Phosphorous Oxychloride is used in the synthesis of LSD-25, however it is extremely expensive to buy from chemical vendors.
NOTE: I have not tried this synthesis myself, however based on the rxns, it seems like it works.
Reagents
- Boric acid
- Trichloroisocyanuric acid
- Hydrochloric Acid
- White Phosphorous
Phosphorous Pentachloride
We must first make PCl3, via the reaction of
P4 + 6 Cl2 → 4 PCl3
The Chlorine in this reaction can be made by adding hydrochloric acid dropwise to trichloroisocyanuric acid, which should then be bubbled above the phosphorous.
If we leave this rxn continue, it will react with the excess chlorine and form PCl5:
PCl3 + Cl2 ⇋ PCl5
mp: 106.5C, bp: 166.8C, solid at STP.
Phosphorous Pentachloride to Phosphorous Oxychloride
Ref: Handbook of Inorganic Chemicals (2003), pg 709
The rxn taking place is between boric acid (which can be made by adding an solution of hydrochloric acid and water to a solution of borax), and the phosphorous pentachloride
we just made:
3 PCl5 + 2 B(OH)3 → 3 POCl3 + B2O3 + 6 HCl
Alternate Method
Same literature as mentioned before. This method requires PCl3, which has already been covered. If you add potassium chlorate, potassium oxychloride is formed:
3 PCl3 + KClO3 → 3 POCl3 + KCl
NOTE: I have not tried this synthesis myself, however based on the rxns, it seems like it works.
Reagents
- Boric acid
- Trichloroisocyanuric acid
- Hydrochloric Acid
- White Phosphorous
Phosphorous Pentachloride
We must first make PCl3, via the reaction of
P4 + 6 Cl2 → 4 PCl3
The Chlorine in this reaction can be made by adding hydrochloric acid dropwise to trichloroisocyanuric acid, which should then be bubbled above the phosphorous.
If we leave this rxn continue, it will react with the excess chlorine and form PCl5:
PCl3 + Cl2 ⇋ PCl5
mp: 106.5C, bp: 166.8C, solid at STP.
Phosphorous Pentachloride to Phosphorous Oxychloride
Ref: Handbook of Inorganic Chemicals (2003), pg 709
The rxn taking place is between boric acid (which can be made by adding an solution of hydrochloric acid and water to a solution of borax), and the phosphorous pentachloride
we just made:
3 PCl5 + 2 B(OH)3 → 3 POCl3 + B2O3 + 6 HCl
Alternate Method
Same literature as mentioned before. This method requires PCl3, which has already been covered. If you add potassium chlorate, potassium oxychloride is formed:
3 PCl3 + KClO3 → 3 POCl3 + KCl