Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
hydrolysis
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 111 (Hydrolysis as a Function of pH)
Deviations:
yes
Remarks:
see free text
Principles of method if other than guideline:
Additional pH value: pH 1.2 @ 40°C
Additional samples form all pH t= 30 min after mixing Butylchlorotin dihydroxide with buffer solutions
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Butylchlorodihydroxystannane
EC Number:
236-406-1
EC Name:
Butylchlorodihydroxystannane
Cas Number:
13355-96-9
Molecular formula:
C4H11ClO2Sn
IUPAC Name:
butylchlorodihydroxystannane
Test material form:
solid: granular
Radiolabelling:
no

Study design

Analytical monitoring:
yes
Duration of testopen allclose all
Duration:
30 min
pH:
1.2
Temp.:
40 °C
Initial conc. measured:
0.1 mol/L
Duration:
4 h
pH:
1.2
Temp.:
40 °C
Initial conc. measured:
0.1 mol/L
Duration:
30 min
pH:
4
Temp.:
50 °C
Initial conc. measured:
0.1 mol/L
Duration:
5 d
pH:
4
Temp.:
50 °C
Initial conc. measured:
0.1 mol/L
Duration:
30 min
pH:
7
Temp.:
50 °C
Initial conc. measured:
0.1 mol/L
Duration:
5 d
pH:
7
Temp.:
50 °C
Initial conc. measured:
0.1 mol/L
Duration:
30 min
pH:
9
Temp.:
50 °C
Initial conc. measured:
0.1 mmol/L
Duration:
5 d
pH:
9
Temp.:
50 °C
Initial conc. measured:
0.1 mol/L
Positive controls:
no
Negative controls:
no
Statistical methods:
not relevant

Results and discussion

Preliminary study:
yes, 30 min
Transformation products:
yes
Remarks:
for all pH
Identity of transformation products
No.:
#1
Reference
Reference substance name:
Unnamed
IUPAC name:
butyl(oxo)stannanol
Inventory number:
InventoryMultipleMappingImpl [inventoryEntryValue=EC 218-880-1]
CAS number:
2273-43-0
Identity:
1-Butanestannonic acid
Identity:
Stannane, butylhydroxyoxo-
Identity:
butyl(hydroxy)stannanone
Molecular formula:
C4H10O2Sn
Molecular weight:
208.83
SMILES notation:
CCCC[Sn](=O)O
InChl:
InChI=1/C4H9.H2O.O.Sn/c1-3-4-2;;;/h1,3-4H2,2H3;1H2;;/q;;;+1/p-1/rC4H10O2Sn/c1-2-3-4-7(5)6/h5H,2-4H2,1H3
Details on hydrolysis and appearance of transformation product(s):
the substance hydrolysis cobletly in butylhydroxystannae
Total recovery of test substance (in %)
Remarks on result:
not determinable
Remarks:
very low solubility
Dissipation DT50 of parent compoundopen allclose all
Key result
pH:
1.2
Temp.:
40 °C
DT50:
< 30 min
Type:
not specified
Remarks on result:
not determinable because of methodological limitations
Remarks:
no accurate determination of t(1/2) possible based on time of analysis
Key result
pH:
4
Temp.:
50 °C
DT50:
< 30 min
Type:
not specified
Remarks on result:
not determinable because of methodological limitations
Remarks:
no accurate determination of t(1/2) possible based on time of analysis
Key result
pH:
7
Temp.:
50 °C
DT50:
< 30 min
Type:
not specified
Remarks on result:
not determinable because of methodological limitations
Remarks:
no accurate determination of t(1/2) possible based on time of analysis
Key result
pH:
9
Temp.:
50 °C
DT50:
< 90 min
Type:
not specified
Remarks on result:
not determinable because of methodological limitations
Remarks:
no accurate determination of t(1/2) possible based on time of analysis
Details on results:
the samples taken show after 4h respective 5d no fruther changes

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The substance hydrolyses at contact with water at all tested pH below 30 minutes in momobutylhydroxystannane (MBTO, CAS+ 2273-43-0)