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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
20/07/1995-25/07/1995.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Well documented report of a guideline study conducted to GLP.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1995
Report date:
1995

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Reference substance name:
2-Acrylamido-2-methylpropanesulfonic acid, ammonium salt
IUPAC Name:
2-Acrylamido-2-methylpropanesulfonic acid, ammonium salt
Constituent 2
Reference substance name:
Ammonium 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonate
EC Number:
421-680-9
EC Name:
Ammonium 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonate
IUPAC Name:
421-680-9
Constituent 3
Reference substance name:
58374-69-9
EC Number:
611-646-3
Cas Number:
58374-69-9
IUPAC Name:
58374-69-9
Details on test material:
- Name of test material (as cited in study report): OS 114452 (Ammonium AMPS)
- Molecular formula (if other than submission substance): C7H16N2O4S
- Molecular weight (if other than submission substance): 225.29
- Smiles notation (if other than submission substance): [NH4+].O=S(=O)(O)CC(C)(C)/N=C(\[O-])C=C
- InChl (if other than submission substance): 1/C7H13NO4S.H3N/c1-4-6(9)8-7(2,3)5-13(10,11)12;/h4H,1,5H2,2-3H3,(H,8,9)(H,10,11,12);1H3
- Substance type: organic
- Physical state: solid (white powder)
- Analytical purity: not specified
- Impurities (identity and concentrations): not specified
- Composition of test material, percentage of components: 100%
- Purity test date: not specified
- Lot/batch No.: not specified
- Expiration date of the lot/batch: not specified
- Stability under test conditions: stable
- Storage condition of test material: room temperature

Results and discussion

Vapour pressure
Temp.:
25 °C
Vapour pressure:
0 Pa
Transition / decomposition
Transition / decomposition:
no
Transition temp.:
25 °C

Applicant's summary and conclusion

Conclusions:
The vapour pressure of the test substance was determined to be 7.4 x10-9 Pa at 25°C. The test material did not change in appearance under the conditions used in the determination.