Swim have utfse, but all he find is the ratio E:I2 1:1.2 - 1.5. But when 1.5 I2 --> 3 HI.
If swim use 60g e(0.298 mol) he must use 0.495mol(125.73)I2 to reduce 60g ephedrin. 125.73g/60g=2.0955
So swim think the ratio 1.2-1.5 is to small. Is this right? Íf swim have wrong this must be wrong to P + 1.5 I2 + 3 H2O --> 3 HI + 2 H3PO3