Reaction mass of ammonium(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl) hydrogen phosphate and ammonium bis(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl) phosphate

Appearance / physical state / colour

Link to relevant study record(s)

Reference

Endpoint:

appearance / physical state / colour

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Qualifier:

no guideline required

Version / remarks:

State of substance is just a visual assessment of the material. THere is no guideline for this end point

GLP compliance:

no

Specific details on test material used for the study:

Thetawet FS-8250 is a 28% actives aqueous emulsion, water dispersible, low foam anionic fluorosurfactant
The active components are ammonium salts of [Mono & Di] 2-(Perfluorohexyl)ethyl-Phosphate. Found at ca. 10% and 18% respectively in the final product.
The substance is not possible to isolate from water and if attempted, there is decomposition with a loss of ammonia. The substance is also functionally surface active, forming emulsions in water and oil
Lot number: w17061205
Manufacturing date: 6/12/2017
Manufacturing Location 103 Walnut Grove Road, Cartersville, GA 30120 QC data are as follows:

Physical state at 20°C and 1013 hPa:

liquid

Remarks:

This substance is only stable in aqueous solution

Key result

Form:

liquid - liquid: emulsion

Remarks:

This substance is only stable in aqueous solution

Colour:

Off-white

Odour:

slight

Substance type:

organic

The slight odour comes from the equilibria of ammonium salts whicharea function of the counterion, pH, and ambient conditions.

While ammonia is volatile (bpt – 33 deg. C) and much lighter than air (0.54relative density),if the product is dried, the dryingprocess will drive off water and ammonia. As ammonia is lost in the process, more and more of the free acid is formed. The final dried product will be a mixture of the ammonium salt and the free acid

Description of key information

The substance is not possible to isolate from water and if attempted, there is decomposition with a loss of ammonia. A description of the chemistry relating to the equilibrium behaviour between the two species in this substance is appended to this end point.

The substance is also functionally surface active, forming emulsions in water and oil

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:

liquid