Product description
HB-7139 is hydrophobic fumed silica which is produced by HL7200 after chemical post-treatment with PMDS (Polydimethylsiloxane).
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Specification
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IOTA HB7139
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Specific sunface area(BET), ㎡/g
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200±20
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pH value in 4% dispersion
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5.5～7.5
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Loss on drying(2 hours at 105℃), %
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≤1.5
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Loss on ignition(2 hours at 1000℃ based on material dried for 2 hours at 105℃), %
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≤10.0
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Silica Content(Based on ignited material), %
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≥99.8
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Tamped Density(Based on material dried at 105℃ for 2 hours), g/L
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40～60
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Carbon Content (Based on material dried at 105℃ for 2 hours), %
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4.5～6.5
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