CG-Si69 (CAS No. 40372-72-3)

No. CG-Si69 silane coupling agent is bis[3-(triethoxysilyl)propyl]tetrasulfide. It is also named as bis - [γ-(triethoxysilyl) propyl] tetrasulfide. Its molecular formula is C18H42O6Si2S4, and structural formula is

Physical Properties of Bis[3-(triethoxysilyl)propyl]tetrasulfide

1. CAS No. : 40372-72-3
2. Molecular Weight: 539
3. Physical Form: Transparent liquid
4. Color: Yellow or light yellow
5. Total Sulfur: 21.7%-23.3%
6. Average Sulfur Chain Length: 3.55-3.82
7. CLPTES Content: ≤ 3.0%
8. EtOH Content: ≤ 0.5%
9. Impurities Before: ≤ 1.0 %
10. Specific Gravity at 20°C: 1.060-1.10
11. Refractive Index (nD, 25°C): 1.460-1.50
12. Chroma: < 6
13. Viscosity (cPa.s): ≤ 14

Applications

Bis[3-(triethoxysilyl)propyl]tetrasulfide has multiple functional groups. It is successfully applied in rubber industry. This product is used to improve modulus and tensile strength of rubber, to reduce compound viscosity and save process energy consumption. This silane coupling agent is especially applicable for polymers with double bond or rubber formulation with hydroxyl fillers. The suitable fillers are silica, silicate and clay, etc. Bis[3-(triethoxysilyl)propyl]tetrasulfide is suitable for many kinds of rubbers such as natural rubber (NR), butadiene styrene rubber (SBR), isoprene rubber (IR), butadiene rubber (BR), acrylonitrile butadiene rubber (NBR) and ethylene propylene diene rubber (EPDM), etc.

Packaging and Storage

Bis[3-(triethoxysilyl)propyl]tetrasulfide is packed in 25KG/200KG drum, IBC or ISO tank.
This product is sealed and stored in cool and well ventilated place away from fire and water.

Disclaimer

The information provided herein was believed by Jiangxi Chenguang New Materials Co., Ltd. to be accurate at the time of preparation or prepared from sources believed to be reliable, but it is the responsibility of the user to investigate and understand other pertinent sources of information, to comply with all laws and procedures applicable to the safe handling and use of the product, and to determine the suitability of the product for user's intended application or use. All products supplied by Chenguang are subject to Chenguang's standard terms and conditions of sale. CHENGUANG MAKES NO WARRANTY, EXPRESS OR IMPLIED, CONCERNING THE PRODUCT OR THE MERCHANTABILITY OR FITNESS THEREOF FOR ANY PURPOSE OR CONCERNING THE ACCURACY OF ANY INFORMATION PROVIDED BY CHENGUANG, except that the product shall conform to Chenguang’s specifications. Nothing contained herein constitutes an offer for the sale of any product.

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