Product: Silica Gel Type B
CAS NO: 112926-00-8
Molecular formula: SiO2.nH2O
Properties:
Milky white, transparent or translucent. Average pore diameter 4.5-7.0nm. Specific surface area 450-650 m2/g. Pore volume 0.60-0.85 ml/g. Structure lying between macro-pored and fine-pored silica gel.
Application:
Mainly used as liquid adsorbents, drier and perfume carriers, also may be used as catalyst carriers, silica sands, etc.
Specification:
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Items
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Discoloring
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Blue
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Adsorption capacity, 25 ºC (%)
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RH=10%
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4.0 min.
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3.0 min.
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RH=20%
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11.0 min.
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10.0 min.
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RH=80%
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70.0 min.
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50.0 min.
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Qualified ratio of spherical granules (%)
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82 min.
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-
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Loss on Heating (%)
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2.0 max.
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2.0 max.
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PH
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5.5-7.5
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4-8
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Specific resistance (Ω.cm)
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5000 min.
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3000 min.
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Silica (%)
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98 min.
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98 min.
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Qualified size ratio (%)
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Negotiable
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Negotiable
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Bulk density (g/l)
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Negotiable
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Negotiable
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Size
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0.5-1.5 mm, 2-5mm, 3-5 mm, 4-8mm
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Note: The qualified rate of spherical particles is only suitable for silica gel B type bead.
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