I9I5] Charles J. Robinson and J. Howard Mueller iii 



desiccator, a white, opaque solid being produced, weighing lo gm. 

 This could be readily powdered in a mortar. It gave a streng acid 

 reaction to litmus paper. The substance was dried for analysis 

 at 100° C Analytic data: 



0.3052 gm. gave 0.1563 gm. MgoP^Or. 

 0.2163 gm. gave 0.1385 gm, CO2 and 0.0828 gm, H^O, 

 Found: P, 14.27%; C, 17.46%; H, 4.32%, 



Quantitative determinations 9f nitrogen were not made, but qualitative tests 

 showed its presence in traces only. Qualitative tests for bases sliowed mag- 

 nesium and potassium in fairly large quantities, calcium and sodium in traces. 



This material, after treatment with boiHng hydrochloric acid sol,, 

 reduced Fehling sol, but not before. The vapors from the boiling 

 mixture colored a strip of anilin-acetate paper pink, indicating the 

 production of furfurol from pentose. Polariscopic examination 

 of a 10 percent sol, showed optical inactivity. This Solution was 

 boiled for some time with an equal vol. of conc. hydrochloric acid 

 so!., the water lost by evaporation being replaced, and the Solution, 

 which had darkened considerably, was decolorized with animal 

 charcoal. Polariscopic examination now showed what was judged 

 to be a very slight dextro-rotation, but so slight as to be uncertain. 



Preparation of the hariiim sali. All the remaining material, 

 weighing 5,5 gm., was dissolved in 200 c.c. of dil. hydrochloric 

 acid sol. and, after heating nearly to boiling, barium hydroxid sol. 

 was added to alkalin reaction and the precipitate filtered out. The 

 filtrate was reserved for further examination. The precipitate 

 was dissolved in dil. hydrochloric acid sol. and barium hydroxid 

 again added to alkalin reaction. The precipitate was again dis- 

 solved in dil. acid sol. and reprecipitated with 3 vol. of alcohol. 

 After undergoing three more purifications by precipitation with 

 alcohol, the substance was washed with alcohol and ether, and 

 dried. The product, weighing 2.5 gm., was a white amorphous 

 powder, having an acid reaction. Dried for analysis at 130° C, 

 the material turned slightly gray. Analytic data: 



0.3017 gm. gave 0.1568 gm. BaSO« and 0.1430 gm. Mg^PjO,. 

 Found: Ba, 30.59%; P, 13.16%. 



Found: by Anderson — Ba, 31.29%; P, 12.71%. 



