Assertion: fertilizer's element | /r/HasProperty | sequestered by polyphosphate
Facets:
Source sentences:
text: If these elements are known to be sequestered by polyphosphates, how does this compare to other elements with higher equivalent weights commonly in poor-grade polyphosphate fertilizers such as lead (103), arsenic (25), cadmium (56), nickel (29), and mercury (100)?