2-aminoethanol

Short-term toxicity to aquatic invertebrates

Administrative data

Endpoint:

short-term toxicity to aquatic invertebrates

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: GLP guideline study including analytical monitoring

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1997

Report date:

1997

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method C.2 (Acute Toxicity for Daphnia)

Version / remarks:

Cited as Directive 84/449/EEC, C.2 (Acute toxicity for Daphnia)

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

2-aminoethanol

EC Number:

205-483-3

EC Name:

2-aminoethanol

Cas Number:

141-43-5

Molecular formula:

C2H7NO

IUPAC Name:

2-aminoethanol

Details on test material:

- Name of test material (as cited in study report): Monoethanolamin
- Analytical purity: 99.9%

Sampling and analysis

Analytical monitoring:

yes

Test organisms

Test organisms (species):

Daphnia magna

Study design

Test type:

static

Water media type:

freshwater

Limit test:

no

Total exposure duration:

48 h

Test conditions

Test temperature:

20 ± 1 °C

Nominal and measured concentrations:

Analytic concentrations measured at 0, 24, 48 and 72 hours for vessels
containing nominal concentrations of 3, 10, 30, 100, 300 and 1000 mg/l
were 2.7-4.6, 9.6-10.8, 26.9-28.0, 101-109, 306-322 and 956-1118 mg/l,
respectively.

Details on test conditions:

TEST SYSTEM
- Test vessel: 1 liter glass beaker
- fill volume: 10 ml
- No. of organisms per vessel: 5
- No. of vessels per concentration (replicates): 4
- No. of vessels per control (replicates): 4

TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water:The water used in the study was VE-water. It contained 294 mg/l CaCl2 x
2H2O, 123 mg/l MgSO4 x 7H2O, 65 mg/l NaHCO3 and 6 mg/l KCl. No other information about water quality was mentioned.

EFFECT PARAMETERS MEASURED (with observation intervals if applicable) : Immobility was determined at 24 and 48 hours.

Reference substance (positive control):

yes

Remarks:

potassium dicromate

Results and discussion

Effect concentrations

Effect concentrations 1

Duration:

48 h

Dose descriptor:

EC0

Effect conc.:

ca. 50 mg/L

Nominal / measured:

nominal

Conc. based on:

test mat.

Basis for effect:

mobility

Effect concentrations 2

Duration:

48 h

Dose descriptor:

EC50

Effect conc.:

65 mg/L

Nominal / measured:

nominal

Conc. based on:

test mat.

Basis for effect:

mobility

Effect concentrations 3

Duration:

48 h

Dose descriptor:

EC100

Effect conc.:

> 100 mg/L

Nominal / measured:

nominal

Conc. based on:

test mat.

Basis for effect:

mobility