Soda ASH 

 - 3rd ed. 
 - [s.l.]:   Sovay Technical and Engineering Service,  1952  
 - Solvay Technical   Engineering Service ; 5 .
<br/><br/><label>Standard No.: </label>DEX-M4337 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ANHIDRA<br/>SOSA CALCINADA
<br/><br/><label>Universal Decimal Class. No.: </label>661.333