Can someone identify this chemical compound

Thread starter Mattenerinfo
Start date May 26, 2011
Tags

Chemical

May 26, 2011

Mattenerinfo

I am unable to identify it.

Chemistry news on Phys.org

May 26, 2011

phyzguy

Science Advisor

Try this site

http://webbook.nist.gov/chemistry/form-ser.html

May 26, 2011

Mattenerinfo

I couldn't find it

May 27, 2011

DrDu

Science Advisor

googling for C17H18N2O6 yields thousands of pages pointing to Nifedipine.

May 29, 2011

Nemus

Yes, nifedipine, a calcium channel blocker for blood pressure regulation.

Thread 'Solubility of MgSO47H2O in water'

It seems like a simple enough question: what is the solubility of epsom salt in water at 20°C? A graph or table showing how it varies with temperature would be a bonus. But upon searching the internet I have been unable to determine this with confidence. Wikipedia gives the value of 113g/100ml. But other sources disagree and I can't find a definitive source for the information. I even asked chatgpt but it couldn't be sure either. I thought, naively, that this would be easy to look up without...

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Thread 'Enthalpy - published values'

Do the published values of Enthalpy include the work done against a constant pressure, e.g., the atmosphere? (I am not a chemist). I am reviewing enthalpy and entropy as part of the statistical mechanics applied to transistors. I assume, from my reading, that the work done would mostly apply to reactions involving gasses.

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Thread 'Why does having 8 valence electrons make an element inert?'

I was introduced to the Octet Rule recently and make me wonder, why does 8 valence electrons or a full p orbital always make an element inert? What is so special with a full p orbital? Like take Calcium for an example, its outer orbital is filled but its only the s orbital thats filled so its still reactive not so much as the Alkaline metals but still pretty reactive. Can someone explain it to me? Thanks!!

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Bluesky LinkedIn

Can someone identify this chemical compound

Thread 'Solubility of MgSO47H2O in water'

Thread 'Enthalpy - published values'

Thread 'Why does having 8 valence electrons make an element inert?'

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