0
sodium metal is highly reactive, has low melting point and near unversal solubility of its compounds. the elements like N, X, S cannot be detected in organic compounds due to their stable covalent nature. Hence, these are converted into ionic forms by simply fusing with sodium metal and performing simple tests.
Wiki User
∙ 13y ago
Wiki User
∙ 15y agoit is done to test the presence of nitrogen , halogens and othr elements
Add your answer:
Earn +20 pts
Why only sodium is used in Lassaigne's test?
because of its electropositive nature. it is cheap also. although potassium can be used but it is costly... and lithium is less electropositive... Lassaigne's test is a test for the detection of halogens, nitrogen and sulphur in an organic compound. These elements are covalently bonded to the organic compounds. In order to detect them, these have to be converted into their ionic forms. This is done by fusing the organic compound with sodium metal. The ionic compounds formed during the fusion are extracted in aqueous solution and can be detected by simple chemical tests. The extract is called sodium fusion extract or Lassaigne's extract.
Why Na2CO3 is added to solution before Benedicts test is performed?
Sodium carbonate is added with the purpose to increase the pH of the solution.
What color test tube to use in sodium test?
Red
What test can be carried our to confirm the presence of sodium gas in electrolysis?
Electrochemistry is the test that can be carried to confirm the presence of sodium gas in electrolysis.
What is the purpose for producing sodium extract?
hjygtf
What is the purpose of sodium azide in the Bile Esculin test?
The purpose of the bile esculen azide agar is to inhibit the growth of gram-positive organisms.
Why only sodium metal is used for sodium fusion test?
When an organic compound is heated strongly with sodium, any halogens, nitrogen, and sulfur will be converted into inorganic sodium salts such as sodium halide (for halides), sodium cyanide(for nitrogen), sodium sulfide (for sulfur), and sodium thiocyanate (for sulfur and nitrogen).The nitrogen is confirmed with ferrous sulfate i.e. iron sulfate.
Why Na2CO3 is added to solution before Benedicts test is performed?
Sodium carbonate is added with the purpose to increase the pH of the solution.
Why only sodium is used in Lassaigne's test?
because of its electropositive nature. it is cheap also. although potassium can be used but it is costly... and lithium is less electropositive... Lassaigne's test is a test for the detection of halogens, nitrogen and sulphur in an organic compound. These elements are covalently bonded to the organic compounds. In order to detect them, these have to be converted into their ionic forms. This is done by fusing the organic compound with sodium metal. The ionic compounds formed during the fusion are extracted in aqueous solution and can be detected by simple chemical tests. The extract is called sodium fusion extract or Lassaigne's extract.
What are used to identify substances?
odour,melting/boling point,solubility in water,sooty or non- sooty flame on combusion,sodium fusion test,colour on adding KMnO4..
What is the heat of fusion for sodium thiosulfate pentahydrate?
51.8kJ/mol
What color does sodium hydroxide burn in a flame test?
Bright yellow :: This is the sodium ions. Any sodium compound will give a flame test colour of yellow/
What is Procedure of assay test of sodium acid citrate?
assay test of sodium acid citrate
What is the flame color of the compound sodium chloride when heated?
No, sodium chloride is a very stable compound
How is Nuclear fusion used?
In test reactors.
How would you test for sodium chloride?
Determining sodium or chlorine by analytical chemistry methods. In the flame test the color is yellow (from sodium radiation).
What do they use nuclear fusion for?
Nuclear fusion is not used for any purpose at present, it is still in the experimental phase
