burning metal powder
2012-03-21 6:54 pm
I want to know about the process of burning metal powder. I only remember the principle is to use a platinum wire to dip the metal powder to be burnt on the top of the Bunsen burner. After burning the metal, the wire is cleaned by using an acid. But I forget the name of the acid.
回答 (3)
2012-03-27 5:51 am
✔ 最佳答案
Dip the Platinum Wire into concentrated Hydrochloric acid.Dip the Platinum Wire in the sample
Heat the sample strongly under non-luminous flame.
Observe the flame colour and deduce the presence of corresponding metal ions
2012-03-22 2:13 am
It is not burning metal powder.
But flame test, for testing the existence of certain metal ions by identifying the flame colour.
For the acid, to be accurate it should be concentrated hydrochloric acid(conc. HCl)
2012-03-21 18:28:36 補充：
**Hydrochloric acid is definitely correct, since the question is only asking for the name of acid.
2012-03-22 19:16:45 補充：
What process?
Mechanism? Or Experiment procedures?
But flame test, for testing the existence of certain metal ions by identifying the flame colour.
For the acid, to be accurate it should be concentrated hydrochloric acid(conc. HCl)
2012-03-21 18:28:36 補充：
**Hydrochloric acid is definitely correct, since the question is only asking for the name of acid.
2012-03-22 19:16:45 補充：
What process?
Mechanism? Or Experiment procedures?
參考: 黑白灰_唯物主義者
2012-03-21 7:04 pm
It is flame test.
The name of the acid is called hydrochloric acid (HCl).
2012-03-21 11:05:17 補充：
http://en.wikipedia.org/wiki/Flame_test
The name of the acid is called hydrochloric acid (HCl).
2012-03-21 11:05:17 補充：
http://en.wikipedia.org/wiki/Flame_test
收錄日期: 2021-04-13 18:34:59
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