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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
October 2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study performed according to Test A.1 - Reg.n°440-2008

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
GLP compliance:
no
Type of method:
method according to Siwoloboff

Test material

Constituent 1
Reference substance name:
NMSBA
IUPAC Name:
NMSBA
Constituent 2
Chemical structure
Reference substance name:
4-methanesulfonyl-2-nitrobenzoic acid
EC Number:
601-017-1
Cas Number:
110964-79-9
Molecular formula:
C8 H7 N1 O6 S1
IUPAC Name:
4-methanesulfonyl-2-nitrobenzoic acid
Details on test material:
Study performed on Commercial Batch n°30014009 which relates to NMSBA crude containing 15% water but in line with substance identity as described in Section 1.2

Analytical characterisation of the batch

SPECIFICATIONS METHODS RESULTS
Appearance Wet powder, LAM23/014/037 Accepted
white to greenish
Assay by titration >= 75.0 % LAM13/002/011.25 83,7 %
2-NMST by HPLC <= 3.0 % LAM13/002/011.46 0,9 %
Loss on drying by IR <= 20.0 % LAM13/002/011.26 15,0 %

The batch is in compliance with commercial specification

Results and discussion

Boiling point
Boiling pt.:
> 250 °C
Atm. press.:
1 013 hPa
Decomp. temp.:
ca. 250 °C
Remarks on result:
other: The degradation of the product starts before detection of boiling point at around 250°C.

Any other information on results incl. tables

The degradation of the product starts at around 250°C be

fore detection of boiling point . The product becomes black tar and the boiling point can not be determined.

Applicant's summary and conclusion

Executive summary:

The Boiling point of NMSBA can not be determined at 1013 hPa and is estimated greater than 250°C as the degradation of the substance starts before detection of the boiling point at around 250°C.