The Vespiary

The Hive => Chemistry Discourse => Topic started by: Dazza on February 12, 2002, 09:13:00 PM

Title: wait there....
Post by: Dazza on February 12, 2002, 09:13:00 PM
... i didn't know you could get hydroiodic acid by reacting iodine with phosphoric acid!, but according to this document u can-

https://www.thevespiary.org/rhodium/Rhodium/chemistry/mmda.txt (https://www.thevespiary.org/rhodium/Rhodium/chemistry/mmda.txt)



cuz phosphoric acid is alot more available that red phosphorus!
Title: Re: wait there....
Post by: Rhodium on February 12, 2002, 11:03:00 PM
Read again. The document proposes to generate HI and phosphoric acid from iodine and red P, so your assumption is way off.
Title: Re: wait there....
Post by: Dazza on February 13, 2002, 09:17:00 PM
oh... damn
well i went back and reread it and it still looks like it says that you can do it that way-

"For this you will need to generate HI. You can do this either by dripping
dH2O onto RP/I2, or phosphoric acid onto I2."
Title: Re: wait there....
Post by: Rhodium on February 13, 2002, 09:20:00 PM
OK, then the error is in the main text. You can make 57% HI by distilling a mixture of dilute phosphoric acid and KI or NaI.