Biodiesel Lab Report Guidelines

[ks...@cornell.edu]

Hey guys,

Last lab report! At this point, I'm assuming you are all experts at this so I'll keep these guidelines short :P

1.) Don't forget any sections, i.e. balanced equation + mechanism

2.) Show all your calculations.

3.) It would be beneficial to share data for this lab.I do take note on who shares their data and this has impact on the TA evaluation, so please share!

4.) Remember when you are constructing your discussion, you are trying to prove to me that you actually synthesized biodiesel. Discuss all of your collected data and specify which data actually helps you prove that you changed vegetable oil into biodiesel. Is their any change in appearance? Does the IR prove in its identification? How abou the TLC and viscosity test? Or maybe you believe your vegetable oil didn't change at all. If that's the case, what data do you have that suggests this? I like well thought out discussions, so please think about it! :-)

If you have any questions, please let me know!

Best,

Kyle

[Rheanna Foley]

Hey everyone,

Here is my data from the biodiesel lab:

Rf values of product: 0.05, 0.2 and 0.43

Rf values of oil: 0.09 and 0.25

Relative viscosity: 8.4

Rheanna

[Allison Grant]

Biodiesel Lab Data:

Rf values of product: .1167 .02667 and .4500

Rf values of oil: .10 and .3167

Relative viscosity: 6.25

See you all tomorrow!

Allie Grant

[Kelly Garcia]

Thank you Rheanna and Allison for sharing your data. I will continue with this chain and add my two cents.

Relative Viscosity: 9.67

Rf Values of Oil: 0.086, 0.310

Rf Values of product: 0.207, 0.448

Last lab report everyone!

[Barbara Force]

Here is my data:

Total TLC Run total: 5.7cm

Starting oil: 1.3cm/5.7cm = 0.228 rf

Biodiesel: 2.1cm/5.7cm = 0.368 rf

Relative viscocity: 10.4

I also got 1.14 g of the product in the end. I will scan my IR in a second for you guys.

[Barbara Force]

Here is my IR analysis

[Kyle O'Connor]

Thanks for sharing your data guys! Please continue to do so :-)

REMINDER: The lab notebook check will be done tomorrow in lab, so make sure your notebook is ready for me! 

[Nancy Ha]

Here is all my data: 

Rf of starting oil: 0.2 cm, 1.3 cm

Rf of product: 0.3 cm,1.2 cm, 2.3 cm

Relative Viscosity: 8.25

[Jon Hildick-Smith]

Rf of starting oil: 0.44

Rf of product: 0.4, 0.6

Relative Viscosity: 7.33

[Nancy Ha]

Oh sorry guys! I realized I forgot to divide my Rf values by the distance traveled by the solvent front. Here's the corrrect data:

Rf of starting oil: 0.05, 0.3

Rf of product: 0.07, 0.28, 0.53

[Thomas Flagiello]

Rf of starting oil: 0.320

Rf of product: 0.544

Relative Viscosity: 8.71

On Sun, Apr 21, 2013 at 8:45 PM, Jon Hildick-Smith <jsh...@cornell.edu> wrote:

--
Thomas Flagiello
Cornell University 2015
Human Biology, Health, & Society

[Thomas Flagiello]

Sorry for posting multiple times, hit the send button prematurely...

Rf of starting oil: 0.320

Rf of product: 0.544

Relative Viscosity: 8.71

[William Ingram]

Hey guys here's my data

Rf oil: 0.328

Rf product: 0.426

Relative Viscosity: 6.93

--
William Ingram

Cornell University

College of Human Ecology '15

wa...@cornell.edu   

(646)-290-1742

[Jonathan Galati]

Hey guys!

Here's my data:

Rf oil: 

    UV: .646

    p-Anisaldehyde: ..239

Rf product:

    UV: .688

    p-Anisaldehyde: .260

Relative Viscosity: 5.3 : 1; Oil:Product

- Jon Galati

[Tyler Fugere]

Here's my data:

Rf oil: .38

Rf product: .58

Relative viscosity of 8.12

I'm attaching my IR as well.  It's very close to Barbara's, and the broad peak at 3292 is actually just from some solvent, not from the product.  Also, sorry for it being 11pm on Sunday night.

Tyler Fugere

On Sun, Apr 21, 2013 at 10:38 PM, William Ingram <wa...@cornell.edu> wrote:

[Jon Hildick-Smith]

Rf biodiesel: 0.39, 0.18

Rf Oil: 0.24

I just realized i had measured totally wrong... sorry! Here are the corrected Rfs.