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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Additional physico-chemical information

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Administrative data

Endpoint:
other: purity determination
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
1996
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: There is no standard internationally recognized protocol for this endpoint. The study was well documented and followed recognized GLP procedures.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1996
Report date:
1996

Materials and methods

Principles of method if other than guideline:
Although no guideline is available for this test, a company validated protocol was followed with full GLP compliance.
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium hydrogen-5-sulphoisophthalate
EC Number:
228-845-2
EC Name:
Sodium hydrogen-5-sulphoisophthalate
Cas Number:
6362-79-4
Molecular formula:
C8H6O7S.Na
IUPAC Name:
Sodium 3,5-dicarboxybenzenesulfonate
Details on test material:
- Name of test material: 5-(sodiosulfo)isophthalic acid
- Appearance: white powder
- Lot/batch No.: Sample reference number 65517
- Receipt date: July 12, 1996
- Other: PM No. 03278-00

Results and discussion

Results:
The purity was determined to be 93.5 weight percent.

Any other information on results incl. tables

Results

 Sample ID  Weight % Purity
   
 93.0
 2 93.6 
 3 93.8 
   
mean  93.5 
 standard deviation 0.42 
 % CV 0.449 

Applicant's summary and conclusion

Conclusions:
The mean weight percent purity as determined by titration was 93.5.