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Table Z-1 to Subpart Z of Part 98—Default Chemical Composition of Phosphate Rock by Origin

Default Chemical Composition of Phosphate Rock by Origin

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  3. Title 40
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  5. Chapter I
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  7. Part 98
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  9. Subpart Z
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  11. Appendix Table Z-1 to Subpart Z of Part 98
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Displayed edition2026-04-15
Last updated2026-04-15

Table Z-1 to Subpart Z of Part 98—Default Chemical Composition of Phosphate Rock by Origin

OriginTotal carbon

(percent by weight)
Central Florida1.6
North Florida1.76
North Carolina (Calcined)0.76
Idaho (Calcined)0.60
Morocco1.56