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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
melting point/freezing point
Type of information:
not specified
Adequacy of study:
key study
Study period:
no data
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: DATA FROM IFA GESTIS-STOFFDATENBANK

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
2010

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
No data
GLP compliance:
not specified
Type of method:
other: NO DATA

Test material

Constituent 1
Chemical structure
Reference substance name:
Chromium potassium bis(sulphate)
EC Number:
233-401-6
EC Name:
Chromium potassium bis(sulphate)
Cas Number:
10141-00-1
Molecular formula:
Cr.2H2O4S.K
IUPAC Name:
chromium(3+) potassium disulfate
Test material form:
solid: crystalline
Details on test material:
- Molecular formula (if other than submission substance): CrK(SO4)2
- Molecular weight (if other than submission substance): 283,22 g/mol
- Smiles notation (if other than submission substance):[Cr3+].[K+].[O-]S(=O)(=O)[O-].[O-]S([O-])(=O)=O
- InChl (if other than submission substance):1S/Cr.K.2H2O4S/c;;2*1-5(2,3)4/h;;2*(h2,1,2,3,4)/q+3;+1;;+1;;/p-4
- Substance type: inorganic
- Physical state: cristalline
- Analytical purity: 100%
- Composition of test material, percentage of components: 100% CrK(SO4)2
- Isomers composition: no applicable

Results and discussion

Melting / freezing point
Melting / freezing pt.:
> 89 - < 400 °C
Decomposition:
yes
Remarks:
WHEN HEATED
Sublimation:
yes
Remarks:
LIBERATION OF WATER
Subl. temp.:
> 300 °C
Remarks on result:
other: DECOMPOSITION PRODUCTS ARE POTASSIUM SULPHATE AND CHROMIUM (III) OXIDE

Any other information on results incl. tables

THE SUBSTANCE CAN REACT DANGEROUSLY WITH:

HEAT---DECOMPOSITION PRODUCTS---OXIDIZING AGENTS

ALCALINE SOLUTION

Applicant's summary and conclusion

Conclusions:
MELTING POINT IS > 300°C
Executive summary:

THE SUBSTANCE, WHEN HEATED, CAN REACT DANGEROUSLY WITH:

HEAT---DECOMPOSITION PRODUCTS---OXIDIZING AGENTS

ALCALINE SOLUTION