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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Summary of public domain information

Data source

Reference
Reference Type:
other: EU RAR
Title:
European Union Risk Assessment Report: chromium trioxide, sodium chromate, sodium dichromate, ammonium dichromate, potassium dichromate
Author:
European Chemicals Bureau (Munn SJ et al, eds)
Year:
2005
Bibliographic source:
3rd Priority List; Volume 53

Materials and methods

Test guideline
Qualifier:
no guideline required
Deviations:
not applicable
Principles of method if other than guideline:
Visual assessment
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Potassium dichromate
EC Number:
231-906-6
EC Name:
Potassium dichromate
Cas Number:
7778-50-9
Molecular formula:
K2Cr2O7
IUPAC Name:
sodium dichromate
Details on test material:
No further details

Results and discussion

Physical state at 20°C and 1013 hPa:
solid
Form / colour / odour
Form:
crystalline
Colour:
Bright orange-red

Applicant's summary and conclusion

Conclusions:
Bright orange-red crystals
Executive summary:

Potassium dichromate is described as bright orange-red crystals