350 Browning and Flint — Complexity of Tellurium. 









Table II. 











2Te0 2 . 



Te0 2 



Te0 2 



Error 



Te0 2 



Te0 2 



Error 





HN0 3 



theory 



found 



on Te0 2 



theory 



found 



on Te0 2 





grm. 



grm. 



grm. 



grm. 



grm." 



grm. 



grm. 



Alpha 





(Te= 



126-5) 





(Te=127'5) 





(i) 



0-2537 



0-2116 



0-2119 



+ 0-0003 



0-2118 



0-2132 



+ 0-0014 



(2) 



0-2508 



0-2092 



0-2093 



+ 0-0001 



0-2094 



0-2106 



+ 0-0012 



(3) 



0-2521 



0-2103 



0-2102 



—o-oooi 



0-2105 



0-2115 



+ 0-0010 



(*) 



0-2508 



0-2092 



0-2092 



o-oooo 



0-2094 



0-2105 



+ 0-0011 



(S) 



0-2523 



0-2104 



0-2300 



— 0-0004 



0-2107 



0-2113 



+ 0-0006 



(6) 



0-2511 



0-2094 



0-2092 



— 0-0002 



0-2097 



0-2105 



+ 0-0008 



Beta 





(Te= 



128-9) 





(Te= 127-5) 





(i) 



0-2504 



0-2094 



0-2095 



+ 0-0001 



0-2091 



0-2077 



— 0-0014 



(2) 



0-2500 



0-2090 



0-2086 



— 0-0004 



0-2087 



0-2068 



— 0-0019 



(3) 



0-2505 



0-2095 



0-2095 



0-0000 



0-2092 



0-2075 



— 0-0017 



(*) 



0-2505 



0-2095 



0-2095 



o-oooo 



0-2092 



0-2075 



— 0-0017 



(5) 



0-2504 



0-2094 



0-2100 



+ 0-0006 



0-2091 



0-2083 



— 0-0008 



(6) 



0-2501 



0-2091 



0*2093 



+ 0-0002 



0-2088 



0-2076 



— 0-0012 



excess of acid removed as much as possible by careful evapor- 

 ation ; the dilution was with two hundred cubic centimeters of 

 boiling distilled water, and the ammonia and acetic acid were 

 added from burettes. Filtration was performed after standing 

 over night. These results appear in Table III. 







Table III. 











Te0 2 



Te0 2 









2Te0 2 . HNO3 



theory 



found 



Error 



Per cent 





grm. 



grm. 



grm. 



grm. 



Te0 2 



Alpha 





(Ter 



=126-5) 







(i) 



0-2506 



0-2090 



0.2093 



+ 0-0003 



83-51 



(2) 



0-2505 



0-2089 



0-2088 



—o-oooi 



83-35 



(3) 



0-2529 



0-2109 



0-2108 



—o-oooi 



83-35 



(4) 



02510 



0-2094 



0-2093 



—o-oooi 



83-39 



(*) 



0*2507 



0-2091 



0-2091 



o-oooo 



83-41 



Beta 





(Te= 



= 128-9) 







(1) 



0-2512 



0-2101 



0-2097 



-0-0004 



83-48 



(2) 



0-2514 



0-2102 



0-2103 



+ 0-0001 



83-65 



(3) 



0-2504 



0-2094 



0-2095 



+ 0-0001 



83-66 



W 



0-2507 



0-2096 



0-2095 



— 00001 



83-57 



(5) 



0-2612 



0-2101 



0-2100 



—o-oooi 



83-60 



For alpha the mean percentage of dioxide is 83-40 per cent, 

 or Te=126-31; beta, 83*59 per cent, or Te=128'81. 



