The effects of cooling rate on the chemical durability of iron phosphate waste forms containing up to 40 wt% of a high MoO₃ Collins-CLT waste simulant were determined at 90 °C using the product consistency test (PCT). The waste form, designated 40wt%-5, meets appropriate Department of Energy (DOE) standards when rapidly quenched from the melt (as-cast) and after slow cooling following the CCC (canister centerline cooling)-protocol, although the quenched glass is more durable. The analysis of samples from the vapor hydration test (VHT) and the aqueous corrosion test (differential recession test) reveals that rare earth orthophosphate (monazite) and Zr-pyrophosphate crystals that form on cooling are more durable than the residual glass in the 40wt%-5 waste form. The residual glass in the CCC-treated samples has a greater average phosphate chain length and a lower Fe/P ratio, and those contribute to its faster corrosion kinetics.

冷却速率对包含高达40 wt％的高MoO _3的磷酸铁废料的化学耐久性的影响使用产品一致性测试（PCT）在90°C下确定了Collins-CLT废物模拟物。当从熔体中快速淬火（铸造时）和遵循CCC（罐中心线冷却）协议缓慢冷却后，指定为40wt％-5的废物形式符合美国能源部（DOE）标准，尽管淬火玻璃是更耐用。蒸汽水化试验（VHT）和水腐蚀试验（微分后退试验）的样品分析表明，冷却时形成的稀土正磷酸盐（独居石）和Zr-焦磷酸盐晶体比40％（重量）的残留玻璃更耐用。 -5废料形式。经过CCC处理的样品中的残留玻璃具有较大的平均磷酸盐链长度和较低的Fe / P比，并且这些玻璃有助于其更快的腐蚀动力学。