Registration Dossier
Registration Dossier
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EC number: 614-598-1 | CAS number: 68553-12-8
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- Glycerides, tallow sesqui-, hydrogenated, propoxylated
- Type of composition:
- boundary composition of the substance
- State / form:
- liquid
- Reference substance:
- Glycerides, tallow sesqui-, hydrogenated, propoxylated
- Reference substance:
- Glycerides, tallow sesqui-, hydrogenated, propoxylated
- Name:
- Glycerides, tallow sesqui-, hydrogenated, propoxylated
- Type of composition:
- legal entity composition of the substance
- State / form:
- liquid
- Reference substance:
- Glycerides, tallow sesqui-, hydrogenated, propoxylated
- Reference substance:
- Glycerides, tallow sesqui-, hydrogenated, propoxylated
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Persistence
Based on a reliable study to determine the ready biodegradability for the test substance it was concluded that glycerine monostearate propoxylated can be classified as readily biodegradable. It is concluded that the test substance is unlikely to persist in the environment.
Bioaccumulation
Based on a reliable study the log Pow was experimentally determined to be >6.2. However, in accordance with Chapter R.11 ECHA Guidance even though the Log Pow value is >4.5 at very high low Pow (>6) there is a decreasing relationship between log Pow and bioaccumulation potential, due in part to experimental errors in the determination of BCF values for very hydrophobic substances. In addition, the test substance may be considered readily biodegradable which may lead to relatively low concentrations of the test substance in the aquatic environment and thus to low concentrations in aquatic organisms. It is concluded that the test substance has low potential for bioaccumulation in the aquatic environment.
Toxicity
There is one reliable (Klimisch 1) long-term toxicity study with aquatic algae. The 72 hour NOEC was determined to be 1.1 mg/L.In addition there are three reliable (Klimisch 1) acute freshwater studies are available for three trophic levels; fish, invertebrates and algae. The lowest short-term toxicity EC/LC50 was determined to be 1.1 mg/L to aquatic algae, with EC/LC50s for fish and aquatic invertebrates of 2.0 and 1.4 mg/L, respectively. However, no toxicity was observed at the limit of solubility of the test substance in the aquatic toxicity studies.
The overall conclusion is that the test substance, glycerine monostearate propoxylated, should be considered not PBT or vP/vB.
Referenceopen allclose all
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