Acetamide, N,N'-(ethenylmethylsilylene)bis[N-ethyl-

Oxidising properties

Administrative data

Endpoint:

oxidising liquids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2011/02/11 - 2011/07/11

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2012

Report date:

2012

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method A.21 (Oxidising Properties (Liquids))

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

N-[ethenyl(N-ethylacetamido)methylsilyl]-N-ethylacetamide

EC Number:

643-078-7

Cas Number:

87855-59-2

Molecular formula:

C11 H22 N2 O2 Si Si(CH3)(CH=CH2)[N(CH2CH3)(C(=O)CH3)]2

IUPAC Name:

N-[ethenyl(N-ethylacetamido)methylsilyl]-N-ethylacetamide

Test material form:

liquid: viscous

Details on test material:

Test item
Product name:ZMAT Number 4094 103 (supplied as Dow Coming:!> 1-6008 Silane)
Physical Fonn: Liq uid
Color: Amber to brown
Odor: Amine- like odor
Lot number: 091217
Storage: keep container closed in a room temperature (15-25°C)
All the information above is supplied by Dow Corning Corp.

Results and discussion

Test results (Oxidising liquids)

Test results (Oxidising liquids) 1

Sample tested:

reference mixture (not specified)

Remarks:

migrated information

Parameter:

mean pressure rise time

Result:

ca. 5.54 s

Test results (Oxidising liquids) 2

Sample tested:

test mixture (not specified)

Remarks:

migrated information

Parameter:

mean pressure rise time

Result:

ca. 24.1 s

Remarks on result:

other: the bursting disk didn 't rupture for three times during the five trials

Applicant's summary and conclusion

Interpretation of results:

other: no oxidising properties

Remarks:

Migrated information

Conclusions:

According to the lest results of the test item, the bursting disk didn 't rupture for three times
during the five trials, the mean pressure rise time from 690 kpa to 2070 kpa of the two times was
24. 11 s, far greater than the mean pressure rise time of reference substance 5.54 s, so the test item
was not to be considered as an oxidizer.

Executive summary:

 The purpose of the study was to determine the potential for ultimate biodegradation of methylvinylbis(n-ethylacetamido)silane (Supplied as Dow Corning (R) 1-6008) in water. The test was conducted from May 7 to June 5, 2010. The mean cumulative net percent CO2 evolved (percent biodegradation) fro the aqueous medium fortified with methylvinylbis(n-ethylacetamido)silane at 10 mg C/L was 62.66% on Day 28. The toxicity control on Day 14 was 70.33% which indicates that the test substance was not toxic to the inoculum in the test medium. The cumulative net percent CO2 evolved from the sodium benzoate procedural control was 82.78% of theoretical by day 10, thus exceedin the "pass" criteria of the test (reaching 60% or greater CO2 evolution within a 10-day window of reaching 10% biodegradation). This rapid biodegradation of sodium benzoate confirmed the presence of an active microbial population and system integrity. Based on the rate of CO2 evolution during the study, methylvinylbis(n-ethylacetamido)silane can not be classified as "readily biodegradable" by the criteria above since it did not achieve 60% biodegradation within a 10-day sindow of reaching 10% biodegradation. However, methylvinylbis(n-ethylacetamido)silane was extensively mineralized to CO2 (i.e., 62.66% by Day 28) and therefore can be classified as "ultimately biodegradable".