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3-Mercaptopropyltriethoxysilane

Basic information Introduction Safety Supplier Related

3-Mercaptopropyltriethoxysilane Basic information

Product Name:
3-Mercaptopropyltriethoxysilane
Synonyms:
  • (3-mercaptopropyl)triethoxy-silan
  • 3-(triethoxysilyl)-1-propanethio
  • 3-(triethoxysilyl)-propanethio
  • 3-(triethoxysilyl)propylmercaptan
  • GAMMA-MERCAPTOPROPYLTRIETHOXYSILANE
  • kh590
  • triethoxy(3-mercaptopropyl)silane
  • 1-Propanethiol, 3-(triethoxysilyl)-
CAS:
14814-09-6
MF:
C9H22O3SSi
MW:
238.42
EINECS:
238-883-1
Product Categories:
  • Adhesion Promoters
  • Coupling Agents
  • Chloroalkylsilanes, etc. (Silane Coupling Agents)
  • Functional Materials
  • Mecapto Silanes
  • Surface Modifiers
  • Industrial/Fine Chemicals
  • Mercapto
  • Si (Classes of Silicon Compounds)
  • Silane Coupling Agents
  • Si-O Compounds
  • Trialkoxysilanes
Mol File:
14814-09-6.mol
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3-Mercaptopropyltriethoxysilane Chemical Properties

Boiling point:
210 °C
Density 
0.987 g/mL at 20 °C (lit.)
vapor pressure 
0-7910Pa at 25℃
refractive index 
1.4331
Flash point:
88°C
storage temp. 
2-8°C
form 
clear liquid
pka
10.39±0.10(Predicted)
color 
Colorless to Almost colorless
Specific Gravity
0.932
Water Solubility 
Hydrolyzes slowly in water.
Sensitive 
Moisture Sensitive
Hydrolytic Sensitivity
7: reacts slowly with moisture/water
BRN 
2039575
LogP
-1.4-2.7 at 20℃
CAS DataBase Reference
14814-09-6(CAS DataBase Reference)
EPA Substance Registry System
1-Propanethiol, 3-(triethoxysilyl)- (14814-09-6)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
RIDADR 
UN 3334
WGK Germany 
3
RTECS 
TZ7760000
10-13
TSCA 
Yes
PackingGroup 
III
HS Code 
29309090

MSDS

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3-Mercaptopropyltriethoxysilane Usage And Synthesis

Introduction

3-Mercaptopropyltriethoxysilane is a bifunctional organosilane possessing a reactive organic mercapto and a hydrolyzable inorganic methoxysilyl group. 3-Mercaptopropyltriethoxysilane is a clear, colorless to light yellow liquid with a slightly mercaptan odor. It is soluble in alcohols, ketones and aliphatic or aromatic hydrocarbons.

Applications:

  • 3-Mercaptopropyltriethoxysilane can be used as coupling agent to improve the adhesion of sulfur cured elastomers (polysulfide, polyurethane sealants) to inorganic fillers (such as silica, clay, glass, mica and talc etc.), fiberglass and surfaces. Mineral-reinforced articles such as shoe soles, rubber rollers and wheels, white sidewalls, and wire and cable insulation also can be produced with lower silane loadings.
  • Used to improve properties of mineral filled elastomer, including modulus, tensile and tear strength, heat buildup, abrasion resistance, resilience, compression set and cure time.
  • Used as a pretreatment on minerals or added at the time of compounding.
  • Used to improve low-rolling resistance in silica-reinforced tire tread compounds.

Chemical Properties

Clear to straw liquid with unpleasant odor of sulfide.

Uses

It can improve the properties of the mineral-filled elastomer, including modulus, tensile and tear strength, heat buildup, abrasion resistance, resilience. It can be used as a pretreatment on minerals or added at the time of compounding. Mineral-reinforced rubbers such as shoe soles, rollers, wheels, white sidewalls, wire and cable insulation are the common case (3-Mercaptopropyl)triethoxysilane, could be used in. It also finds it uses as an intermediate, in polymer and tire manufacture, and as a laboratory reagent.

Flammability and Explosibility

Not classified

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