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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
additional toxicological information
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
1959
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
abstract
Remarks:
Only very old public available literature without GLP and limited information.

Data source

Reference
Reference Type:
publication
Title:
Studies on the Calcium-cyanamide Poisoning. IV. Histopathological Studies on the Tissues of the Rabbit Poisoned due to Calcium-Cyanamide
Author:
Murakami, H.
Year:
1959
Bibliographic source:
Unknown Japanese Journal 28, 281-283 (1959)

Materials and methods

Type of study / information:
Histopathological examination of the rabbit after acute poisoning with calcium cyanamide.
Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Histopathological examination of the rabbit after acute poisoning with calcium cyanamide.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Calcium cyanamide
EC Number:
205-861-8
EC Name:
Calcium cyanamide
Cas Number:
156-62-7
Molecular formula:
CN2.Ca
IUPAC Name:
calcium cyanoazanediide
impurity 1
Chemical structure
Reference substance name:
Calcium oxide
EC Number:
215-138-9
EC Name:
Calcium oxide
Cas Number:
1305-78-8
Molecular formula:
CaO
IUPAC Name:
oxocalcium
impurity 2
Chemical structure
Reference substance name:
Carbon
EC Number:
231-153-3
EC Name:
Carbon
Cas Number:
7440-44-0
Molecular formula:
C
IUPAC Name:
carbon
impurity 3
Reference substance name:
Hematite (Fe2O3)
EC Number:
215-275-4
EC Name:
Hematite (Fe2O3)
Cas Number:
1317-60-8
Molecular formula:
Fe2O3
IUPAC Name:
diiron oxide
impurity 4
Chemical structure
Reference substance name:
Urea
EC Number:
200-315-5
EC Name:
Urea
Cas Number:
57-13-6
Molecular formula:
CH4N2O
IUPAC Name:
urea
impurity 5
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
Cas Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
dioxosilane
impurity 6
Chemical structure
Reference substance name:
Trisilicon tetranitride
EC Number:
234-796-8
EC Name:
Trisilicon tetranitride
Cas Number:
12033-89-5
Molecular formula:
N4Si3
IUPAC Name:
trisilicon tetranitride
impurity 7
Chemical structure
Reference substance name:
Calcium dihydroxide
EC Number:
215-137-3
EC Name:
Calcium dihydroxide
Cas Number:
1305-62-0
Molecular formula:
CaH2O2
IUPAC Name:
calcium dihydroxide
impurity 8
Chemical structure
Reference substance name:
Aluminium oxide
EC Number:
215-691-6
EC Name:
Aluminium oxide
Cas Number:
1344-28-1
Molecular formula:
Al2O3
IUPAC Name:
aluminium oxide
impurity 9
Chemical structure
Reference substance name:
Cyanoguanidine
EC Number:
207-312-8
EC Name:
Cyanoguanidine
Cas Number:
461-58-5
Molecular formula:
C2H4N4
IUPAC Name:
2-cyanoguanidine
impurity 10
Chemical structure
Reference substance name:
Calcium acetylide
EC Number:
200-848-3
EC Name:
Calcium acetylide
Cas Number:
75-20-7
Molecular formula:
C2Ca
IUPAC Name:
calcium ethynediide
impurity 11
Reference substance name:
unknown
IUPAC Name:
unknown
Test material form:
solid: particulate/powder
Details on test material:
Kalkstickstoff (calcium cyanamide, technical grade)

Results and discussion

Any other information on results incl. tables

The histopathological findings in various tissues of the rabbit were as follows:

- In the liver, the cell infiltration was found in the Glisson's capsule and the Kupffer`s cells were proliferous and hypertrophic, but the liver cells remained at almost the normal condition.

- The mucous membrane of the stomach exhibited the diffuse necrosis

- The findings in the brain, heart, lung, spleen and kidney were normal

Considering the results, it can be concluded that the liver is an organ easily damageable due to the calcium cyanamide.

Applicant's summary and conclusion

Conclusions:
Considering the results, it can be concluded that the liver is an organ easily damageable due to the calcium cyanamide.
Executive summary:

A male rabbit was twice administered into the stomach with 2 g of calcium cyanamide.

The histopathological findings in various tissues of the rabbit were as follows:

- In the liver, the cell infiltration was found in the Glisson's capsule and the Kupffer`s cells were proliferous and hypertrophic, but the liver cells remained at almost the normal condition.

- The mucous membrane of the stomach exhibited the diffuse necrosis

- The findings in the brain, heart, lung, spleen and kidney were normal

Considering the results, it can be concluded that the liver is an organ easily damageable due to the calcium cyanamide.