Name: ZEMSIL FS-150
Brand: ZEMSIL

Question 1

What is ZEMSIL FS-150?

Accepted Answer

ZEMSIL FS-150 (Fumed Silica (Hydrophilic), CAS 112945-52-5) is a ZEMSIL® silicone material. ZEMSIL FS-150 is a hydrophilic fumed silica with BET surface area of 150 m²/g, produced by flame hydrolysis of silicon tetrachloride. Amorphous, non-porous primary particles of approximately 14 nm aggregate into chain-like structures. Used as reinforcing filler in silicone elastomers, thickening agent in coatings and adhesives, and flow aid in pharmaceutical and food applications. The 150 m²/g surface area provides moderate reinforcement with lower viscosity impact compared to higher surface area grades.

Question 2

What are the main applications of ZEMSIL FS-150?

Accepted Answer

ZEMSIL FS-150 is used in: Silicone Rubber, Coatings, Adhesives, Pharmaceuticals, Food & Feed, Cosmetics.

Question 3

What are the key specifications of ZEMSIL FS-150?

Accepted Answer

BET Surface Area: 150 ± 15 m²/g; Primary Particle Size: ~14 nm; SiO₂ Content: ≥99.8 %; Moisture (105°C, 2h): ≤1.5 %; Ignition Loss (1000°C): ≤1.0 %; pH (4% dispersion): 3.7–4.7; Bulk Density: ~50 g/L

Question 4

What is the CAS number of ZEMSIL FS-150?

Accepted Answer

The CAS number of ZEMSIL FS-150 (Fumed Silica (Hydrophilic)) is 112945-52-5.

ZEMSIL FS-150

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指标	数值	单位	测试方法
BET Surface Area	150 ± 15	m²/g	ISO 9277
Primary Particle Size	~14	nm	—
SiO₂ Content	≥99.8	%	—
Moisture (105°C, 2h)	≤1.5	%	—
Ignition Loss (1000°C)	≤1.0	%	—
pH (4% dispersion)	3.7–4.7	—	—
Bulk Density	~50	g/L	—