项 目 Item |
工业级指标 Industrial Grade |
||
优级 Excellent class |
一级 First class |
二级 Second class |
|
三聚磷酸钠(Na5P3O10) , w/% ≥ Main contents |
96 |
90 |
85 |
五氧化二磷(以P2O5计) , w/% ≥ P2O5 |
57.0 |
56.5 |
55.0
|
水不溶物,w/% ≤ Water insoluble |
0.10 |
0.10 |
0.15 |
铁(以Fe计) , w/% ≤ Iron (as Fe) |
0.007 |
0.015 |
0.030 |
百度,% ≥ Whiteness |
90 |
85 |
80 |
pH值(1%溶液) pH value (1%solution) |
92 ~ 10.0 |
||
颗粒度 Particle size |
通过1.00mm试验筛的筛分率不低于95% Through 1.00mm mesh sieve≥95% |
||
l型含量和表观密度达客戸要求。Phase l and bulk density:According to customer’s demand. |
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