the popular antiwar movement of the 60s. ... The 1970s decade refers to the years from 1970 to 1979, inclusive. ... Jane Withers (born April 12, 1926) is an American actress. ...

See also

Biocide contains information about how the active ingredient works when combined with water (see bottom of article).

A biocide is a chemical substance, such as pesticides, which can be fungicides, herbicides, insecticides, miticides, or rodenticides, etc. ...