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Fumed Silica(1250-Mesh)

Fumed silica is made from flame pyrolysis of silicon tetrachloride vaporized in a 1800℃ electric arc.

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Fumed Silica

Fumed silica is made from flame pyrolysis of silicon tetrachloride vaporized in a 1800℃ electric arc.

// Product Technical Specifications

Technical Index	Measuring Units	Models & Test Results
		YJ-958	YJ-968	YJ2#	YJ4#
Specific Surface Area	m2/g	130-180	170-230	270-330	350-410
PH value		3.6-4.5	3.6-4.5	3.6-4.5	3.6-4.3
Burning Loss Weight Mass Fraction wt	%	≤2.5	≤2.5	≤2.5	≤2.0
105°C volatiles mass fraction 2h	%	≤1.5	≤1.5	≤1.5	≤2.5
Appear ance Density	g/L	25-60	25-60	25-60	30-60
Particle size		10-40vm	10-40vm	10-40vm	7-40vm
45μm sieve residue	%	≤0.05	≤0.05	≤0.05	≤0.05
SiO2 Content	%	≥99.8	≥99.8	≥99.8	≥99.8
Al22O3 Content	%	≤0.05	≤0.05	≤0.05	-
TiO2 Content	%	≤0.03	≤0.03	≤0.03	-
Fe2O3 Content	%	≤0.003	≤0.003	≤0.003	-

// Applications

Food, health care products, cosmetics, batteries, lithium batteries, gel batteries, paint, paint, ink, printing ink, PBC ink, unsaturated polyester resin, coating and laminating resin.