American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Of, relating to, or containing tin, especially with valence 2.
Century Dictionary and Cyclopedia
- Of, pertaining to, or containing tin: specifically applied to those compounds in which tin appears as a bivalent atom: as, stannous oxid, or protoxid of tin (SnO).
- adj. chemistry Containing bivalent tin.
GNU Webster's 1913
- adj. (Chem.) Pertaining to, or containing, tin; specifically, designating those compounds in which the element has a lower valence as contrasted with
- adj. of or relating to or containing tin
- Late Latin stannum, tin; see stannic + -ous. (American Heritage® Dictionary of the English Language, Fourth Edition)
“Another preparation of tin is known as stannous gold; it is manufactured in heavy sheets and used the same as cohesive gold foil, and can be easily manipulated, for it is rather plastic.”
“In addition to forming fluorapatite crystals like other fluorides, stannous fluoride also has a toxic effect on acid-producing mouth bacteria, says biochemist Matthew J. Doyle, director of global research and development for P & G's oral-care division.”
“P & G's Crest Pro-Health Enamel Shield, which came out last year, is made with a particular type of fluoride called stannous fluoride.”
“In the decades since 1955 when Crest with stannous fluoride first hit the market, it's become hard to find a toothpaste without fluoride.”
“The inner coating of the can was found to be badly eroded, and upon examination, as reported in Serial No. 563, below, one pound of the pumpkin contained tin salts equivalent to 7 maximum and 56 minimum doses of stannous chloride.”
“The results of the examination as reported in Serial No. 552, below, showed that the canned pumpkin contained an amount of stannous salts equivalent to 6.4 maximum doses and 51.4 minimum doses of stannous chloride per pound.”
“The ease with which stannous chloride takes up chlorine to form stannic chloride makes it a good reducing agent in many reactions, changing the higher chlorides of metals to lower ones.”
“By treating a solution of stannous chloride with aqua regia, stannic chloride is formed:”
“If the stannous chloride is in excess, the reaction may go further, producing metallic mercury:”
“~ Tin forms two series of compounds: the stannous, in which the tin is divalent, illustrated in the compounds SnO, SnS,”
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