TJranyl Phosphate })y the Zinc Rediictor. 

 The results obtained are shown in the following table : 



239 



PuOe 



taken. 



UO3 

 corre- 

 spond- 

 ing to 



P.O5 

 taken. 



H2SO4 

 (1-84). 



Dilu- 

 tion 



at re- 

 duc- 

 tion. 



KMn04. 



UO3 

 found. 



Error on 

 UO3. 



Error on 

 P^Oa. 



grm. 



grm. 



cm^. 



cm^. 



cm^. 



grm. 



grm. 



grm. 



0-0404 



0-1630 



25 



150 



11-06 



0-1632 



4-0-0002 



+ 0-00005 



0-0404 



0-1630 



25 



150 



11-03 



0-1628 



— 0-0002 



— 0-00005 



0-0226 



0-0912 



20 



120 



6-14 



0-0906 



-0-0006 



-0-00015 



0-0226 



0-0912 



20 



120 



6-17 



0-0911 



— 0-0001 



-0-00002 



0-0V19 



0-2902 



25 



150 



19.62 



0.2896 



-0-0006 



-0-00015 



0-0719 



0-2902 



25 



150 



19-61 



0-2894 



-0-0008 



— 0-00020 



. The results are all that can be desired as far as accuracy is 

 concerned. The only objection to the process is that the filter- 

 ing and washing of the precipitate are apt to be slow, espe- 

 cially when large amounts of the material are being treated. 



In conclusion the author wishes to thank Professor F. A. 

 Gooch for many helpful suggestions given during the course 

 of this work. 



