See colloid. 参阅 colloid。...[继续阅读]

    An alternative spelling ofkilogram.千克的另一种拼写。...[继续阅读]

    A black mineral that consists mainlyof carbon,used as a fuel and as a source oforganic chemicals. It is the fossilized re-mains of plants that grew in the Carbonif- erous and Permian periods and were buriedand subjected to high pressures under-ground. The...[继续阅读]

    See hydrogen ion. 参阅hydrogen ion。...[继续阅读]

    Swedish chemist. Tiselius is best knownfor developing electrophoresis as a tech-nique for studying proteins. He was able toseparate the proteins in horse serum usingthis technique and to confirm that there arefour types of proteins:albumins and alpha,beta...[继续阅读]

    An amorphous form of carbonmade by heating wood or other organic ma-terial in the absence of air. Activated char-coal is charcoal heated to drive off absorbedgas. It is used for absorbing gases and forremoving impurities from liquids.碳的无定形形式,是在缺乏空气的条件下加热木...[继续阅读]

    See propenoic acid.参阅propenoic acid。...[继续阅读]

    The sodium salts of organicacids used in the dyeing of silk and wool.They are so called because they are appliedfrom a bath acidified with dilute sulfuric orethanoic acid.用于丝和羊毛染色的有机酸的钠盐。之所以这样命名,是因为它们经稀释的硫酸或乙酸酸化处理过。...[继续阅读]

    -malanoni-trile;C6H4ClCH : C(CN)2) A white or-ganic compound that is a nasal irritant usedin powder form as a tear gas for riot con-trol.[2-氯苯亚甲基丙二腈,C6H4ClCH=C(CN)2] 一种有刺激性气味的白色有机化合物,它以粉末状用作控制暴乱的催泪瓦斯。...[继续阅读]

    Swiss organicchemist. Karrer was famous for his workon vitamins and vegetable pigments. In1930 he determined the structure of caro-tene. In 1931 he synthesized vitamin A,having worked out the structure. Karrerwas aware of the similarity between thetwo mol...[继续阅读]