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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Partha Sarker on July 19, 2014, 03:16:29 AM

Title: How we can identify alkenes and alkynes?
Post by: Partha Sarker on July 19, 2014, 03:16:29 AM

There is Bromine Solution reaction for identifying unsaturated hydrocarbons... But how we can identify alkenes and alkynes from unsaturated hydrocarbons..???

Title: Re: How we can identify alkenes and alkynes?
Post by: Borek on July 21, 2014, 03:58:58 PM

What are "unsaturated hydrocarbons"?

Title: Re: How we can identify alkenes and alkynes?
Post by: Hunter2 on July 23, 2014, 02:04:31 PM

CH₂=CH₂, HC=CH as example

They are not saturated.

@Partha Sarker with the bromine reaction you cannot destinguish what has double bond or triplebond.

Need other reaction or spectrometric research.

Title: Re: How we can identify alkenes and alkynes?
Post by: Partha Sarker on July 24, 2014, 02:33:18 AM

Quote from: Hunter2 on July 23, 2014, 02:04:31 PM

CH₂=CH₂, HC=CH as example

They are not saturated.

@Partha Sarker with the bromine reaction you cannot destinguish what has double bond or triplebond.

Need other reaction or spectrometric research.

I wan't to know that particular reaction...would you help me please???

Title: Re: How we can identify alkenes and alkynes?
Post by: Hunter2 on July 24, 2014, 08:52:58 PM

Check what happens with alkenes by treating with Ozone, Permanganate or Osmiumtetroxide.

Alkenyne refer here: http://onlinelibrary.wiley.com/book/10.1002/9780470771563

Title: Re: How we can identify alkenes and alkynes?
Post by: Partha Sarker on July 26, 2014, 02:47:28 AM

Thanks. I will check it now...

Title: Re: How we can identify alkenes and alkynes?
Post by: Partha Sarker on August 01, 2014, 06:44:53 AM

Quote from: Hunter2 on July 24, 2014, 08:52:58 PM

Check what happens with alkenes by treating with Ozone, Permanganate or Osmiumtetroxide.

Alkenyne refer here: http://onlinelibrary.wiley.com/book/10.1002/9780470771563

hey it needs an registration... Is there any other link where I don't have to register myself...??? >:D

Title: Re: How we can identify alkenes and alkynes?
Post by: Arkcon on August 01, 2014, 12:55:27 PM

Perhaps someone at your university, or other institution will be able to access it for you.  Or, you could ask a library to get it for you.

Title: Re: How we can identify alkenes and alkynes?
Post by: Partha Sarker on August 03, 2014, 12:03:59 AM

Quote from: Arkcon on August 01, 2014, 12:55:27 PM

Perhaps someone at your university, or other institution will be able to access it for you.  Or, you could ask a library to get it for you.

I am only a high schooler & I live in Bangladesh..

Title: Re: How we can identify alkenes and alkynes?
Post by: Arkcon on August 03, 2014, 06:44:07 AM

I've worked with Bangladeshi, Pakistani and Gazan scientists.  There are universities, and they're glad to help the next generation of scientists.  Ask your teacher to speak to someone on your behalf.