Before the 2018-19 school year, buy a copy of the lab book Chemistry on a Budget. It’s a great resource for your class!
There are two versions of each lab, one with a ten-question conclusion and one with directions for a full lab report. This way the teacher has the option! Each lab is two pages to allow for one two-sided handout.
A 5-Star Customer Review of Chemistry on a Budget at amazon.com states:
“[S]traight forward, to the point, using household chemicals…this is the lab book for you.
I teach high school chemistry and this is exactly what [I] was looking for. Labs included simple household chemicals that could be easily found. Nice format, easy to follow along procedures, and touches on every topic of our chemistry curriculum.”
You can buy this lab book for $23 at amazon.com or lulu.com. It will take 1-2 weeks to get to you -- Order Now. It’s a great resource!
*Some of you have already purchased my lab book – be sure to check out Page 141 !
“When the Deepwater Horizon drilling pipe blew out [on 20 April 2010,] … beginning the worst oil spill in U.S. history, those in charge of the recovery discovered a new wrinkle: the millions of gallons of oil bubbling from the sea floor weren’t all collecting on the surface where it could be skimmed or burned. Some of it was forming a plume and drifting through the ocean under the surface. …
[S]cientists at the U.S. Department of Energy’s (DOE) Argonne National Laboratory have invented a new foam, called Oleo Sponge, that addresses this problem. The material not only easily absorbs oil from water, but is also reusable and can pull dispersed oil from the entire water column—not just the surface.”
“A new material can absorb up to 90 times its own weight in spilled oil and then be squeezed out like a sponge and reused, raising hopes for easier clean-up of oil spill sites.
This contrasts with most commercial products for soaking up oil, called 'sorbents'. These are generally only good for a single use, acting like a paper towel used to mop up a kitchen mess and then tossed away. The discarded sorbents and oil are then normally incinerated.
But what if the oil could be recovered and the sorbent reused? The new material, created by Seth Darling and his colleagues at Argonne National Laboratory in Illinois, seems to allow for both of these processes, cutting waste.”
“The Oleo Sponge is made of a polyurethane foam whose interior surfaces are covered with oleophilic molecules that draw oil out of water. The challenge, according to Argonne, was finding a way to 'glue' those oil-loving molecules to the sponge’s interior. That issue was tackled with the help of 2011 research from Argonne scientists, who were able to infuse metal oxide with nanostructures. The Oleo creators used that technique to develop a primer for the interior of the sponge that the oleophilic molecules stick to. The result is a sponge that can adsorb up to 90 times its weight in oil.
After use, the sponge can be wrung out and the oil can even be reclaimed in some cases. Argonne says it’s actively looking to commercialize the material through licensing or collaboration agreements, and the sponge could be ready for real-world use in less than five years…
The sponge was tested extensively in a New Jersey saltwater research tank, where it was able to collect both diesel and crude oil from the tank, whether the oil was above or below the water’s surface.
Seth Darling, the sponge’s co-inventor and a scientist with Argonne’s Center for Nanoscale Materials, said in a press release that 'The material is extremely sturdy. We’ve run dozens to hundreds of tests, wringing it out each time, and we have yet to see it break down at all.' "
In case you are not familiar with the term oleophilic, it is defined as “of or relation to a substance that has an affinity for oils and not for water.”
Your students may be familiar with the terms hydrophilic which is a substance that dissolves in water (typically ionic or polar), and hydrophobic, which is a substance that will not dissolve in water (typically nonpolar).
" ‘What’s special about our technology is that we can extract the oil, either from the surface or from the water column, without creating any waste,’ explained Seth B. Darling, the director of the Institute for Molecular Engineering at Argonne National Laboratory and the project lead on Oleo Sponge… ‘We soak up the oil, and then the oil can be recovered, which is also added value because that can now be used—it was extracted from the Earth for a reason—and you can reuse the sponge. That allows you to address a much larger spill incident with a small amount of the absorbent’ …
[T]he U.S. Coast Guard put out a call for proposals for better ways to clean up oil spills. Darling and his team submitted a white paper about SIS and were asked to make a full proposal. Shortly after, they were funded to investigate the potential of SIS, and what eventually became Oleo Sponge, for the removal of oil.
‘This is a really nice example of basic science happening in a government lab, and then becoming—by working with other parts of the government—something that is really a technology,’ said Darling. ‘Often our government tends to be relatively siloed, and this was a really nice example of integration between the Department of Energy, Homeland Security, which owns the Coast Guard, and eventually the Department of the Interior. We had the science and technology here in the DOE and it was a challenge in the real world that was faced by Homeland and the DOI.’ ”
This situation refers to a nonpolar substance (oil) dispersed with a polar substance (water).
Here is a brief 11-minute video from Crash Course in Chemistry #23 providing an overview of the basics of Polar and Nonpolar Substances:
Other related blog posts include:
03/12/2014 Polarity and Intermolecular Forces
03/16/2014 Dipole-dipole forces, etc.
03/19/2014 Properties of Solutions
01/26/2018 Current Event -- Oil Drill Site Explosion
Before the 2018/2019 school year. buy a copy of the lab book Chemistry on a Budget – it is a great resource! You can examine the labs and decide what you want to use during the school year.
*This Blog contains several entries that would be helpful to your chemistry classroom. Check out the Topic List to help you to find past Blog entries.
Also, Write To Me about your successes, challenges, or questions in the Chemistry Classroom.
Have a great weekend!