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  • noun Plural form of hydroxide.


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  • Dragons not only produce methane but also a combination of hydroxides as part of their metabolism.

    Here Be Dragons on Mars! | Universe Today 2009

  • We got, you know, iodine and red phosphorous and acetones and muriatic acid and sodium hydroxides, all chemicals that are used to cook the drugs.

    CNN Transcript Aug 4, 2009 2009

  • Leaching of all soluble elements of the deeply decayed rock produces Ultisols and Oxisols that are often especially rich in hydroxides of iron, magnesium, and aluminum.

    Rainforest Division (Bailey) 2009

  • Because aluminum metal reacts with water and air to form powdery oxides and hydroxides, aluminum metal is never found in nature.

    Aluminum 2008

  • The 1998 Science article contended that 80 samples of rock varnish -- a coating (consisting of clay minerals, iron and manganese hydroxides and oxides, and small amounts of organic matter) that forms on exposed rock surfaces in deserts -- contained pieces of what appeared to be coal and charcoal-like material.

    Dating Controversy Lawsuit 1999

  • - Toxic flotation reagents: those reagents most commonly used in small-scale mining in Latin America are sulfuric acid, diesel oil and long-chained carbon-hydroxides (frothers and collectors) such as xanthate.

    Chapter 20 1993

  • The oxides, hydroxides, and phosphates of iron, zinc, copper, and manganese are insoluble but the sulfates are soluble and can be sprayed on leaves where they are absorbed through the stomata.

    5. How plants live and grow 1991

  • The formation of the insoluble hydroxides depends on the ph: it has been shown that aluminium sulphate coagulates best in a ph range between 4.4 and 6.

    3. Technologies 1985

  • The absorbing material must contain iron in the form of oxides, hydrated oxides or hydroxides.

    5. Methods for removing hydrogen sulphide from biogas 1985

  • Willstätter carried out important studies of adsorbents, metal hydroxides, hydrogels and silicic acids.

    Richard Willstätter - Biography 1966


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