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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

It is important to note that MV31-K-salt is sold as an aqueous solution for reason of stability. While data are provided on the dried salt, MV31-K-salt decomposes in dry form. Water is a necessary stabilizer. MV31-K-salt is an intermediate used under strictly controlled conditions. Data requirements are limited to available data only.

Physical and Chemical Properties

Property

IUCLID Section number

REACh Column 1 number

Value

Data source

Klimisch rank

Note

Appearance/ physical state/ color

4.1

7.1

Grey granules

Experimental

1

Description from study reports

Melting point/ Freezing point

4.2

7.2

No melting point

Experimental

1

Decomposes in the range 175-265 °C

Boiling Point

4.3

7.3

No boiling point

Experimental

1

Decomposes without boiling

Density

4.4

7.4

2 at 20.5 °C relative to water at 4 °C

Experimental

1

Vapour pressure

4.6

7.5

<1E-06 Pa at 20 °C

Experimental

4

Partition coefficient

4.7

7.8

-0.78

Experimental

2

Octanol:water solubility ratio

Water Solubility

4.8

7.7

345 g/L at 30 °C

Experimental

1

pH ca. 7.6

Surface tension

4.10

7.6

45.3 mN/m at 20 °C

Experimental

1

1000 mg/L

Self-ignition temperature

4.12

7.12

No self ignition

Experimental

1

Maximum temp., 400 °C

Flammability

4.13

7.10

Not flammable

Experimental

1

Substance could not be ignited with gas flame

Explosiveness

4.14

7.11

Not explosive

Experimental

Decomposition energy 296 J/g in screening test (<500 J/g)