"Reduction of Phytalonsäure to Phytalid-Carbonsäure
With potassiumiodide in diluted hydrochloric acid. 19,4g Phytalonsäure (0,1mol) have been boiled together with 8,3g KI (25% of theory) and 6g phosphorus for 4 hours in 12ccm conc. HCl and 22ccm....."
The rest is description of the workup, yields had been 78% of theory, 2,1g phosphorus were regathered.
Sorry I dont know the english names of the compounds.
Phosphorus produces no HI from KI as far as I know and the amount would be to low to do all the HI production and recycling if I didnt miscalculated it.
This is translated from this reference:
https://www.thevespiary.org/rhodium/Rhodium/djvu/miescher.djvu
Thats why I asked.
Please look at this post also:
Post 445996 (missing)
(ragnaroekk: "Nobody really read this it seems", Stimulants)where I repost parts of an older thread where it is also stated that HCl + KI works for making HI (Crankenstein and Prickleberry)
I am a Bollock.
RaG