Bentonite-based bleaching earth for purification and refining applications.
Compare eight grades for vegetable oils and fats, animal oils and fats and, for selected grades, mineral oils, paraffin and waxes. Explore grade-specific applications, adsorptive characteristics and technical data below.
Technical values are typical/average product data, not guaranteed specifications. A dash indicates a missing value. Numeric sorting uses the stated value or lower range bound; ~ indicates an approximate value. Expand a grade for applications and test methods.
360–500 g/L
12–20 %
2.2–4.8
7.0 mg KOH/g
210 m²/g
40–70 s
Applications
Vegetable oils and fats
Animal oils and fats
Mineral oils
Paraffin
Waxes
Adsorptive / Functional Characteristics
Adsorptive capacity for chlorophyll, carotenoids, phospholipids, peroxides and metals
Fast filtration
Particle Size — Dry Sieve Analysis
>150 µm: 10.0%
>100 µm: 20.0%
>63 µm: 35.0%
>45 µm: 45.0%
>25 µm: 60.0%
Porosity
0–80 nm: 0.65 ml/g
0–25 nm: 0.38 ml/g
0–14 nm: 0.26 ml/g
Typical Chemical Composition
SiO₂: 63.7%
Al₂O₃: 14.3%
Fe₂O₃: 4.0%
CaO: 1.8%
MgO: 3.4%
Na₂O: 1.2%
K₂O: 3.2%
LOI: 7.6%
Physical Properties & Test Methods
Appearance: Fine, yellowish-brown powder
Free Moisture: 12–20 % — 2 h, 110°C
pH: 2.2–4.8 — 10% suspension, filtered
Filtration Time: 40–70 s — BE 0013; loose
Chloride Content: <40 ppm
Loss on Ignition: 7.6 % — pre-dried, 2 h, 1000°C
550 g/L
10–15 %
2.2–4.8
0.6 mg KOH/g
200 m²/g
40–70 s
Applications
Vegetable oils and fats
Animal oils and fats
Mineral oils
Paraffin
Waxes
Adsorptive / Functional Characteristics
Adsorptive capacity for chlorophyll, carotenoids, phospholipids and peroxides
Fast filtration
Particle Size — Dry Sieve Analysis
>150 µm: 7%
>100 µm: 14%
>63 µm: 30%
>45 µm: 43%
>25 µm: 64%
Porosity
0–80 nm: 0.31 ml/g
0–25 nm: 0.27 ml/g
0–14 nm: 0.24 ml/g
Typical Chemical Composition
SiO₂: 68.6%
Al₂O₃: 16.4%
Fe₂O₃: 3.2%
CaO: 0.6%
MgO: 1.7%
Na₂O: 0.2%
K₂O: 1.8%
LOI: 6.7%
Physical Properties & Test Methods
Appearance: Fine, yellowish-grey powder
Free Moisture: 10–15 % — 2 h, 110°C
pH: 2.2–4.8 — 10% suspension, filtered
Filtration Time: 40–70 s — BE 0013; loose
Chloride Content: 0.1 mg Cl/g
Loss on Ignition: 6.7 % — predried, 2 h, 1000°C
480–560 g/L
12–17 %
2.0–4.5
1.0 mg KOH/g
190 m²/g
40–70 s
Applications
Vegetable oils and fats
Animal oils and fats
Mineral oils
Paraffin
Waxes
Adsorptive / Functional Characteristics
Adsorptive capacity for chlorophyll, carotenoids, phospholipids and peroxides
Fast filtration
Particle Size — Dry Sieve Analysis
>150 µm: 8%
>100 µm: 17%
>63 µm: 30%
>45 µm: 45%
>25 µm: 60%
Porosity
0–80 nm: 0.40 ml/g
0–25 nm: 0.26 ml/g
0–14 nm: 0.17 ml/g
Typical Chemical Composition
SiO₂: 65.1%
Al₂O₃: 15.3%
Fe₂O₃: 3.1%
CaO: 1.5%
MgO: 2.7%
Na₂O: 0.3%
K₂O: 1.7%
LOI: 9.2%
Physical Properties & Test Methods
Appearance: Fine, yellowish-brown powder
Free Moisture: 12–17 % — 2 h, 110°C
pH: 2.0–4.5 — 10% suspension, filtered
Filtration Time: 40–70 s — BE 0013; loose
Chloride Content: 0.1 mg Cl/g
Loss on Ignition: 9.2 % — predried, 2 h, 1000°C
500–620 g/L
12–20 %
2.2–4.8
1.0 mg KOH/g
190 m²/g
40–70 s
Applications
Vegetable oils and fats
Animal oils and fats
Mineral oils
Paraffin
Waxes
Adsorptive / Functional Characteristics
Adsorptive capacity for chlorophyll, carotenoids, phospholipids, peroxides and metals
Fast filtration
Particle Size — Dry Sieve Analysis
>150 µm: 8.0%
>100 µm: 17.0%
>63 µm: 30.0%
>45 µm: 45.0%
>25 µm: 60.0%
Porosity
0–80 nm: 0.40 ml/g
0–25 nm: 0.26 ml/g
0–14 nm: 0.17 ml/g
Typical Chemical Composition
SiO₂: 62.7%
Al₂O₃: 14.7%
Fe₂O₃: 3.6%
CaO: 2.1%
MgO: 3.9%
Na₂O: 1.0%
K₂O: 2.7%
LOI: 8.5%
Physical Properties & Test Methods
Appearance: Fine, yellowish-brown powder
Free Moisture: 12–20 % — 2 h, 110°C
pH: 2.2–4.8 — 10% suspension, filtered
Filtration Time: 40–70 s — BE 0013; loose
Chloride Content: <40 ppm
Loss on Ignition: 8.5 % — pre-dried, 2 h, 1000°C
610 g/L
~30 %
6–8
—
185 m²/g
30–50 s
Applications
Vegetable oils and fats
Animal oils and fats
Adsorptive / Functional Characteristics
Highly porous structure with active surface sites
Fast-filtration coarse grade
Particle Size — Dry Sieve Analysis
>150 µm: 2%
>100 µm: 4%
>63 µm: 30%
>45 µm: 43%
>25 µm: 56%
Porosity
0–80 nm: 0.46 ml/g
0–25 nm: 0.34 ml/g
0–14 nm: 0.23 ml/g
Typical Chemical Composition
SiO₂: 70.8%
Al₂O₃: 12.7%
Fe₂O₃: 3.4%
CaO: 2.2%
MgO: 1.8%
Na₂O: 1.0%
K₂O: 1.4%
LOI: 6.1%
Physical Properties & Test Methods
Appearance: Fine, bright beige powder
Free Moisture: ~30 % — 2 h, 110°C
pH: 6–8 — 10% suspension, filtered
Filtration Time: 30–50 s — BE 0013; loose
Chloride Content: <0.1 mg Cl/g
Loss on Ignition: 6.1 % — predried, 2 h, 1000°C
550–650 g/L
6–10 %
6–7
0.2 mg KOH/g
185 m²/g
20–40 s
Applications
Vegetable oils and fats
Animal oils and fats
Mineral oils
Paraffin
Waxes
Adsorptive / Functional Characteristics
Adsorption capacity for chlorophyll, carotenoids, phospholipids, peroxides and metals
Fast filtration
Particle Size — Dry Sieve Analysis
>150 µm: 5.0%
>100 µm: 13.5%
>63 µm: 25.0%
>45 µm: 35.0%
>25 µm: 60.0%
Porosity
0–80 nm: 0.24 ml/g
0–25 nm: 0.18 ml/g
0–14 nm: 0.14 ml/g
Typical Chemical Composition
SiO₂: 55.0%
Al₂O₃: 5.0%
Fe₂O₃: 1.8%
CaO: 1.0%
MgO: 25.9%
Na₂O: 0.4%
K₂O: 0.9%
LOI: 8.9%
Physical Properties & Test Methods
Appearance: Fine, beige powder
Free Moisture: 6–10 % — 2 h, 110°C
pH: 6–7 — 10% suspension, filtered
Filtration Time: 20–40 s — BE 0013; loose
Chloride Content: 0.1 mg Cl/g
Loss on Ignition: 8.9 % — predried, 2 h, 1000°C
550–650 g/L
6–10 %
6–7
0.2 mg KOH/g
187 m²/g
20–40 s
Applications
Vegetable oils and fats
Animal oils and fats
Mineral oils
Paraffin
Waxes
Adsorptive / Functional Characteristics
Adsorption capacity for chlorophyll, carotenoids, phospholipids, peroxides and metals
Fast filtration
Particle Size — Dry Sieve Analysis
>150 µm: 5.0%
>100 µm: 13.5%
>63 µm: 25.0%
>45 µm: 35.0%
>25 µm: 60.0%
Porosity
0–80 nm: 0.24 ml/g
0–25 nm: 0.19 ml/g
0–14 nm: 0.15 ml/g
Typical Chemical Composition
SiO₂: 54.4%
Al₂O₃: 5.3%
Fe₂O₃: 1.6%
CaO: 1.0%
MgO: 26.3%
Na₂O: 0.1%
K₂O: 0.9%
LOI: 9.0%
Physical Properties & Test Methods
Appearance: Fine, beige powder
Free Moisture: 6–10 % — 2 h, 110°C
pH: 6–7 — 10% suspension, filtered
Filtration Time: 20–40 s — BE 0013; loose
Chloride Content: 0.1 mg Cl/g
Loss on Ignition: 9.0 % — predried, 2 h, 1000°C
550–650 g/L
6–10 %
6–7
0.2 mg KOH/g
190 m²/g
20–40 s
Applications
Vegetable oils and fats
Animal oils and fats
Mineral oils
Paraffin
Waxes
Adsorptive / Functional Characteristics
Adsorption capacity for chlorophyll, carotenoids, phospholipids, peroxides and metals
