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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Appearance / physical state / colour

Currently viewing:

Administrative data

Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Study period:
12 February - 18 February 2019
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report date:
2019

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Visual observation as part of as GLP melting point study.
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
Potassium isobutyrate
EC Number:
243-077-8
EC Name:
Potassium isobutyrate
Cas Number:
19455-20-0
Molecular formula:
C4H8O2.K
IUPAC Name:
potassium 2-methylpropanoate
Test material form:
solid: particulate/powder
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material:
Sponsor / 18110908G
- Expiration date of the lot/batch:
31 Oct 2020
- Purity test date:
01 Nov 2018

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material:
Room Temperature (20 ± 5 °C); Keep away from humidity
- Stability under test conditions:
Stable
- Solubility and stability of the test substance in the solvent/vehicle:
Stability in solvents: H2O: 96h; EtOH: unknown; acetone: unknown; CH3CN: unknown; DMSO: unknown
Solubility in solvents: H2O: > 1 g/L; EtOH: unknown; acetone: unknown; CH3CN: unknown; DMSO: unknown

Results and discussion

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

Applicant's summary and conclusion

Conclusions:
Potassium isobutyrate was observed to be a white powder under standard laboratory conditions.