| Identification | More | [Name]
Bis(triethoxysilylpropyl) disulfide | [CAS]
56706-10-6 | [Synonyms]
BIS[3-(TRIETHOXYSILYL)PROPYL]-DISULFIDE
BIS(TRIETHOXYSILYLPROPYL)DISULFIDE
4,4,13,13-tetraethoxy-3,14-dioxa-8,9-dithia-4,13-disilahexadecane
4,4,,-Tetraethoxy-3,-dioxa-8,9-dithia-4,-disilahexadecan
Bis(3-triethoxysilylpropyl)disulfane
Silane coupler SG-Si996
[Dithiobis(trimethylene)]bis(triethoxysilane)
A-1589
Bis[3-(triethoxysilyl)propyl] perdisulfide
Bis[3-(triethoxysilyl)propyl] persulfide
Y-15026 | [EINECS(EC#)]
260-350-7 | [Molecular Formula]
C18H42O6S2Si2 | [MDL Number]
MFCD05663903 | [Molecular Weight]
474.82 | [MOL File]
56706-10-6.mol |
| Chemical Properties | Back Directory | [Appearance]
Yellowish clear liquid | [Melting point ]
°C | [Boiling point ]
250 | [density ]
1.03 | [vapor pressure ]
0-7910Pa at 20-25℃ | [refractive index ]
1.457 | [Fp ]
75°C | [storage temp. ]
Sealed in dry,2-8°C | [Specific Gravity]
1.03 | [Water Solubility ]
14-1000000000μg/L at 20℃ | [Hydrolytic Sensitivity]
7: reacts slowly with moisture/water | [InChI]
InChI=1S/C18H42O6S2Si2/c1-7-19-27(20-8-2,21-9-3)17-13-15-25-26-16-14-18-28(22-10-4,23-11-5)24-12-6/h7-18H2,1-6H3 | [InChIKey]
FBBATURSCRIBHN-UHFFFAOYSA-N | [SMILES]
CCO[Si](OCC)(OCC)CCCSSCCC[Si](OCC)(OCC)OCC | [LogP]
-3-5.2 at 20℃ | [CAS DataBase Reference]
56706-10-6(CAS DataBase Reference) | [EPA Substance Registry System]
56706-10-6(EPA Substance) |
| Safety Data | Back Directory | [Risk Statements ]
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . | [TSCA ]
Yes |
| Hazard Information | Back Directory | [Chemical Properties]
Yellowish clear liquid | [Flammability and Explosibility]
Notclassified | [Synthesis]
General procedure for the synthesis of (3-mercaptopropyl)triethoxysilane (MPTES), compounds (CAS:60764-86-5) and bis-[3-(triethoxysilyl)propyl]-disulfide (TESPD) from 3-chloropropyltriethoxysilane (CPTES): during the reaction, 50 wt.% NaHSO4 was added drop-wise to a NaHS solution solution. 325 g (2.69 mol) of NaHS solution with 8.2 g (0.0124 mol) of tetrabutylammonium bromide (TBAB) solution were added to a glass reactor, mixed well and heated to 75 °C. Subsequently, NaHSO4 solution was added slowly and dropwise just before the imminent addition. Next, CPTES was added. 497.8 g (2.07 moles) of CPTES was added to the reaction mixture within 8 min. the addition of NaHSO4 solution needed to be completed within 30 min. After 5 hours of reaction, the organic phase was separated and analyzed by gas chromatography (GC). The analysis showed that the product contained 2.0% wt. of CPTES, 87.6% wt. of MPTES, 2.7% wt. of TESPM, and 0.7% wt. of TESPD.Finally, the product was distilled under vacuum to yield MPTES with a purity of 95.4%, which is about 84% yield based on the amount of CPTES used. | [References]
[1] Patent: US6680398, 2004, B1. Location in patent: Page column 10-11
[2] Patent: US6680398, 2004, B1. Location in patent: Page column 8-9
[3] Patent: US6680398, 2004, B1. Location in patent: Page column 10
[4] Patent: US6680398, 2004, B1. Location in patent: Page column 9-10
[5] Patent: US6680398, 2004, B1. Location in patent: Page column 9 |
| Questions And Answer | Back Directory | [Application]
Footwear
- Abrasion resistance
- Cutting and chunking resistance
- Flex life improvement
Rolls
- Abrasion resistance
- Aging resistance
- Processing- Set reduction (better load bearing)
- Reduced water swell
- Lower hysteresis
Mechanical Molded Goods
- Increased modulus
- Better heat aging
- Compression set reduction
- Dynamic property improvement
- Reduced swell to polar liquids
- Filler substitution (non-black for black)
Hose
- Improved abrasion on cover
- Better heat aging
- Increased modulus
- Lower compression set
- Improved adhesion to reinforcing elements
Solid Tires
- Improved abrasion
- Lower hysteresis
- Higher modulus
- Improved processing
- Possibly better adhesion
Tires
- Treads for abrasion, hot tear
- Carcass for adhesion and/or filler substitution
- Breaker (belt) stocks for adhesion
Belts
Flat Belts
- Increased abrasion
- Improved reversion resistance
- Reduced cost with clay substitution for black
- Improved cord adhesion
- Increased flex life and modulus
V Belts
- Increased modulus
- Improved abrasion
- Longer flex life
- Improved adhesion to reinforcing elements
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