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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
surface tension
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because water solubility is below 1 mg/L at 20°C
Justification for type of information:
JUSTIFICATION FOR DATA WAIVING
The study does not need to be conducted because water solubility is below 1 mg/L at 22°C.
Cross-reference
Reason / purpose for cross-reference:
reference to other study
Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 2016-11-04 to 2016-11-04
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Qualifier:
no guideline followed
Principles of method if other than guideline:
Spectrophotometry of the aqueous extract from the powder
GLP compliance:
no
Type of method:
other: spectrophotometry
Key result
Water solubility:
ca. 0.174 mg/L
Conc. based on:
test mat. (dissolved fraction)
Loading of aqueous phase:
0.5 other: g/100g
Temp.:
22 °C
Remarks on result:
other: pH not mentionned in the study

Results

 

 

0.5 g of powder

Visual aspect of the testing solution before dilution

Colorless

 

Filtration

Porosiy de 0,45 µm

Factor of dilution

2

Spectrometry results:

(Cary 60 Agilent – Xenon lamp)

DO at 344 nm = 0.0023 u.Abs

DO at 670 nm = 0.0048 u.Abs

Calculated DO

DO at 344 nm = 0.0046 u.Abs

DO at 670 nm = 0.0096 u.Abs

DO of reference

(Concref= 9.76 mmg/L)

DO at 340 nm = 0.2580 u.Abs

DO at 667 nm = 0.2170 u.Abs

Calculated

Concentration in water

DO at 340 nm = 0.174 mg/L

DO at 670 nm = 0.432 mg/L

The spectra contains 3 peaks at around 340 nm, 620 nm and 670 nm. The DO for the 620 nm and 670 nm peaks has large fluctuation in the mixture water/NMP according to the proportion of both solvents. Therefore, the peak at 348 nm is the most reliable.

Conclusions:
The water solubility of the subtance is 0.174 mg/L.
Executive summary:

By spectrophotometry, the water solubility is 0.174 mg/L.

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion