Silicon Dioxide STD

Technical Data

Properties	Units	Target Values(SpecLimits)	Test results
Silicon dioxide content (dry product)	%	≥98	99.7
Loss on drying 105℃2h	%	4.0–7.0	5.1
Loss on ignition 950℃2h	%	≤7.0	4.2
Specific surface area	m2g	170–180	176
Oil absorption value	g/100g	260-280	267
Iron content	mg/kg	≤1000	315
Residue on the sieve(45um)	%	＜0.5	0.01
PH Value		6.5–7.5	7
Appearance		Better than or equal to the standard	Equal to standard

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