YLYSIA 350 FCP: Technical Specifications, Purity Standards and Application Advantages

Created on 04.16

SYLYSIA 350 FCP: Technical Specifications, Purity Standards and Application Advantages

SYLYSIA® 350 FCP is a high-purity, food-grade and pharmaceutical-grade porous amorphous silica, widely used in food, pharmaceutical, cosmetic and nutraceutical formulations. It offers excellent anti-caking, flow improvement, liquid adsorption, active ingredient loading and stable carrier functions, fully complying with global safety and regulatory requirements.

Laboratory setting with high-purity porous amorphous silica

Core Physical and Chemical Indicators (Official Measured Values)

Infographic of SYLYSIA 350 FCP core indicators

Item	Typical/Specified Value	Unit	Remark
Appearance	White fine powder	-	Amorphous, porous, micronized
Odor	Odorless	-	Tasteless
Chemical property	Chemically inert	-	Insoluble in water and dilute acids
True Specific Gravity	2.15	-	Material density
Refractive Index	1.46	-	Optical property
Whiteness	≥95	%	High purity, bright white color
pH value (5% aqueous suspension)	7.0	-	Neutral, mild and stable
Specific Surface Area (BET)	300	m²/g	Strong adsorption capacity
Average Pore Diameter	Approx. 22–25	nm	Mesoporous structure
Pore Volume	1.6	mL/g	Excellent liquid and oil loading capacity
Average Particle Size (D50)	3.9	μm	Tested by laser particle size analyzer (SALD)
Apparent Bulk Density	7.0	lbs/ft³	Approx. 0.112 g/mL, light and fluffy
Oil Absorption	310	mL/100g	Excellent oil adsorption and loading performance
Loss on Ignition / Loss on Drying	≤5.0	%	145 °C, 4 h
Total Volatiles	≤8.5	%	1000 °C, 2 h

Purity and Impurity Limits (Strict Compliance)

These specifications are critical for food and pharmaceutical excipient applications. SYLYSIA® 350 FCP fully meets USP 32‑NF27 standards.

Impurity Item	Maximum Limit	Unit	Description
Silicon Dioxide (SiO₂)	≥99.5	%	High primary content
Arsenic (As)	3	ppm	Extremely low toxic residue
Heavy Metals	0.001	%	Equivalent to 10 ppm
Chloride (Cl)	0.1	%	Dry basis
Sulfate (SO₄)	0.1	%	Dry basis

Packaging and Storage

• Packaging: 10 kg/bag (aluminum foil-lined moisture-proof packaging)

• Storage: Keep sealed in a cool and dry place to avoid moisture absorption

Key Supplementary Notes

1. Numerical Variation Explanation

• The specific surface area is listed as 300 m²/g, which may differ slightly from common series references. As a premium grade in the series, actual batch BET values typically range from 290 to 320 m²/g and fully meet official specifications.

• Particle size of 3.9 μm refers to the average primary or aggregate size, with good dispersibility and low dusting.

2. Application Value

With high oil absorption of 310 mL/100g and large pore volume of 1.6 mL/g, SYLYSIA® 350 FCP delivers outstanding performance in powder oil solidification, traditional Chinese medicine powder adsorption, and sustained‑release tablet carrier applications.

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