trimethoxyethoxyvinylsilane GPS Safety Summary - Evonik ...

Technical information 

GPS Safety Summary 

Trimethoxyethoxyvinylsilane 

Substance name 

Trimethoxyethoxyvinylsilane 

CAS-No. 1067-53-4 

General statement 

Trimethoxyethoxyvinylsilane is primary used as chemical intermediate and as 

adhesion promoter in coatings. 

Trimethoxyethoxyvinylsilane is suspected to damage fertility or the unborn 

child. 

Trimethoxyethoxyvinylsilane is not recommended for consumer use. 

Trimethoxyethoxyvinylsilane should not enter surface water and soil. If the 

risk recommendations are considered, which are mentioned under RISK 

MANAGEMENT RECOMMENDATIONS, the substance can be handled safely. 

Chemical identity 

Chemical name (IUPAC) Trimethoxyethoxyvinylsilane 

Brand names 

Dynasylan® VTMOEO 

CAS number 1067-53-4 

Molecular formula 

C11H24O6Si 

Molecular weight 280 

Structure 

(CH3O-C2H4O)3Si-CH=CH2 

Chemical characterization Vinylalkoxysilane 

Synonyms 

Tris(2-methoxyethoxy)vinylsilane 

Evonik Industries I 

AG | GPS Safety Summary | November 2010 | Version 1 | page 1/6

Uses and application 

Trimethoxyethoxyvinylsilane is used as a monomer in the production of 

silicone polymers or, more likely, silicone resins usually in combination with 

other organochloro- or organoalkoxy-silane monomers. 

The substance is used as a coupling agent (or adhesion promoter) to 

enhance or reinforce bonding between a polymer matrix and a filler in rubber 

and plastic manufacture. 

Trimethoxyethoxyvinylsilane is used as cross-linking agent and adhesion 

promoter in silicone sealant products for professionals. 

Physical/chemical properies 

Trimethoxyethoxyvinylsilane is a liquid at standard temperature and 

pressure. The substance is not classified as flammable on the basis of a flash 

point of 115°C. It self-ignites at 210°C, is not explosive and is not oxidizing. 

Property 

Value 

Physical state 

Liquid 

Color 

Colorless 

Density 1.03 g/cm 3 at 25 °C 

Melting / Boiling point -130°C at 1013 hPa / 285°C at 1013 

hPa 

Explosive Properties 

No explosive properties 

Self-ignition temperature 210°C at 1013 hPa 

Vapor pressure 0.43 Pa at 25°C 

Water solubility 

71g/l at 20°C, decomposition by 

hydrolysis 

Flash point 

115°C at 1013 hPa 

Octanol-water partition 0.3 at 20°C 

coefficient 

Viscosity 2.3 mPa s at 25°C 



Health effects 

Trimethoxyethoxyvinylsilane is not harmful or toxic after single oral 

ingestion of high concentrations or single dermal contact. The substance is 

not irritating to skin and eyes and not a skin sensitizer. The available data do 

not support classification for toxicity after repeated intake of low 

concentration. Based on the available results Trimethoxyethoxyvinylsilane 

has not shown mutagenic or genotoxic effects and there is no evidence for 

carcinogenicity. 2-Methoxyethanol can be released from the substance. 2- 

Methoxyethanol is known to be toxic for reproduction in animals. 

Health effects 

Effect Assessment 

Acute toxicity (oral, dermal 

and inhalation) 

Eye / Skin irritation 

Sensitization 

Toxicity after repeated 

exposure 

Genotoxicity / mutagenicity 

Carcinogenicity 

Toxicity for reproduction 

Result 

not harmful or toxic 

not irritating 

not sensitizing 

Not toxic 

No mutagenic / genotoxic effects 

There is no evidence of carcinogenicity 

evidence of reproduction toxicity in 

animals 

Environmental effects 

Trimethoxyethoxyvinylsilane needs not to be classified as harmful or toxic to 

aquatic organisms. The substance is partial biodegradable and hydrolyzes 

very fast. Based on the bioaccumulation assessment (hydrolysis) and toxicity 

assessment (not classified for long-term human health effects or for aquatic 

toxicity) the substance does not meet the criteria for PBT or vPvB. 

Environmental effects 

Effect Assessment 

Aquatic toxicity 

Fate and Behavior 

Biodegradation 

Bioaccumulation potential 

PBT / vPvB conclusion 

Result 

Low toxicity to water organisms 

Result 

Partial biodegradable 

Not bioaccumulative 

Not considered to be either PBT nor 

vPvB 



Exposure 

Human / Environment 

There is no exposure to humans from Trimethoxyethoxyvinylsilane via the 

environment, as the substance is highly reactive and, thus, immediately 

hydrolyzes. Manufacturing occurs under controlled conditions, with releases 

to air and waste water according to the existing legal and regional 

permissions. Releases to the environment during use and handling are 

limited by use of appropriate measures as mentioned in the Safety Data 

Sheet and described under Risk Management Recommendations. Due to the 

reactive nature of Trimethoxyethoxyvinylsilane when in contact with water, or 

indeed with silanols, under the conditions used to prepare silicone polymers 

and resins, it can be assumed that they are completely consumed in the 

hydrolysis/condensation process, 

In those cases where Trimethoxyethoxyvinylsilane in sealants is used in 

professional applications, the Silane has invariably hydrolyzed and 

condensed to form Siloxane oligomers and polymers and there is no 

exposure from the end product. 

Risk management recommendations 

Description 

General measures 

Specific Human Health risk 

management measures 

Specific Environment risk 

management measures 

Production and on site 

(i) Procedural and 

(i) Local Exhaust ventilation (LEV) 

(i) Use of air emission 

use (site specific) 

technological control using 

(ii) Personal Protective Equipment 

abatement equipments such 

Best Available Technique 

(PPE): Fluorinated or nitrile rubber 

as incinerators and scrubbers 

(BAT) 

gloves/gauntlets and protective 

(ii) Treatment of effluent in 

clothing 

biological waste water 

(iii) Specific workers’ training 

treatment plant 

(iii) Incineration of waste 

Intermediate, use as 


(i) Local Exhaust ventilation (LEV) 

(i) Treatment of effluent in 

monomer, non-metal 


(ii) Personal Protective Equipment 

waste water treatment plant 

surface treatment, non- 


(PPE): Fluorinated or nitrile rubber 

(WWTP) 

aqueous polymer 

(BAT) 

gloves/ gauntlets and protective 

preparation. Use in 

clothing; 

rubber and plastics 

Suitable respiratory 

protective equipment should 

be worn if duration of 

exposure is greater than 15 min 

(iii) Workers’ training 

Industrial use of sealants 


(i) Butyl, nitrile, or neoprene 

(i) Treatment of effluent in 


gloves / gauntlets and protective 

waste water treatment plant 


clothing; 

(WWTP). 

(BAT) 

(ii) Workers’ training 

Professional use of 

N/A 

(i) maximum product 

(i) Standard municipal WWTP 

sealants 

concentration of 0.4%; (ii) Butyl, 

nitrile, or neoprene gloves 

recommended 



State agency review 

• EU-GHS Regulation (EU) No. 1272/2008 

• EU-Risk Assessment (Regulation 793/93) 

• EU REACH registration 2010 

• OECD SIDS Program 

Regulatory information/classification and labelling 

GHS-Labelling 

Statutory basis EU-GHS as per Regulation (EU) No. 1272/2008 

Symbol(s) 

Signal word 

Warning 

H361: Suspected of damaging fertility or the unborn 

child (H361f). 

Precaution statements and more information about Trimethoxyethoxyvinylsilane 

can be found in the Safety Data Sheet. 



This GPS Safety Summary is based on Evonik´s present knowledge and experience as of the date of 

issue. However, it implies no liability or other legal responsibility on the part of Evonik, including 

with regards to existing third party intellectual property rights, especially patent rights. In no event 

shall Evonik be responsible for damages of any nature whatsoever resulting from the use of or 

reliance upon the information herein or the chemical to which that information refers. In particular, 

no warranty, whether express or implied, or guarantee in the legal sense is intended or implied by 

Evonik. 

This GPS Safety Summary is only intended to provide general information about the chemical 

referred to herein but not any in-depth health and safety information. The information in this GPS 

Safety Summary is supplied on the condition that the persons receiving the same will make their 

own determination as to its suitability for their purposes prior to use. This GPS Safety Summary 

does not supersede or replace required regulatory and/or legal communication documents. 

Performance of the chemical described herein should be verified by testing which should be carried 

out only by qualified experts. 

Evonik reserves the right to make any changes to this GPS Safety Summary in accordance with 

technological progress or further developments. Reference to trade names used by other 

companies is neither a recommendation, nor does it imply, that similar products could not be used. 

Glossary 

Acute toxicity 

Biodegradable 

Bioaccumulation 

Carcinogenicity 

Chronic toxicity 

GHS 

Mutagenicity 

PBT 

Reprotoxicity 

Sensitizing 

Teratogenic 

vPvB 

harmful effects after a single exposure 

breakdown of materials by a physiological environment 

accumulation of substances in the environment 

effects causing cancer 

harmful effects after repeated exposures 

Global Harmonized System on Classification and Labelling 

effects that change genes 

Persistent Bioaccumulative Toxic 

teratogenicity, embryotoxicity and harmful effects on fertility 

allergenic 

effects on foetal morphology 

very Persistent very Bioaccumulative 

Contact information within company 

Email address : 

sds-im@evonik.com 

Emergency Telephone number: +49 (0)7623 91-9191

trimethoxyethoxyvinylsilane GPS Safety Summary - Evonik ...

Create successful ePaper yourself

Delete template?

Save as template?