الأسمدة

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

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%

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%