| 摘要 |
<p>Process for manufacturing tetrasodium pyrophosphate from sodium tripolyphosphate and sodium carbonate or a sodium salt capable of forming sodium carbonate on calcination, wherein sodium carbonate or a salt capable of forming sodium carbonate is added to adjust the mol ratio of sodium to phosphorus to about 2, the mixture is milled and heated to from 300 DEG C to 700 DEG C.</p> |
