134 



Found. Required. 



Carbon .... 20'354 24' 158 



Hydrogen .. 5'356 5-050 



Baryta .... 36-880 37'090 



In that marked 'required' I have supposed the salt to bear the fol- 

 lowing formula and to be completely anhydrous, 2C 4 H 5 O, BaO, PO 3 , 

 but if we suppose that four atoms of water are present in the salt 

 analyzed, the relation will stand thus 



Found. Required. 



20-354 20-453 



5-356 5-540 



The formula would then be 2C 4 H 5 O, BaO, PO 3 + 4HO. 



When two atoms of baryta are made to act upon one atom of 

 the ether, a salt is obtained which does not crystallize, and it may 

 be evaporated in air without sensible decomposition. This salt is per- 

 fectly neutral to test paper ; when dry it is a white friable delique- 

 scent mass, the formula of which will be C 4 H 5 O, 2BaO, PO 3 . If 

 an excess of baryta is used, a white salt is thrown down on boiling, 

 which I suppose to be HO, 2BaO, PO 3 . 



I have prepared another compound with three equivalents of amyle. 

 This was obtained from amylate of soda by an analogous process to 

 that described for the phosphite of ethyl. 



Analysis has pointed out the formula 3C 10 H H O, PO 3 . Like 

 phosphite of ethyl it is easily decomposed on being heated in air ; 

 heated in hydrogen it is more stable and then boils at 236 C. It is 

 soluble in ether and in alcohol, but only slightly soluble in water. 



