Yeah, oh, I wanted to check the chemicals we used in the lab when we analysed those samples — was it potassium chromate and silver nitrate?
没错。对了,我想确认一下在实验室分析那些样品时使用的化学制剂,我们用的是铬酸钾和硝酸银,对吗?
单词 | Potassium chromate |
释义 |
Potassium chromate
原声例句
剑桥雅思听力全真试题 11 Yeah, oh, I wanted to check the chemicals we used in the lab when we analysed those samples — was it potassium chromate and silver nitrate? 没错。对了,我想确认一下在实验室分析那些样品时使用的化学制剂,我们用的是铬酸钾和硝酸银,对吗?
中文百科
铬酸钾![]() ![]() ![]() ![]() 铬酸钾(化学式:K2CrO4)是黄色固体,是铬酸所成的钾盐。铬酸钾中铬为六价,属于二级致癌物质,吸入或吞食会导致癌症。 铬酸钾可由重铬酸钾和碳酸钾反应得到:
或者将氢氧化钾溶液加入至三氧化铬至反应液为黄色时为止,可得到铬酸钾。
英语百科
Potassium chromate 铬酸钾![]() ![]() ![]() ![]() Potassium chromate is the inorganic compound with the formula (K2CrO4). This yellow solid is the potassium salt of the chromate anion. It is a common laboratory chemical, whereas sodium chromate is important industrially. It is a class two carcinogen. |
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