铬酸
铬酸，化学式为H2CrO4，是三氧化铬溶于硫酸以及铬酸盐/重铬酸盐酸化时生成的化合物之一。重铬酸是二分子铬酸脱水形成的多酸，化学式为H2Cr2O7。三氧化铬是铬酸的酸酐，室温下为橘红色固体。由于它可通过加浓硫酸于铬酸盐或重铬酸盐的水溶液沉淀出来，故在工业上曾长期被称为“铬酸”。
铬与同族的钼、钨不同，形成多酸的倾向不强，超过四铬酸以上的多铬酸很少见。这些化合物中都含有正六价铬，具有致癌性和氧化性，酸性溶液中的还原产物一般为紫色的[Cr(H2O)6]离子。
chromic acid
英汉-汉英词典
[化]铬酸
词组 | 习惯用语
您要查找的是不是：
Chromic Acid Mist 铬酸雾
Chromic acid chloride 铬酰氯
Chromic acid fog inhibitor 铬雾抑制剂
Chromic acid and chromates 铬酸及铬酸盐
cerosic acid 蔗蜡酸; 廿四烷酸; 廿四酸; 翻译;
carolic acid 肉霉酸; 翻译; 卡若酸英语;
chloric acid 氯酸
ceropic acid 松针酸英语; 翻译; 松针酸;
chromic acid [无化] 铬酸
chromic acid mixture 洗液,铬酸混合液
chromic acid cell 铬酸电池
chromic acid battery 铬酸电池
suppressant of chromic acid mist 抑铬酸雾剂
中文百科
英语百科
Chromic acid 铬酸
The term chromic acid is usually used for a mixture made by adding concentrated sulfuric acid to a dichromate, which may contain a variety of compounds, including solid chromium trioxide. This kind of chromic acid may be used as a cleaning mixture for glass. Chromic acid may also refer to the molecular species, H2CrO4 of which the trioxide is the anhydride. Chromic acid features chromium in an oxidation state of +6 (or VI). It is a strong and corrosive oxidising agent.
近义、反义、联想词
近义词
n.acid
英英词典
chromic acid n.
- an unstable acid known only in solution and as chromate salts
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