281 posts tagged with chemistry.
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Ferrofluid Recipe?

I have oddles of iron oxide and I am not afraid to use it... so, I would like to do so and make ferrofluid. Problem is, all instructions I have been able to find in my search thus far have provided directions in which I am obtaining my magnetic particles from an alternate source. Can any of you Mefites help me come up with a recipe for ferrofluid success?
posted by caveat empress on Jun 6, 2011 - 3 answers

Why is the best part of a homemade popsicle the melted part?

Homemade popsicle filter: why does melted popsicle taste better than frozen popsicle? [more inside]
posted by rebekah on Jun 5, 2011 - 16 answers

Wha Happen?

Calling all chemistry minded people! Wha' happen to mah soap?? [more inside]
posted by evilcupcakes on Jun 1, 2011 - 3 answers

Chemistry 101

Starting Inorganic and General Chemistry at Uni with no prior knowledge! How do i catch up with the rest come exam time? [more inside]
posted by freddymetz on May 29, 2011 - 3 answers

Does University Philippines at Diliman offer organic chemistry lab?

Does University Philippines at Diliman offer Organic Chemistry Lab? [more inside]
posted by crawltopslow on May 25, 2011 - 8 answers

He loves round-bottoms..!

My boyfriend might be failing out of graduate school. What can I do to help? [more inside]
posted by anonymous on May 13, 2011 - 14 answers

In what warm foreign country can I take Organic Chemistry for pre-med?

In what warm foreign country can I take organic chemistry for pre-med? [more inside]
posted by crawltopslow on May 1, 2011 - 12 answers

Critical constants by simulation.

I am wondering if there are generally accepted ways of getting the critical constants (acentric factor, critical pressure and temperature) of a substance from a simulation of some sort (i.e. quantum chemistry) [more inside]
posted by selenized on Apr 12, 2011 - 3 answers

I wanna come down from this cloud

Why is my lemoncello cloudy? When I combine the simple sugar and the lemon infused alcohol, both of which are very transparent (although one is a luminous yellow) the resulting mixture becomes instantly cloudy. Can anyone explain why? For bonus points can you suggest a way to minimize this? [more inside]
posted by Lame_username on Apr 7, 2011 - 25 answers

Trying to apply for a job at a local microbrewery. Tips please!

How can I make myself sound attractive to a local microbrewery given my qualifications? [more inside]
posted by pixxie on Mar 28, 2011 - 10 answers

Trying to understand why my anxiety/depression spikes

What might cause a marked spike in my anxiety/depression symptoms from 5pm-8pm (almost to the minute)? In terms of body chemistry, sleep/wake cycle, hormones, etc what does my body have going on during this time? [more inside]
posted by punkfloyd on Mar 24, 2011 - 21 answers

Regulatory/ Legal issues for selling a chemical direct to consumers?

Can one sell a chemical over the internet if its not a precursor to meth or an ingredient in explosives? What regulatory and legal issues are there? [more inside]
posted by Twinedog on Mar 14, 2011 - 12 answers

What makes lemon bars tart?

What makes lemon bars tart? [more inside]
posted by scazza on Feb 25, 2011 - 26 answers

How to plug a water leak, food-safe?

My stovetop espresso maker has a small leak. I don't think returning it will help me. Are there any recipes for food-safe 'stop leak' compounds? [more inside]
posted by anthill on Feb 8, 2011 - 10 answers

What interests the general public in Chemistry?

What would you like to read about Chemistry (and maybe science in general) from a non-scientist POV? [more inside]
posted by stevechemist on Jan 15, 2011 - 28 answers

splitting a froghair three ways-or, who is right?

Does compressed oxygen burn? Or do only objects IN compressed oxygen burn? Please settle this dinnertime discussion...The hubs and the daughter's boyfriend need to be told which one of them is right. Thanks!
posted by St. Alia of the Bunnies on Jan 5, 2011 - 19 answers

A Catalyst Isn't a Wobbly Feline

Teach me chemistry! No, not the social kind, the science-y kind. [more inside]
posted by BitterOldPunk on Jan 3, 2011 - 21 answers

How to date someone who gets in your head?

Is it detrimental to date a psychiatrist (not my own) after being in an emotionally abusive relationship? [more inside]
posted by anonymous on Dec 13, 2010 - 24 answers

How can sulphur hexaflouride both be a greenhouse gas and heavier than air?

How come sulphur hexaflouride is an extremely potent greenhouse gas when it's much heavier than air? [more inside]
posted by gkhan on Dec 12, 2010 - 6 answers

Why do some liquids form azeotropes and not others?

I know *what* an azeotrope is, but I don't really know *why* an azeotrope happens. Please enlighten me. [more inside]
posted by selenized on Nov 11, 2010 - 7 answers

How to model a heptamer from a monomer?

What is the best modelling software to construct hexa- and higher ordered structures of membrane proteins if you've got a monomer structure? [more inside]
posted by koolkat on Nov 10, 2010 - 4 answers

Carol never wore her safety goggles...

In a few weeks I'll be giving a talk to my research group about chemical safety. Please help me find stories, videos, and photos to make it interesting, awe-inspiring, and informative! [more inside]
posted by you're a kitty! on Nov 2, 2010 - 19 answers

I don't want to be a complainer

I am getting really frustrated with my flaky chemistry professor. I don't want to complain about her mistakes to the Dean because I think she's a nice person and has some life circumstances I wouldn't wish on anyone (illness of her own and single caregiver for extremely ill and challenged child). How do I get over my frustration with her, stop resenting her, and also stop feeling upset and anxious when I study? [more inside]
posted by anonymous on Oct 26, 2010 - 16 answers

A Skunk By Any Other Name

I have always found skunk odor and roses to share similar scent. In my opinion, it's strikingly similar, but almost nobody agrees with me. What chemical, if any, do they have in common? [more inside]
posted by gilrain on Sep 16, 2010 - 20 answers

H2O2 + baking soday yields?

Hydrogen peroxide + baking soda = ???? [more inside]
posted by Kevin S on Sep 8, 2010 - 22 answers

Breaking nerdy

I'm looking for the chemistry version of A Brief History of Time. Does it exist? [more inside]
posted by hiteleven on Sep 6, 2010 - 9 answers

Help me understand hair care chemistry

Help me understand hair care chemistry. When I look at the list of ingredients on bottles of conditioner, what ingredients should I avoid. I can't stand the 'waxy' feeling I get from some conditioners. My old favorite standby conditioner changed formulas recently and it now has the dreaded waxy ickiness. NOT looking for specific product recommendations, only for ingredients to avoid or possibly ingredients to look for. [more inside]
posted by marsha56 on Aug 17, 2010 - 16 answers

DFT for inorganic chemists

Do you know of resources for understanding Density Functional Theory for Inorganic Chemists? [more inside]
posted by u2604ab on Aug 5, 2010 - 5 answers

My Chemical Romance

I'm trying to find coffee mugs that have individual elements on their sides for a birthday gift, but have not been able to find them. Can you help? [more inside]
posted by Dr.James.Orin.Incandenza on Aug 5, 2010 - 5 answers

help me w/thse chemistry instructions

Quick chemistry question - do i need to dilute this or is it already diluted [more inside]
posted by Salvatorparadise on Jul 25, 2010 - 12 answers

Nonoxyl-what

I can't get the phrase "Nonoxyl-1,5-Triethylamine" out of my head. Obviously, it is an IUPAC name for an organic chemical, but AP Chemistry was a long time ago and I can't quite map out if it's valid— my hunch is "no." Is there a notable chemical that has a similar name that I might be half-remembering? More importantly, is there a website where I can look things like this up in the future?
posted by Electrius on Jul 20, 2010 - 9 answers

Skim milk + 2% = 1% ?

If you were to combine 1 cup of skim milk and 1 cup of 2% milk, does that essentially give you two cups of 1% milk? [more inside]
posted by ascetic on Jul 14, 2010 - 17 answers

need some nerdy chemist/engineer humor

I'm giving a presentation next month need a funny joke about the difference between chemists/scientists and engineers (because I'm an engineer doing chemistry) [more inside]
posted by beammeup4 on Jul 9, 2010 - 22 answers

How would the Horta actually work?

"Silicon based life" is a perennial sci-fi trope - I guess because silicon and carbon share similar-ish valency properties. Has anyone actually tried to flesh out what a silicon chemistry complex enough to support protein analogues would look like? Or more broadly, has anyone proposed schemata for complex, self-replicating chemistries that differ substantially from those we know?
posted by nicolas léonard sadi carnot on Jun 21, 2010 - 16 answers

Relative bond energies of common organic bonds

Looking for a chart or table that broadly summarizes/compares the relative bond energies of the most common intramolecular bonds found in organic molecules (think single and double bonds among C, H, O, N, and maybe S too). [more inside]
posted by killdevil on May 25, 2010 - 2 answers

Best Chemistry Review Book

What's the best review/refresher book for high-school level chemistry? [more inside]
posted by cosmic.osmo on May 19, 2010 - 3 answers

I need a chemist

Na2CO3·1.5H2O2 + NaClO + H2O --> ??? Or, what actually happens when you mix bleach and oxyclean? [more inside]
posted by sentient on May 12, 2010 - 4 answers

Mystery molecule!

What's this molecule? An antibiotic of some kind, I think? I've tried Google'ing based on its IUPAC name, no luck.
posted by nicolas léonard sadi carnot on May 7, 2010 - 2 answers

Making icecubes.

Should I use warm or cool water when I fill an ice cube tray to freeze? [more inside]
posted by Kilovolt on May 4, 2010 - 22 answers

He's raring to go

What's the best software for prepping for college-level hard sciences? [more inside]
posted by anniecat on Apr 28, 2010 - 3 answers

One-Trick Pony needs her trick back

There's a hair product my friends and I love that's been discontinued. Do you know of any companies or chemists that can duplicate it using the ingredients list on the back of the container for a reasonable price? Is there a minimum volume? Can I sell the extra on Ebay? Is this possible or just a pipe dream?
posted by TorontoSandy on Apr 19, 2010 - 11 answers

Organic Chem question: stereochemisty in this Taxol tail synthesis step.

Please explain the stereochemistry of this reaction. [more inside]
posted by jbreyfogle on Apr 13, 2010 - 9 answers

Would a drug-manufacturing machine be legal?

Would a drug-manufacturing machine be legal? [more inside]
posted by unmake on Apr 5, 2010 - 20 answers

Immaculate

Why does stainless steel have such strange properties? [more inside]
posted by Skeptic on Mar 27, 2010 - 9 answers

meth101

what's the difference between speed and ice?
posted by moorooka on Mar 19, 2010 - 10 answers

When to Give it a Second Chance?

How long does it take you to know you want to "date" a first date from online? Is there more i can be doing to give chemistry a try? [more inside]
posted by bearette on Feb 27, 2010 - 20 answers

I'm melting

I am looking for a torch to melt pyrex (borosilicate glass). [more inside]
posted by sciencegeek on Feb 25, 2010 - 11 answers

Help me show that science can be cool...

What kinds of simple, safe chemical reactions can I do to really wow a group of 6th graders? [more inside]
posted by kro on Feb 22, 2010 - 33 answers

KABOOM!

BookFilter: I'm looking for a book for my (26-year-old) brother on what I'd call "kitchen chemistry"; i.e. cool experiments that you can do at home just for the sake of making something awesome happen. [more inside]
posted by teraspawn on Feb 17, 2010 - 6 answers

A degree in joblessness...?

I went from loving my degree to completely meh about it...what now? [more inside]
posted by Hakaisha on Feb 3, 2010 - 14 answers

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