Detection of Elements by Lassaigne’s Solution(Sodium Extract):

Lassaigne’s solution or sodium fusion extract should be prepared to detect Nitrogen, Sulphur and halogens in the given organic compound.

Why do we prepare Lassaigne’s solution?
Materials Required for Lassaigne’s solution:
Following is the list of materials required for the preparation of lassaigne’s solution.
- Sodium metal
- Distilled water
- Organic compound
- Test tube
- Fusion tube
- China dish
- Funnel
- Wire gauze
- Tripod stand’
- Filter paper
- Glass rod
- Bunsen burner

Lassaigne’s solution Preparation Procedure :
Step 1:
Take a small piece of dry sodium metal in a fusion tube.
Step 2:
Heat the fusion tube gently on the Bunsen burner to melt sodium metal.

Step 3:
Add a small amount of organic compound to a fusion tube.

Step 4:
Heat it first gently & then strongly the tube becomes red hot.

Step 5:
Break this fusion tube into a china dish containing 20cm3 of distilled water.

Step 6:
Mix ,boil & filter the solution .

Step 7:
This filtrate is called Lassaigne’s solution or sodium extract

Then divide the filtrate (Lassaigne’s solution ) into three parts to test the presence of N, S & halogens.
It is based upon the fact that when an organic compound containing nitrogen, sulphur and halogen is strongly heated with metallic sodium, its nitrogen converts to ionic NaCN (sodium cyanide), sulphur to ionic NaS (sodium sulphide) and halogen to ionic NaX (sodium halide) if they are present.
What is the purpose of preparing sodium extract or Lassaigne’s solution?
In elemental analysis, the sodium fusion test, also known as Lassaigne’s test, is used to qualitatively determine the presence of foreign elements, notably halogens, nitrogen, and sulphur, in an organic compound.
Which metal is used in Lassaigne’s test?
In Lassaigne’s test, sodium is utilised due to its electropositive character and to transform covalent form to ionic form. It has a very reactive nature.
Recommended video:
Related videos !!
Check out!!
-> Class 10 Chemistry Full book pdf
-> Class 11 Chemistry Full book pdf
-> Class 12 Chemistry Full book pdf
For joining best Chemistry Coaching
I was pretty pleased to discover this page. I wanted to thank you
for your time for this fantastic read!! I definitely loved every part of it
and I have you bookmarked to check out new information on your site.
It’s very effortless to find out any topic on net as compared to textbooks, as I found this article at
this web page.
Hi i am kavin, its my first time to commenting anywhere, when i read this paragraph i thought i could
also create comment due to this brilliant article.
Great beat ! I wish to apprentice while you amend your site, how can i
subscribe for a blog website? The account aided me
a acceptable deal. I had been a little bit acquainted of this your broadcast offered bright clear idea
You truly make that seem quite simple with your organization business presentation but Everyone find
this type of matter having actually a problem that I think Let me
never benefit. It seems too complex and extremely broad privately.
I am looking forward to your forthcoming post, In poor health try to get useful to
it!
really good evaluation. I hope you can continue to work so that
you can place insight around the readers with this website.
As well visit my, personal site to get each of the latest content
or blog articles about togel.
For latest information you have to visit world
wide web and on web I found this web site as a best site for most recent updates.
Hi there, I log on to your new stuff on a regular basis.
Your story-telling style is awesome, keep it up!
Excellent post. I certainly love this website.
Keep it up!
I think the admin of this web site is really working hard in support of
his web site, as here every stuff is quality based stuff.
Very good write-up. I certainly appreciate this site.
Stick with it!
Hi there, just became aware of your blog through Google, and found that it is truly informative.
I’m gonna watch out for brussels. I’ll appreciate if you continue this in future.
Numerous people will be benefited from your writing.
Cheers!
Wow, that’s what I was seeking for, what a stuff!
present here at this web site, thanks admin of this website.
whoah this blog is magnificent i really like studying your
articles. Keep up the great work! You realize, lots of individuals are
looking round for this info, you could help them greatly.
Hi there, just became alert to your blog through Google, and found that it’s really informative.
I’m going to watch out for brussels. I will appreciate if you continue this
in future. Many people will be benefited from your writing.
Cheers!
Remarkable issues here. I’m very satisfied to peer your post.
Thanks a lot and I am looking ahead to touch you.
Will you please drop me a e-mail?
What’s up to all, the contents existing at this
web page are really remarkable for people experience, well, keep up the good work fellows.
I am regular visitor, how are you everybody?
This paragraph posted at this web page is truly good.
It’s actually very complex in this active life to listen news on Television, therefore I simply use web
for that purpose, and take the most up-to-date information.
Hey there just wanted to give you a quick heads up.
The text in your article seem to be running off
the screen in Ie. I’m not sure if this is a format issue or something to do with web browser compatibility
but I thought I’d post to let you know. The design and style look great though!
Hope you get the issue resolved soon. Thanks
This piece of writing will help the internet users for building up new website or
even a blog from start to end.
I really like it whenever people come together and share views.
Great blog, stick with it!
Right now it appears like Movable Type is the top blogging platform available right now.
(from what I’ve read) Is that what you are using on your blog?
I’m really inspired together with your writing skills and
also with the format in your blog. Is that this a paid theme
or did you modify it your self? Either way keep
up the nice high quality writing, it is rare to peer
a nice blog like this one today..
Exceptional post however , I was wanting to know if you could write a
litte more on this subject? I’d be very grateful if you could
elaborate a little bit more. Cheers!
Do you mind if I quote a couple of your articles as
long as I provide credit and sources back to your webpage?
My blog site is in the very same area of interest as yours and my visitors would certainly benefit from a lot of the
information you provide here. Please let me know if this okay with you.
Thank you!
Excellent post. Keep posting such kind of info on your blog.
Im really impressed by it.
Hey there, You have performed an incredible job. I’ll definitely digg it and
individually suggest to my friends. I’m sure they will be benefited from
this site.
Good information. Lucky me I came across your site by chance (stumbleupon).
I have book marked it for later!
Fantastic beat ! I wish to apprentice while you amend your website,
how could i subscribe for a blog website? The account helped me a
acceptable deal. I had been tiny bit acquainted
of this your broadcast provided bright clear idea
First off I would like to say terrific blog! I had a quick question that I’d
like to ask if you do not mind. I was interested to know how you center yourself
and clear your mind prior to writing. I have had a tough time clearing my thoughts in getting
my thoughts out there. I truly do enjoy writing but
it just seems like the first 10 to 15 minutes are generally wasted simply just trying to figure out how to begin. Any ideas or
hints? Thanks!
Every weekend i used to pay a quick visit this web site, because i want enjoyment, since this this website conations really pleasant funny data too.
Excellent goods from you, man. I have keep in mind your stuff previous to and you are simply extremely excellent.
I actually like what you’ve bought here, really like what you’re stating and
the way in which wherein you assert it. You’re making it enjoyable and you still care for to stay it smart.
I can’t wait to read much more from you. That is actually a tremendous
website.
Heya! I know this is kind of off-topic however I
had to ask. Does building a well-established blog like yours require a lot of
work? I am brand new to operating a blog but I do write in my journal everyday.
I’d like to start a blog so I will be able to share my personal experience and thoughts online.
Please let me know if you have any suggestions or tips for brand new aspiring blog owners.
Thankyou!
Good day! This post couldn’t be written any better!
Reading this post reminds me of my good old room mate!
He always kept talking about this. I will forward this page to him.
Pretty sure he will have a good read. Thank you for sharing!
It’s awesome in favor of me to have a web site, which is useful for my knowledge.
thanks admin
I’ll right away grasp your rss feed as I can not find your email subscription hyperlink or newsletter service.
Do you’ve any? Kindly let me recognize so that I may subscribe.
Thanks.
Asking questions are really good thing if you are not understanding anything totally, but this paragraph provides
pleasant understanding yet.
Does your blog have a contact page? I’m having problems locating it but, I’d like to shoot you an e-mail.
I’ve got some recommendations for your blog you might be interested in hearing.
Either way, great website and I look forward to seeing
it grow over time.
I read this article completely about the comparison of most up-to-date and earlier technologies, it’s amazing article.
Hello there! I simply would like to offer you a huge thumbs up for your excellent information you have got here on this post.
I will be returning to your website for more soon.
Very nice post. I just stumbled upon your blog and
wished to say that I have truly enjoyed browsing your blog posts.
In any case I will be subscribing to your rss feed and I hope you write again soon!