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Diss Factsheets

Toxicological information

Acute Toxicity: dermal

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Administrative data

Endpoint:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
key study
Study period:
26 April to 13 May, 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report date:
2010

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method B.3 (Acute Toxicity (Dermal))
Deviations:
no
GLP compliance:
yes
Test type:
fixed dose procedure
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Ammonium chloride
EC Number:
235-186-4
EC Name:
Ammonium chloride
Cas Number:
12125-02-9
Molecular formula:
ClH4N
IUPAC Name:
ammonium chloride

Test animals

Species:
rat
Strain:
Wistar
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: VELAZ s.r.o, Kolec u Kladna, Czech Republic
- Weight at study initiation: males: 267 - 291 g; females: 167 - 204 g
- Fasting period before study :no
- Housing: individually in plastic cage
- Diet: ad libitum
- Water: ad libitum
- Acclimation period: at least 5 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 ± 3
- Humidity (%): 30 - 70
- Photoperiod (hrs dark / hrs light): 12/12

IN-LIFE DATES: From: 26 April 2010 To: 13 May 2010

Administration / exposure

Type of coverage:
semiocclusive
Vehicle:
unchanged (no vehicle)
Details on dermal exposure:
TEST SITE
- Area of exposure: 6 x 6 cm
- % coverage: 10 % of the body surface
- Type of wrap if used: application site covered by mull and held in place by plaster (strapping)

REMOVAL OF TEST SUBSTANCE
- Washing: yes
- Time after start of exposure: 24 hours

TEST MATERIAL
- Amount applied: 2000 mg/kg body weight
- For solids, paste formed: no

Duration of exposure:
24 hours
Doses:
2000 mg/kg body weight
No. of animals per sex per dose:
5
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: daily observations, weighing before application and on days 8 and 15
- Necropsy of survivors performed: yes
- Other examinations performed: macroscopic abnormalities at necropsy
Statistics:
no

Results and discussion

Preliminary study:
A preliminary study was performed with 1 male and 1 female at 2000 mg/kg body weight. Slight irritation of treated skin in the female on days 2-4 after application.
Effect levels
Key result
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Based on:
test mat.
Mortality:
none
Clinical signs:
other: Slight irritation of treated skin in 1 female on days 2-4 after application was observed.
Gross pathology:
No macroscopic abnormalities.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met