Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Study period:
13 Feb - 16 Feb 2017
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: see Remarks
Remarks:
The appearance of the test item is described in a reliable study report on the physical-chemical properties of the substance. Since no guideline was followed and no details on the methods are given, the description is considered as reliable with restrictions.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
visual observation.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Disodium 4,5-dihydroxybenzene-1,3-disulphonate
EC Number:
205-741-5
EC Name:
Disodium 4,5-dihydroxybenzene-1,3-disulphonate
Cas Number:
149-45-1
Molecular formula:
C6H6O8S2.2Na
IUPAC Name:
disodium 4,5-dihydroxybenzene-1,3-disulphonate

Results and discussion

Physical state at 20°C and 1013 hPa:
solid
Form / colour / odour
Key result
Form:
solid: particulate/powder
Colour:
Off-white
Substance type:
organic

Applicant's summary and conclusion