Bis[3-(triethoxysilyl)propyl]tetrasulfide

Synonym(s):3,3′-Tetrathiobis(propyl-triethoxysilane);TESPTS

CAS NO.：40372-72-3
Empirical Formula: C18H42O6S4Si2
Molecular Weight: 538.95
MDL number: MFCD00053751
EINECS: 254-896-5
SAFETY DATA SHEET (SDS)
Update Date: 2024-10-30 18:52:02

Bis[3-(triethoxysilyl)propyl]tetrasulfide Structural

What is Bis[3-(triethoxysilyl)propyl]tetrasulfide?

Chemical properties

Yellowish clear liquid

The Uses of Bis[3-(triethoxysilyl)propyl]tetrasulfide

Bis[3-(triethoxysilyl)propyl]tetrasulfide is used in radial tires, rubber tire treads, carcass, tire walls, solid rubber tires and other rubber products. It acts as a chemical intermediate and as a cross linking agent. Furthermore, it acts as a coupling agent used to chemically modify silica surface. In addition, it serves as a curing agent for good heat aging.

The Uses of Bis[3-(triethoxysilyl)propyl]tetrasulfide

Bis[3-(triethoxysilyl)propyl] tetrasulfide (TESPTS) is generally used as a crosslinking agent and reinforcing filler in the manufacturing of rubber. TESPT film provides corrosion protection to the metallic substrates. It is also used as a precursor in the synthesis of mesoporous organosilicas.

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

Boiling point:	250 °C
Density	1.08 g/mL at 20 °C(lit.)
refractive index	n20/D 1.49
Flash point:	91°C
form	Liquid
Specific Gravity	1.095
Water Solubility	Miscible with toluene, primary alcohols, ketones, benzene, chlorinated hydrocarbons, acetonitrile, dimethylformaminde and dimethysulfoxide. Immiscible with water.
Hydrolytic Sensitivity	7: reacts slowly with moisture/water
BRN	2062235
CAS DataBase Reference	40372-72-3(CAS DataBase Reference)
EPA Substance Registry System	3,16-Dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane, 4,4,15,15-tetraethoxy- (40372-72-3)

Safety information for Bis[3-(triethoxysilyl)propyl]tetrasulfide

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection.