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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Toxicological information

Acute Toxicity: inhalation

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Administrative data

Endpoint:
acute toxicity: inhalation
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Meets generally accepted scientific standards, well documented and acceptable for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1970
Report date:
1970

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
The test was performed in principle as described in OECD test guideline 403 - Annex (1981). It demonstrates the toxicity of an atmosphere saturated with vapors of the volatile components of a test substance at 20°C. Young adult laboratory rats, 6 per sex, were exposed sequentially to the vapors generated by bubbling 200 L/h air through a substance column of about 5 cm above a fritted glass disc in a glass cylinder for 8 h. The exposure was subsequently repeated in the same manner. No analytical determination of the atmosphere concentrations was performed. The nominal concentration was calculated as quotient of the amount of test substance weight loss during exposure, and the amount of air used during exposure. Group-wise documentation of clinical signs was performed over a 7-day study period. Body weight of groups was determined before the start of the study and at the end of the observation period.
GLP compliance:
no
Remarks:
GLP was not compulsory at the time the study was conducted
Test type:
other: Inhalation Hazard Test
Limit test:
no

Test material

Constituent 1
Reference substance name:
Ethylhexylchloride
IUPAC Name:
Ethylhexylchloride
Details on test material:
- Name of test material (as cited in study report): Ethylhexylchloride
- Physical state: liquid
- Purity: ca. 98%

Test animals

Species:
rat
Strain:
not specified
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Age at study initiation: young adult
- Body weight at study initiation:
IHT 20°C experiment 1: group weight females 620 g (3 animals), group weight males 755 g (3 animals)
IHT 20°C experiment 2: group weight females 588 g (3 animals), group weight males 680 g (3 animals)
- Diet (e.g. ad libitum): ad libitum
- Water (e.g. ad libitum): ad libitum

Administration / exposure

Route of administration:
inhalation: vapour
Type of inhalation exposure:
whole body
Vehicle:
other: unchanged (no vehicle)
Analytical verification of test atmosphere concentrations:
no
Duration of exposure:
8 h
Remarks on duration:
at 20°C
Concentrations:
No verification of the concentration was performed. Nominal concentration: 11.1 mg/l (= 1820 ppm)
No. of animals per sex per dose:
6
Control animals:
no
Details on study design:
- Duration of observation period following administration: 7 days
- The animals were examined for mortality and clinical signs of toxicity
- Frequency of observations: several times at the application day and thereafter once each working day
- Body weights were recorded group-wise at the beginning and the end of the study
- Necropsy of survivors and animals which died performed: yes

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LC50
Effect level:
> 11.1 mg/L air (nominal)
Based on:
test mat.
Exp. duration:
8 h
Remarks on result:
other: IHT; 20°C; No mortalities observed
Mortality:
No mortalities observed.
Clinical signs:
other: Strong irritation of mucous membranes.
Body weight:
- Body weight at the end of the study:
IHT 20°C experiment 1: group weight females 715 g (3 animals), group weight males 843 g (3 animals)
IHT 20°C experiment 2: group weight females 671 g (3 animals), group weight males 769 g (3 animals)
Gross pathology:
Nothing abnormal detected.

Applicant's summary and conclusion