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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
hydrolysis
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
2003
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
Data from the Hazardous Substances Databank (HSDB No 1636).

Data source

Referenceopen allclose all

Reference Type:
other: Expert review panel
Title:
Unnamed
Year:
2003
Report date:
2003
Reference Type:
publication
Title:
Unnamed
Year:
1966

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
Not specified.
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Diethyl sulphate
EC Number:
200-589-6
EC Name:
Diethyl sulphate
Cas Number:
64-67-5
Molecular formula:
C4H10O4S
IUPAC Name:
diethyl sulfate

Results and discussion

Transformation products:
yes
Identity of transformation productsopen allclose all
No.:
#1
Reference
Reference substance name:
Unnamed
IUPAC name:
ethanol
Inventory number:
InventoryMultipleMappingImpl [inventoryEntryValue=EC 200-578-6]
CAS number:
64-17-5
Identity:
Ethanol
Molecular formula:
C2H6O
Molecular weight:
46.068
SMILES notation:
CCO
InChl:
InChI=1/C2H6O/c1-2-3/h3H,2H2,1H3
No.:
#2
Reference
Reference substance name:
Unnamed
IUPAC name:
sulfuric acid
Inventory number:
InventoryMultipleMappingImpl [inventoryEntryValue=EC 231-639-5]
CAS number:
7664-93-9
Identity:
Sulfuric acid
Molecular formula:
H2O4S
Molecular weight:
98.079
SMILES notation:
OS(=O)(=O)O
InChl:
InChI=1/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)
Dissipation DT50 of parent compound
Key result
pH:
7
Temp.:
25 °C
Hydrolysis rate constant:
0 s-1
DT50:
1.7 h

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
The substance has a hydrolysis half-life of 1.7 hours at ph 7 and 25°C. The hydrolysis by-products are ethanol and sulphuric acid.