fluorine

perfect recipe for mothers day:

  • Water: 35 l.
  • Carbon: 20 kg. 
  • Ammonia: 4 l. 
  • Lime: 1.5 kg. 
  • Phosphorus: 800 g. 
  • Salt: 250 g. 
  • Saltpeter: 100 g. 
  • Sulfur: 80 g. 
  • Fluorine 7.5 g. 
  • Iron 5 g. 
  • Silicon 3 g. 
  • trace amounts of 15 other elements.
Top things heard in Chemistry class

“Bitch please, you bond more readily than fluorine”
“I think you’ll find I sexually identify as the periodic table”
“Did you just assume my oxidation state?!”
“Honey if you were any more unreactive you’d be a noble gas”
“Wow, fluorine really is a slut”
“So dative covalent bonding is basically atomic double penetration right?”
“Yo, imagine a bath bomb made of pure caesium”
“What’s a commercial use of sodium chloride?” “It’s literally salt, you can- you know what, never mind, you’re white”
“I think you’ll find my enthalpy change is infinite”
“Guys what’s the Avocado constant again?”
“You know that acid is highly corrosive, you probably shouldn’t sit there with it pretty much in your lap”
“You know, our friendship is stronger than a hydrogen-fluorine covalent bond”
“I would literally pay you to set me on fire and calculate my enthalpy of combustion”
“Forget Hess cycles, you’re a fucking mess cycle”

4

Working with gaseous could be really different compared to other “classical’ methods. 

In this case I made a reaction with a perfluoroalkyl-iodide what is gaseous at room temperature, however it dissolved readily in the reaction mixture. I flushed the balloon on the Schlenk flask a few times with argon, removing air and anything else, what could cause problems (first two gifs) and dissolved the fluorous reagent in the reaction mixture causing a slight yellow discoloration. The dissolved amount was measured from the weight gain of the flask. 

As time goes on, the transparent reaction mixture turned foggy (third gif) and after a little time my product separated from the reaction mixture (last pics) as an oily upper layer. 

Space pick up lines 😙🌌

Are you the winds on Neptune? Because you take my breath away.

I sent all your selfies to nasa, because you’re a star

Are we on Jupiter? Because your hand is heavier than normal, here let me hold it for you

Are you made of fluorine iodine and neon? Because you are F I Ne

Even in 0 g, I’d fall for you

Are you a carbon sample? Because I want to date you

You deserve a ring the size of Saturn’s

You’re hotter than Venus ;)

Are you mercury? Because you’ll always be first to me

Let’s get astrophysical

jacelghtwoods  asked:

Can i request an AU prompt #3 for peter parker? (For every question they get right during studying they have to take off a piece of clothing) i love your writing! ❤️

Awe, thank you, my love! I hope you enjoy! x

Sunlight streamed through the curtains of Peter’s room, your legs crossed in front of you as you sat in a comfortable silence while you and Pete study for the chemistry test on Monday. 

You were three questions down on the study guide your teacher provided you when you had officially categorized the few minutes you had researched the material as boring. Slowly, you looked away from your paper, and looked down at Peter who was laying on his stomach, examining his notes with careful eyes while he bit his lips softly. 

You resisted the urge to groan, instead thinking of something to do other than studying for the moment. 

“Pete,” Your voice ripped through the air, causing Peter to whip his head up in your direction with a questioning expression. “I’m bored.” 

With a small smile and a shake of his head, he sat straight on the bed, mimicking your position as he prepared himself to continue studying. “Y/N, we need to ace this test. It’s half of our grade, you know that.” 

“Yeah, but Pete, you’re smart. It’s different for me, I’m not a genius who can remember anything the teacher tells me right away, you can.” You didn’t mean to sound like a whiner, but you couldn’t help it. You whined a lot when it came to school, but luckily you had Peter to help you with your grades. 

Peter looked down at his study guide, contemplating on skipping it and doing something else instead. However, Peter was against it. “We need to study, Y/N.” 

Slowly, you bit your bottom lip, looking down at your lap. You knew how important this grade was, it was just stressful. You currently had a lot going on at home, knowingly to Peter, and you just couldn’t completely focus on the material for Monday. It was almost impossible, but luckily you knew most of the material. 

“You’re smart, Y/N. Don’t doubt that. I don’t know, maybe you need to study it in a different way?” Peter thought aloud, resisting the urge to kiss you when he watched you bite your lip. Suddenly, a broad smirk painted itself upon your lips, and Peter gulped at the sight. 

“I know a way we can study.” You grinned, bouncing up and down on his bed, confusing Peter to the fullest. 

“O-Okay. W-What are you thinking?” He stuttered, listening to you chuckle.

You bit your lip again, your face burning at the thought that was currently in the front of your mind. “Let’s play a game.” 

Peter’s eyebrows furrowed in confusion, his mouth turning into a frown. “Okay… spill.” 

“Well, for one, we ask each other questions on the study guide-” 

“Obviously.” He said sarcastically, a teasing smile on his lips. He laughed when you jumped towards him, wrapping your arms around his neck and tackling him to the bed. 

“Wait, wait, wait, but there’s a twist!” 

Peter rose his brow in question, waiting for you to continue. 

“For every question that we get right, we have to take off one piece of clothing.” You cackled when you saw his eyes widen, his jaw almost dropping to the floor. 

“U-Uh…” he trailed off, sitting up and running a hand through his hair. Unwanted nerves coursed through his veins, and suddenly his face was turning a dark shade of red due to his shy personality. 

“Oh, come on, Pete! It’s not like you haven’t seen me in less clothing than I’m already in right now! We’ve been dating for six months, this shouldn’t be too bad. Although, if you don’t feel comfortable with this, that’s perfectly fi-” 

“N-No!” Peter cut you off with a yelp, his voice cracking. He cleared his throat once before continuing. “Let’s do it.” 

You cheered when you heard Peter agree, and reached over to grab your guide, looking back at Peter. “You okay with going first?” when Peter nodded, you looked back down at the paper, reading the first question over. “Okay, Peter, this one is an easy one. The nucleus of an atom consists of what?” 

Immediately, Peter answered the question correctly. “Protons and neutrons.” 

A smirk lined your lips, and you motioned to his clothes. “First item of clothing.” 

Peter gulped, reaching down to the hem of his - ironically - chemistry joke t-shirt and pulling it off his head, revealing his toned chest and abs. You imemdiately felt your cheeks heat up, and watched as Peter looked at you knowlingly. 

“Stop it.” He bit, a small smile making its way onto his face. 

Your grinned, a loud laugh echoing from your mouth. “I don’t know what you’re talking about.” 

Peter teasingly rolled his eyes, snatching the paper from your hands and reading a question. “The most electronegative element among the following is what: Sodium, bromine, fluorine or oxygen?” 

You sat there in thought for a moment before yelling out your answer. “FLUORINE!” 

Peter laughed at your excitement over getting it correct, but motioned down to your clothes. “Your turn to strip, Y/N.” 

Peter gulped when you smirked for the thousandth time, a grin growing on your lips. “Peter, you naughty boy!” You teased, causing Peter to groan. 

“You’re the one who suggested this, I’m going along with my girl!” Peter watched as you smiled at him adoringly, climbing off the bed and slipping off the skirt you had been wearing. “Wait, that’s not fair!” Peter yelled when he small pair of shorts you had hidden under the skirt, a jovial giggle blowing past your lips. 

“Oh, come on, Pete! Did you actually think I’d ever wear a skirt without having short on underneath? You know I never do that.” 

Peter glared at you, a frown casted upon his lips. “My top half is bare, you could at least make it a little more fair.” 

You smiled, shrugging and sitting back on the bed. “Fine, but only because it’s for you.” Pride filled your chest when you saw Peter’s cheeks turn a dark shade of red. “Ask me another question.” 

Peter looked down at the paper, reading another question. “True or False: The metal used to recover copper from a solution of copper sulphate is Na.” 

He eyed you carefully as you thought over the answer, repeating it in your head. It took you a few seconds to answer, your eyes planted onto Peter’s, but you successfully answered it correctly. 

“False. It’s Fe.” 

Peter smiled triumphantly, nodding his head. “That’s my girl. Go ahead.” 

You immediately smiled sweetly at him, reaching down to the hem of your shirt and pulling it over your head, revealing your sports bra to Peter. You realized after a few seconds that Peter was now speechless, and grinned, snatching the paper from his hands. Startling him, he jumped back from you, causing you to laugh. 

“Now I get to ask you two questions, Pete.” You said innocently, smiling down at your paper sweetly. 

“Great. Let’s get this going.” He urged you, causing you to raise a brow. 

“Someone’s excited, huh?” You teased, laughing when Peter yelled at you. 

“Shut up!” 

mj-the-scientist  asked:

Character: the element lithium, magically transformed into a 16 year old girl. Object: a spoon. Location: crowded college campus.

“Who will take my valence electron?!” Lithium called out, waving one little spoon around her. I need to get this thing off of my hands, she thought to herself as she scoured the crowded college campus for someone with seven spoons. “Valence electron, up for grabs!” she shouted again, desperate to give away her electron. She turned around a corner, searching for more people to give her electron to-But suddenly she was taken by surprise as she collided with someone else!

"Oh my, I’m so sorry! Here, let me help you up." a girl quickly apologized as she held out her hand for Lithium to take.

"Thank you! What’s your name?” Lithium said to her. Could she be it? The one with seven valence electrons?

“Fluorine.” she said with a friendly smile. This was it! Lithium thought.

“Fluorine? You have seven valence electrons!!!” She said and held out her little valence electron spoon. Fluorine nodded happily in agreement and held out seven more. It was absolutely perfect. Lithium gave away the electron she was meaning to lose and Fluorine gained one more electron to add to her collection. The two of them were complete: full octets. Full valence electron shells! They embraced in a hug and in that moment, I swore they were LiF.

Physical requirements for my girlfriend:

Water (35 L), Carbon (20 kg), Ammonia (4 L), Lime (1.5 kg), Phosphorous (800 g), Salt (250 g), Saltpeter (100 g), Sulfur (80 g), Fluorine (7.5 g), Iron (5 g), Silicon (3 g) and traces of fifteen other elements.

But I hear girls like that cost an arm and a leg.

3

Doing reactions at -78.5 °C using Dry Ice. 

Dry ice is the solid form of carbon dioxide that sublimates at −78.5 °C (−109.3 °F) at atmospheric pressure. This extreme cold makes the solid dangerous to handle without protection due to burns caused by freezing (frostbite).

If a fast or quite exothermic reaction is being performed, the really low temperature often helps a lot. It prevents runaway of the reaction and keeps chemistry in the flask. In my case a fluorinated compound was reduced with a complex metal hydride. At room temperature the reduction happens and gives a side product, if it’s cooled with ice or salt-ice bath a maximum 40% yield could be achieved, but if it’s being performed a -78 °C up to 90% product could be isolated on a 200 g scale. 

abhimittal  asked:

Can u explain me the peaks in mass spectrum?

Thank you for the awesome question!

Mass Spectrum Peaks 101

What exactly are they?

D: Mass Spectrometry is an analytic technique that utilizes the degree of deflection of charged particles by a magnetic field to find the relative masses of molecular ions and fragments. [x]

So what does that mean?

Each peak in the mass spectrum represents fragments that “break” off into ions when a compound is charged. There are key peaks to look out for in a mass spectrum that’ll help you determine the molecular weight of a compound and its substituents.

Base Peak: the peak that has the highest intensity (100%) and is most abundant ion in the compound.
Molecular Ion Peak (M): most likely the peak that indicates the weight of the compound.

Important Information -

Halogens: in some cases, you’ll see peaks at M+1, M+2, etc… These peaks will help you determine the ratio and amount of halogens that are present. For iodine, a “larger than normal” peak will be present at 127 m/z. Though, watch out for fluorine because it goes unnoticed in a mass spectrum. Instead, you’ll have a molecular ion peak of -18 (ish) weight due to the fluorine being replaced with a carbocation. 

Nitrogen: it’s simple to guess if there’s a nitrogen or not. The molecular ion peak will have an odd value. 

Trends: after looking at hundreds of mass spectrums, you’ll start to notice similar peaks.

Tips -

  • I first look at the parent peak and molecular ion peak and subtract their difference. If you get a value of 15 m/z then you definitely have a methyl group in the compound. If you get 18 m/z then you have some type of alcohol group that left as water. 
  • Label each fragment peak as a guess to what it could be. You won’t exactly get the whole compound from just looking at an MS, but it gives you a good start!
  • Watch out for those halogens!!!

Practice Problems - [x] [x] [x] [x] [x]

Hope this helps! xx

A small cylinder of hydrogen fluoride with 340 g or 360 liter of HF in it. More than enough to kill someone. 

Hydrogen fluoride is a colorless gas what can be liquefied quite easily, with a little ice and water, since its boiling point is 19.5 °C. The gas or its solution in water (hydrofluoric acid) attacks glass, so it could be only stored in steel or plastic. The reaction with silicates (glass) produces silicon tetrafluoride what is a low boiling point ( 4 °C), highly reactive compound and hexafluorosilicic acid.

SiO2 + 4 HF → SiF4(g) + 2 H2O
SiO2 + 6 HF → H2SiF6 + 2 H2O

Hydrogen fluoride is the only hydrohalic acid that is not considered a strong acid, i.e. it does not fully ionize in dilute aqueous solutions. When the concentration of HF approaches 100% (like in the gas cylinder on the picture), the acidity increases dramatically because of homoassociation: 3 HF is in equilibrium with H2F+ +  FHF−

Once absorbed into blood through the skin, it reacts with blood calcium and may cause cardiac arrest. In the body, hydrofluoric acid reacts with the ubiquitous biologically important ions Ca2+ and Mg2+. Hydrofluoric acid exposure is often treated with calcium gluconate, a source of Ca2+ that sequesters the fluoride ions. So if anyone works with this, always have a lot calcium gluconate solution somewhere close.