Alkanes, C10-13-iso-

Water solubility

Link to relevant study record(s)

Reference

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Study period:

17 Nov - 24 Nov 2017

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Remarks:

Preliminary water solubility test

Qualifier:

according to guideline

Guideline:

EU Method A.6 (Water Solubility)

Version / remarks:

Determination by visual inspection

GLP compliance:

yes (incl. QA statement)

Remarks:

LUBW Landesanstalt für Umwelt, Messungen und Naturschutz Baden-Württemberg, Karlsruhe, Germany

Type of method:

other: Preliminary test

Key result

Water solubility:

< 10 mg/L

Conc. based on:

test mat. (dissolved fraction)

Temp.:

20 °C

Remarks on result:

other: pH not reported

Results
Table 1 - Preliminary Test 1

Test item [mg]	Total volume of ultra-pure water [mL]	Time of shaking [min]	Remarks
115.60	1	10	Test item is not dissolved
	2
	10
	100		Test item is not dissolved, < 1160 mg/L
	100	4020

Therefore the approximate solubility of the test item was estimated to be below 1160 mg/L. The test was done a second time with a smaller initial weight, ca 9 mg of test item and larger amounts of water.

Table 2 – Prelimary Test 2

Test item [mg]	Total volume of ultra-pure water [mL]	Time of shaking [min]	Remarks
8.90	200	10	Test item is not dissolved
	300
	400
	500
	1000 1000 1000		Test item is not dissolved, < 9 mg/L
		1440
		5760

 

The test was stopped since the remaining undissolved test item was hard to see and therefore in further dilution steps could not be decided whether the test item is dissolved or not. The approximate solubility of the test item was determined to be < 10 mg/L.

Discussion and Conclusion
The solubility of the test item was determined in ultra-pure water at ambient temperature by visual inspection according to EC method A.6 (Regulation (EC) No 440/2008) and OECD guideline 105. Visual approach was selected because the test item is a UVCB substance. Two preliminary tests were done. The test was stopped since the remaining undissolved test item was hard to see and therefore in further dilution steps could not be decided whether the test item is dissolved or not. The approximate solubility of the test item was determined to be < 10 mg/L.

Conclusions:

Water solubility < 10 mg/L at ambient temperature (Preliminary Test, EU Method A.6)

Executive summary:

Water solubility <10 mg/L at ambient temperature (Preliminary Test, EU Method A.6)

Description of key information

There is data available for this substance, which is presented in the dossier.

The water solubility of Alkanes, C10-13, iso- is reported to be < 10 mg/L at ambient temperature (Preliminary Test, EU Method A.6)