République Tunisienne
Ministère de l'Industrie et des Petites et Moyennes Entreprises
République Tunisienne
Ministère de l'Industrie et des Petites et Moyennes Entreprises
| Specifications | Typical % | Micronutrients | Typical % | ||
|---|---|---|---|---|---|
| Phosphorus Pentoxide | P2O5 | 28 - 29 | Chlorine Zinc | Cl Zn | 900 ppm 370 ppm |
| Sulfur Trioxide | SO3 | 3 - 4 | Manganese | Mn | 30 ppm |
| Carbon Dioxide | CO2 | 6.0 - 7.0 | Cobalt | Co | 20 ppm |
| Total Silica | SiO2 | 2.5 - 3.6 | Cupper | Cu | 19 ppm |
| Calcium oxide | CaO | 48 - 50 | Molybdenium | Mo | 50 ppm |
| Magnesium oxide | MgO | 0.6 - 0.7 | |||
| Iron Oxide | Fe2O3 | 0.3 - 0.4 | |||
| Aluminium Oxide | Al2O3 | 0.4 - 0.6 | |||
| Sodium Oxide | Na2O | 1.2 - 1.4 | |||
| Potassium Oxide | K2O | 0.10 - 0.14 | |||
| Fluorine | F | 3.0 | |||
| Organic Carbon | 1.0 | ||||
| Moisture (H2O) | 3.0 max |
| Undersize | wt % minimum |
|---|---|
| Mesh, Tyler 32 (0.500 mm) | 90 |
| Mesh, Tyler 60 (0.250 mm) | 75 |
| Mesh, Tyler 80 (0.180 mm) | 60 |
| Mesh, Tyler 100 (0.150 mm) | 50 |
| Method | % of Total P2O5 | % of Rock |
|---|---|---|
| Ammonium Citrate (AOAC) | ||
| Neutral Ammonium Citrate - 2nd extraction Ammonium Citrate pH3 | 28 - 30 73 - 75 | 8 - 9 22 - 25 |
| 2% Citric Acid | ||
| European Union Others (as received unground rock) | 40 - 45 30 - 32 | 12 - 14 10 - 11 |
| 2% Formic Acid | ||
| European Union Others (as received unground rock) | 70 - 77 54 - 58 | 21 - 24 16 – 18 |
| Designation | Element | Concentration |
|---|---|---|
| Specifications in % on Dry Basis Chemical Analysis | ||
| Phosphorus Pentoxide | P2O5 | 29-30% |
| Sulfur Trioxide | SO3 | 3-4% |
| Carbone dioxide | CO2 | 6,0% |
| Total silica | SiO2 | 2,5-3,5% |
| Calcium oxide | CaO | 48-49% |
| Magnesium | MgO | 0,45-0,70% |
| Iron oxide | Fe2O3 | 0,2-0,3% |
| Aluminium oxide | AI2O3 | 0,4-0,6 |
| Sodium oxide | Na2O | 1,3% |
| Potassium oxide | K2O | 0,04-0,10% |
| Fluorine | F | 3,0-3,5% |
| Organic carbon | CO | 0,5-0,8% |
| Moisture in % on natural state | Max : 3% | |
| (CaO - 0,7SO3) / P2O5 | 1,57 |
| (Fe2O3 + AI2O3 + MgO) / P2O5 | 0,045-0,050 |
| Analysis CEF method | |
| Solubility in formic acid 2% | 70-80% |
| Solubility in citric acid 2% | 40-45% |
| Mesh in microns | In mesh (Tyler) | % by weight |
| > 500 | > 32 | 10-20% |
| < 250 | < 60 | 70-80% |
| Designation | Element | Concentration |
|---|---|---|
| Phosphorus Pentoxide | P2O5 | 52-56% |
| Calcium Oxide | CaO | 0,5% max |
| Sulfuric Acid | H2SO4 | 2,5% max |
| Iron Oxide | Fe2O3 | 1% max |
| Aluminium Oxide | Al2O3 | 0,5% max |
| Magnesium Oxide | MgO | 0,9-1,4% |
| Fluorine | F | 0,25-0,4% |
| Carbon | C | 0,04% max |
| Specific Gravity | g/cm3 | 1,7% |
| Total Nitrogen | min 18% | |
| Total P2 O5 | min 46% | |
| Water / citrate-soluble | P2 O5 | min 46% |
| Water-soluble | P2 O5 | min 43% |
| Moisture | max 1,7% |
| % by weight between 1 and 4 mm | min 95% |
| Designation | Element | Concentration |
|---|---|---|
| Total Nitrogen | N | 11% min |
| Phosphorus | P2O5 (T) | 52% min |
| Pentoxide | ||
| Water/Citrate-Soluble | P2O5 (SE+C) | 52% min |
| Water Soluble | P2O5 (SE) | 49% min |
| Moisture | H2O | 1,7% max |
| Screen Analysis : % by weight 1-4 mm | 95% min |
| Designation | Element | Concentration |
|---|---|---|
| Phosphorus Pentoxide | P2O5 (T) | 47% min |
| Water/Citrate-Soluble | P2O5 (SE+C) | 46% min |
| Water Soluble | P2O5 (SE) | 43% min |
| Moisture | H2O | 4% max |
| Free Acid | P2O5 | 4% max |
| Screen Analysis :% by weight 1-5 mm | 94% min |
| P2O5 | Total | 22% min |
| P2O5 | Water/Citrate Soluble | 20% min |
| P2O5 | Water Soluble | 17% min |
| Ca | Calcium | 21% min |
| S | Sulfur | 10% min |
| H2O | Moisture | 5% max |
| P2O5 | Freea acide | 1% max |
| Micronutrients | ||
| Zn | Zine | 160 - 200 ppm |
| Cu | Copper | 5 - 10 ppm |
| Mn | Manganese | 15 - 20 ppm |
| Mo | Molybdenum | 4 - 5 ppm |
| Heavy Metal | ||
| Cd | Cadmium | 20 - 30 ppm |
| As | Arsenie | < 1 ppm |
| Hg | Mercure | < 1 ppm |
| Pb | Lead | < 1 ppm |
| Density | 1.25 | |
| Color | Dark Grey / Dark Brown | |
| Form | Granular | |
| Granular size (mm) | ||
| > 5 | 3% max | |
| (1 - 5) | > 94% | |
| < 1 | 3% max |
| Designation | Element | Concentration |
|---|---|---|
| Phosphorus | P | 17,5% min |
| Calcium | Ca | 22% min |
| Fluorine | F | 0,2% max |
| Moisture | H2O | 3% max |
| Lead | Pb | 10 ppm max |
| Arsenic | As | 5 ppm max |
| Cadmium | Cd | 10 ppm max |
| Mercury | Hg | 0,1ppm max |
| Insoluble Hydrogen Chloride | HCl | 0,9% max |
| Soluble Citrate | 98% min | |
| Screen Analysis : % by weight ˂1 mm | 90% min |
| Designation | Element | Concentration |
|---|---|---|
| Total Nitrogen | N | 33,5% min |
| Ammonia Nitrogen | 16,75% min Nnitrogen | |
| Nitric Nitrogen | Nnitric | 16,75% min |
| Moisture | H2O | 0,3% max |
| Screen Analysis : % by weight 1-4 mm | 95% min |
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