Datasheet

Product name: DOWSIL™ 744 RTV Sealant White
Revision Date: 11.09.2020
Version: 4.0
Page 11 of 15
Acute toxicity to aquatic invertebrates
EC50, Daphnia magna (Water flea), flow-through test, 48 Hour, > 122 mg/l, OECD Test
Guideline 202
Acute toxicity to algae/aquatic plants
ErC50, Pseudokirchneriella subcapitata (green algae), 72 Hour, Growth rate inhibition, > 3.6
mg/l, OECD Test Guideline 201
NOEC, Pseudokirchneriella subcapitata (green algae), 72 Hour, Growth rate inhibition, >= 3.6
mg/l, OECD Test Guideline 201
Toxicity to bacteria
EC10, activated sludge, 3 Hour, Respiration rates., > 100 mg/l, OECD Test Guideline 209
Chronic toxicity to aquatic invertebrates
NOEC, Daphnia magna (Water flea), 28 d, number of offspring, >= 10 mg/l
12.2 Persistence and degradability
Methyltrimethoxysilane
Biodegradability: Based on stringent OECD test guidelines, this material cannot be
considered as readily biodegradable; however, these results do not necessarily mean that the
material is not biodegradable under environmental conditions.
Biodegradation: 54 %
Exposure time: 28 d
Method: Regulation (EC) No. 440/2008, Annex, C.4-A
12.3 Bioaccumulative potential
Methyltrimethoxysilane
Bioaccumulation: Bioconcentration potential is low (BCF < 100 or Log Pow < 3).
Partition coefficient: n-octanol/water(log Pow): -0.82 Estimated.
12.4 Mobility in soil
Methyltrimethoxysilane
No relevant data found.
12.5 Results of PBT and vPvB assessment
Methyltrimethoxysilane
This substance is not considered to be persistent, bioaccumulating and toxic (PBT). This
substance is not considered to be very persistent and very bioaccumulating (vPvB).
12.6 Other adverse effects
Methyltrimethoxysilane
This substance is not on the Montreal Protocol list of substances that deplete the ozone layer.