Registration Dossier
Registration Dossier
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EC number: 442-080-3 | CAS number: -
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
Partially soluble in water.
Key value for chemical safety assessment
- Water solubility:
- 20 g/L
- at the temperature of:
- 20 °C
Additional information
The soluble fraction was measured by ion chromatography after extraction with water.
The substance is partially soluble as only some constituents dissolve in water. The main part is in insoluble.
The water solubility of some possible constituents are:
|
EC |
CAS |
Water solubility (ECHA Database) |
Piperazine |
203-808-3 |
110-85-0 |
150 g/l |
Melamine |
203-615-4 |
108-78-1 |
3.48 g/l |
Polyphosphoric acid |
232-417-0 |
8017-16-1 |
soluble |
Orthophosphoric acid |
231-633-2 |
7664-38-2 |
> 850 g/L |
1,3,5-triazine-2,4,6-triamine phosphate |
255-449-7 |
41583-09-9 |
3.9 g/l |
piperazine, compound with phosphoric acid |
217-775-8 |
1951-97-9 |
154 g/l |
According to the analytical report, this substance may contain 7.46% of melamine and 18.6% piperazine. The latter can be considered the limiting factor and approximately, the water solubility for this substance can be considered as 20 g/l. This value may support the assessment of the exposure factor in a conservative way, even though it does not represent the real solubility of the substance, as a fraction of it will be always insoluble in water.
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