Question 1

What is CGA-325 1,1,1,3,5,5,5-Heptamethyltrisiloxane (Bis(trimethylsiloxy)methylsilane) used for?

Accepted Answer

CGA-325 (1,1,1,3,5,5,5-Heptamethyltrisiloxane (Bis(trimethylsiloxy)methylsilane) (CAS 1873-88-7)) is a silane coupling agent supplied by HOCON INTERNATIONAL. It is used in applications such as electronics & electrical, coatings, inks & chemicals. Refer to the TDS on this page for detailed application guidance.

Question 2

What are the key specifications of CGA-325?

Accepted Answer

CGA-325 1,1,1,3,5,5,5-Heptamethyltrisiloxane (Bis(trimethylsiloxy)methylsilane) (CAS 1873-88-7) (C7H22O2Si3) is manufactured by HOCON INTERNATIONAL to consistent quality standards. Full technical specifications — purity, appearance, density, refractive index, viscosity and storage conditions — are listed in the downloadable TDS on this product page.

Question 3

Does HOCON provide TDS and MSDS for CGA-325?

Accepted Answer

Yes. The TDS (Technical Data Sheet) and MSDS/SDS (Safety Data Sheet) for CGA-325 are available for download directly on this page in multiple languages (English, Chinese, Spanish, Japanese, Korean, Russian). Visit the Quality page for the full document library.

Question 4

What is the minimum order quantity (MOQ) for CGA-325?

Accepted Answer

MOQ for CGA-325 is negotiable. Standard packaging options include 200 kg drum, 1000 kg IBC; IBC totes and ISO tank containers are available for bulk orders. Sample quantities are available for qualification testing. Contact HOCON at sales@hoconsi.com or via the RFQ form for a quote.

Question 5

How should CGA-325 be stored and what is its shelf life?

Accepted Answer

CGA-325 should be stored in a cool, dry, well-ventilated area away from heat sources and incompatible materials, in tightly sealed original containers. Typical shelf life is 12–24 months from the date of manufacture when stored under recommended conditions. Refer to the MSDS/SDS for full storage and handling requirements.

Марка	CGA-325
Номер CAS	1873-88-7
EINECS	217-496-1
Молекулярная формула	C7H22O2Si3
Категория	Силановые аппреты — Силоксановые интермедиаты

Внешний вид	Прозрачная жидкость
Чистота / содержание	≥ 99%
Молекулярная масса	222.51
Температура кипения	142°C
Температура вспышки	22°C
Плотность	0.819 g/mL (25°C)
Показатель преломления	1.382 (20°C)
Рекомендуемая дозировка	As required (silicone synthesis)

CGA-325 — 1,1,1,3,5,5,5-Heptamethyltrisiloxane (Bis(trimethylsiloxy)methylsilane)

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