Name: ZEMSIL PS-VN3
Brand: ZEMSIL

Question 1

What is ZEMSIL PS-VN3?

Accepted Answer

ZEMSIL PS-VN3 (Precipitated Silica (Rubber Reinforcing Grade), CAS 7631-86-9) is a ZEMSIL® silicone material. ZEMSIL PS-VN3 is a classic rubber-reinforcing precipitated silica equivalent to Ultrasil VN3 and Hi-Sil 233. BET ~175 m²/g with optimized morphology for rubber compounding. Workhorse grade for tire tread, shoe sole, and industrial rubber. Compatible with all silane coupling agents for low-rolling-resistance formulations.

Question 2

What is ZEMSIL PS-VN3 equivalent to?

Accepted Answer

ZEMSIL PS-VN3 is equivalent to Ultrasil VN3, Hi-Sil 233 and can be used as a direct drop-in replacement in most formulations.

Question 3

What are the main applications of ZEMSIL PS-VN3?

Accepted Answer

ZEMSIL PS-VN3 is used in: Tire Tread, Shoe Soles, Mechanical Rubber Goods, Conveyor Belts.

Question 4

What are the key specifications of ZEMSIL PS-VN3?

Accepted Answer

BET Surface Area: 175 ± 15 m²/g; DBP Absorption: ~190 mL/100g; SiO₂ Content (dry basis): ≥96 %; Moisture (105°C, 2h): ≤7 %; pH (5% suspension): 6.0–7.5

Question 5

What is the CAS number of ZEMSIL PS-VN3?

Accepted Answer

The CAS number of ZEMSIL PS-VN3 (Precipitated Silica (Rubber Reinforcing Grade)) is 7631-86-9.

ZEMSIL PS-VN3

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Показатель	Значение	Единица	Метод испытания
BET Surface Area	175 ± 15	m²/g	ISO 9277
DBP Absorption	~190	mL/100g	—
SiO₂ Content (dry basis)	≥96	%	—
Moisture (105°C, 2h)	≤7	%	—
pH (5% suspension)	6.0–7.5	—	—