Name: ZEMSIL PS-175
Brand: ZEMSIL

Question 1

What is ZEMSIL PS-175?

Accepted Answer

ZEMSIL PS-175 (Precipitated Silica (Highly Dispersible), CAS 7631-86-9) is a ZEMSIL® silicone material. ZEMSIL PS-175 is a highly dispersible (HD) precipitated silica targeting UHP and EV tire applications, equivalent to Zeosil Premium 200MP and Ultrasil 7000GR. Near-unity CTAB/BET ratio enables maximum coupling efficiency with silane agents. Provides lowest hysteresis at equivalent reinforcement.

Question 2

What is ZEMSIL PS-175 equivalent to?

Accepted Answer

ZEMSIL PS-175 is equivalent to Zeosil Premium 200MP, Ultrasil 7000GR and can be used as a direct drop-in replacement in most formulations.

Question 3

What are the main applications of ZEMSIL PS-175?

Accepted Answer

ZEMSIL PS-175 is used in: UHP Tires, EV Tires, Premium Rubber Goods.

Question 4

What are the key specifications of ZEMSIL PS-175?

Accepted Answer

BET Surface Area: 175 ± 15 m²/g; CTAB Surface Area: ~170 m²/g; SiO₂ Content (dry basis): ≥96 %; Dispersibility Index: ≥95 %; Moisture (105°C, 2h): ≤7 %; pH (5% suspension): 6.5–7.5

Question 5

What is the CAS number of ZEMSIL PS-175?

Accepted Answer

The CAS number of ZEMSIL PS-175 (Precipitated Silica (Highly Dispersible)) is 7631-86-9.

ZEMSIL PS-175

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항목	값	단위	시험 방법
BET Surface Area	175 ± 15	m²/g	ISO 9277
CTAB Surface Area	~170	m²/g	—
SiO₂ Content (dry basis)	≥96	%	—
Dispersibility Index	≥95	%	—
Moisture (105°C, 2h)	≤7	%	—
pH (5% suspension)	6.5–7.5	—	—