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Physical & Chemical properties

Water solubility

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water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: This study does not follow normalised testing guideline and GLP, but was performed according to an acceptable method.
equivalent or similar to guideline
EU Method A.6 (Water Solubility)
Version / remarks:
Not specified
not specified
GLP compliance:
Other quality assurance:
other: ISO 9001:2015 (incl. certificate)
Certificate from 15 January 2018
Type of method:
flask method
Water solubility:
> 400 g/L
Conc. based on:
test mat.
23.5 °C
Details on results:
An amount of 75g of NaTFSI was added to 100g of deionized water without any remaining particle observable.The temperature of this solution was 23.5°C and pH value was measured 9.3.
The solubility calculated for NaTFSI in water is then: 75/175 = 42.8% at 23.5°C
Sodium bis(trifluoromethylsulfonyl)imide was highly soluble in water with a solubility 428 g/L.
Executive summary:

In this study the water solubility of Sodium bis(trifluoromethylsulfonyl)imide has been determined. An amount of 75 g of the test substance was added to 100 g deionized water and no remaining particles were observed. It was therefore concluded that the water solubility was 428 g/L at 23.5°C. The pH of this solution was 9.3.

Description of key information

Sodium bis(trifluoromethylsulfonyl)imide was highly soluble in water with a solubility of 428 g/L at 23.5°C and a pH of 9.3.

Key value for chemical safety assessment

Water solubility:
428 g/L
at the temperature of:
23.5 °C

Additional information