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    The Skeptical Chemist
    @theskepticalchemist

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Looking up from the bottom of a solution. See, life as a lab bench isn't all that terrible! #whatthelabbenchsees
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#perspective #deepblue #pretty #science #scienceisawesome #research #sciart #chemistry #physics #biology #TheSkepticalChemist
The winners of our Instagram giveaway have been announced! Big congratulations to the 3 lucky winners, they've each won themselves a pair of TSC Rex pins! To those who entered, don't forget to check your inbox!
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In case you missed out on the raffle, you can visit our store page to pick one up, or three, or ten...
www.theskepticalchemist.com/store
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#TSCgiveaway #dino #dinosaur #trex #scientist #enamelpin #science #labcoat #lablife #phdlife #worklife #chemistry #biology #physics #TheSkepticalStore #TheSkepticalChemist
The winners of our Instagram giveaway have been announced! Big congratulations to the 3 lucky winners, they've each won themselves a pair of TSC Rex pins! To those who entered, don't forget to check your inbox! ... In case you missed out on the raffle, you can visit our store page to pick one up, or three, or ten... www.theskepticalchemist.com/store ... #TSCgiveaway  #dino  #dinosaur  #trex  #scientist  #enamelpin  #science  #labcoat  #lablife  #phdlife  #worklife  #chemistry  #biology  #physics  #TheSkepticalStore  #TheSkepticalChemist 
Happy Carl Sagan Day 2018! The man would've been 84 this year; let's take some time to remember just how great his Cosmos series was (and still is!) We've paid tribute to a great science communicator with a post about him, and his legacy - check out the article up on our website! (Link in bio)

#carlsagan #carlsaganday #scicomm #cosmos #astronomy #astrophysics #space #spacetravel #science #research #sciencerocks #TheSkepticalChemist
Potassium cyanide - this bottle contains enough to kill around 1000 people. But the 'cyanide' that many of is would have heard/read about is actually hydrogen cyanide (HCN), a gas at room temperature.

Cyanide binds to hemoglobin once it enters the bloodstream, although it doesn't work in the same way carbon monoxide does (by displacing oxygen completely). Instead, cyanide travels throughout the body and inhibits cellular respiration by blocking the final step of the electron transport chain, preventing the reduction of O2 to H2O. Stopping this step means the membrane potential required to generate ATP (in the mitochondria of cells) is never reached.

Since ATP is essential for normal cellular processes, depriving cells of it is no good as it means we literally lose all function in the body (including the nerves and heart). Furthermore, cells are forced into anaerobic respiration, leading to a buildup of lactic acid and ensuring a painful few minutes of acidosis before death... Hope you learnt something new today! 
#longread #funfacts #happysunday #cyanide #HCN #medicine #poison #science #sciencerocks #anatomy #chemistry #quimica #biochemistry #biology #physics #TheSkepticalChemist
Potassium cyanide - this bottle contains enough to kill around 1000 people. But the 'cyanide' that many of is would have heard/read about is actually hydrogen cyanide (HCN), a gas at room temperature. Cyanide binds to hemoglobin once it enters the bloodstream, although it doesn't work in the same way carbon monoxide does (by displacing oxygen completely). Instead, cyanide travels throughout the body and inhibits cellular respiration by blocking the final step of the electron transport chain, preventing the reduction of O2 to H2O. Stopping this step means the membrane potential required to generate ATP (in the mitochondria of cells) is never reached. Since ATP is essential for normal cellular processes, depriving cells of it is no good as it means we literally lose all function in the body (including the nerves and heart). Furthermore, cells are forced into anaerobic respiration, leading to a buildup of lactic acid and ensuring a painful few minutes of acidosis before death... Hope you learnt something new today! #longread  #funfacts  #happysunday  #cyanide  #HCN  #medicine  #poison  #science  #sciencerocks  #anatomy  #chemistry  #quimica  #biochemistry  #biology  #physics  #TheSkepticalChemist 
Methyl orange indicator showing off - as some sodium hydroxide pellets turn a boric acid solution alkaline! You can watch the full video on our YouTube channel! (Yes, we do have one of those too)
... and Happy Halloween!
#chemistryisfun #colors #acidbase #reaction #timelapse #science #stem #research #chemistry #biology #physics #TheSkepticalChemist
Hey everyone, we've been working hard to implement some brand new features on our website - including a brand new storefront (go check it out!) As a little thank you for your continuous support, we're giving away THREE sets of 2 TSC pins, one for you and one to share. Because sharing is caring, right?

Here's how to enter the draw:
1. Follow us
2. Drop a comment on what you think about our new enamel pins!
3. Giveaway ends on 4th November (12am SGT). Open to everyone, international shipping included

Feel free to tag your friends in the comments too, good luck!

#giveaway #cutestuff #dino #trex #enamelpins #labcoat #lablife #labfashion #science #sciart #sciencerocks #research #chemistry #quimica #biology #physics #TSCRex #TheSkepticalStore #TheSkepticalChemist
Hey everyone, we've been working hard to implement some brand new features on our website - including a brand new storefront (go check it out!) As a little thank you for your continuous support, we're giving away THREE sets of 2 TSC pins, one for you and one to share. Because sharing is caring, right? Here's how to enter the draw: 1. Follow us 2. Drop a comment on what you think about our new enamel pins! 3. Giveaway ends on 4th November (12am SGT). Open to everyone, international shipping included Feel free to tag your friends in the comments too, good luck! #giveaway  #cutestuff  #dino  #trex  #enamelpins  #labcoat  #lablife  #labfashion  #science  #sciart  #sciencerocks  #research  #chemistry  #quimica  #biology  #physics  #TSCRex  #TheSkepticalStore  #TheSkepticalChemist 
Who else uses reaction vials? No more fiddling about with leaky seals and septa. Take your reactions around with you worry-free. Show them off at tea time! (jks don't)
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#safetyfirst #phaseseparation #orgo #iodination #aromatics #synthesis #chemistry #quimica #biology #physics #TheSkepticalChemist
Snow in a measuring cylinder - guess the chemical? Hint: it's in our last video post!
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#whoneedssnowglobes #snow #fluffy #christmascameearly #chemicalsnow #chemistryisfun #scienceart #chemistry #quimica #scienceisawesome #TheSkepticalChemist
HI! Oh hello there, but I meant HI as in hydriodic acid - one of the strongest known, concentrated samples like these have a negative pH! I'm using it here to convert isopropanol to isopropyl iodide (replacing the -OH with an -I); C-I bonds are generally more fun to work with.
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HI is usually stored in sealed ampoules because it reacts really quickly with atmospheric oxygen - the brown liquid in my syringe was originally clear/light yellow - forming molecular iodine (I2).
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#iodine #halogen #acids #organicsynthesis #chemicalreaction #chemistry #biology #physics #science #research #looseygooseygloves #TheSkepticalChemist
HI! Oh hello there, but I meant HI as in hydriodic acid - one of the strongest known, concentrated samples like these have a negative pH! I'm using it here to convert isopropanol to isopropyl iodide (replacing the -OH with an -I); C-I bonds are generally more fun to work with. ... HI is usually stored in sealed ampoules because it reacts really quickly with atmospheric oxygen - the brown liquid in my syringe was originally clear/light yellow - forming molecular iodine (I2). ... #iodine  #halogen  #acids  #organicsynthesis  #chemicalreaction  #chemistry  #biology  #physics  #science  #research  #looseygooseygloves  #TheSkepticalChemist 
How do scientists solve a crime? Learn about how science has changed the way criminal investigations are carried out - in our introduction to forensic science!
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🕵️‍♀️ Link in bio 🕵️‍♂️
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#forensicscience #csi #lawandorder #crimescene #criminalminds #detectivework #chemistry #chromatography #biochemistry #dnafingerprinting #TheSkepticalChemist
Sieving some silica that decided to clump up - silica (SiO2) is actually the most abundant material on earth! Aerosolized or 'fumed' silica is super light/fluffy and has many uses; its high surface area combined with silanol (Si-OH) groups present make it extremely hydrophobic and reactive.
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#moonrocks #silica #learnchemistry #chemistryisfun #sciencerocks #scienceeducation #fridayfunday #chemistry #biology #physics #TheSkepticalChemist
Fossilized skulls featuring parasaurolophus - one of my personal favorite dinos. Look at those tiny teeth! What's your favorite dinosaur?
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#dino #dinosaur #fossils #bones #museum #oldbones #parasaurolophus #jurassicworld #paleontology #science #research #TheSkepticalChemist
Check out these amazing colors in our latest article explaining the chemistry behind Benedict's reagent - including a step by step demonstration you can follow at home!
... Link in bio ...
#colorfulchemistry #sugarart #reducingsugar #chemistry #DIYchem #science #homelab #biochemistry #biology #physics #research #TheSkepticalChemist
16x time lapsed precipitation of an ammonium salt, with a little help from an ice bath! As we know, stuff tends to dissolve better in hot water. Conversely, things don't really like dissolving in cold water (as there is lesser energy available to break them apart). We can take advantage of this to force our solid out of a saturated solution, providing a quick - albeit crude -technique of purification.
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#crystals #precipitation #chemistry #chemistryfun #chemistrylab #chemistrylife #science #research #biology #physics #TheSkepticalChemist
16x time lapsed precipitation of an ammonium salt, with a little help from an ice bath! As we know, stuff tends to dissolve better in hot water. Conversely, things don't really like dissolving in cold water (as there is lesser energy available to break them apart). We can take advantage of this to force our solid out of a saturated solution, providing a quick - albeit crude -technique of purification. ... #crystals  #precipitation  #chemistry  #chemistryfun  #chemistrylab  #chemistrylife  #science  #research  #biology  #physics  #TheSkepticalChemist 
Methyl orange is an indicator that shows up as red in acidic solution, but turns a bright yellow in base. Actually the pH at which the actual  transition occurs is around 4. Also its color change is sharp and vivid, so it works really well in titrations!
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#chemfactoftheday #scienceisawesome #methylorange #indicator #chemistry #biology #physics #titration #chemlab #research #TheSkepticalChemist
Not exactly my finest hour 🤷🏻‍♂️
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#timeforawalk #failoftheday #conicalflaskinabeaker #chemistryisfun #chemistryjokes #jokesonme #sciencingsohard #TheSkepticalChemist ...
Am I missing any hashtags here?
Pfizer is set to lose out on market exclusivity for Viagra (sildenafil citrate) come 2020, signaling the end of an era. We take a look back at the iconic drug that generated tens of billions of dollars in revenue over 20 years; what's in store for the little blue pill that never really harbored blockbuster dreams?
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Link to article in bio, as always!
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#viagra #sildenafil #FDA #drugs #medicine #science #research #drugdevelopment #chemistry #quimica #biochemistry #physics #biology  #TheSkepticalChemist
Pfizer is set to lose out on market exclusivity for Viagra (sildenafil citrate) come 2020, signaling the end of an era. We take a look back at the iconic drug that generated tens of billions of dollars in revenue over 20 years; what's in store for the little blue pill that never really harbored blockbuster dreams? ... Link to article in bio, as always! ... #viagra  #sildenafil  #FDA  #drugs  #medicine  #science  #research  #drugdevelopment  #chemistry  #quimica  #biochemistry  #physics  #biology  #TheSkepticalChemist