Slimes and Sludges, battery scrap, antimony- and lead-rich

Water solubility

Administrative data

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: see 'Remark'

Remarks:

The substance is a UVCB. Standard tests for this endpoint are intended for single substances and are not appropriate for this complex substance. Therefore, the results presented are indicative of the potential solubility of this UVCB. For this reason the results should only be used as indicative and hence the reliability code assigned.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2010

Report date:

2010

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

GLP compliance:

no

Remarks:

other quality assurance

Type of method:

flask method

Test material

Test material information

Constituent 1

Reference substance name:

Slimes and Sludges, battery scrap, antimony- and lead-rich

EC Number:

310-061-8

EC Name:

Slimes and Sludges, battery scrap, antimony- and lead-rich

Cas Number:

102110-60-1

Molecular formula:

Molecular weigth/formula concept not applicable to Inorganic UVCB (comlex metal containing substance)

IUPAC Name:

Slimes and Sludges, battery scrap, antimony- and lead-rich

Results and discussion

Water solubility

Water solubility:

0.3 - 170 mg/L

Temp.:

20 °C

pH:

>= 7.84 - <= 9.64

Remarks on result:

other: The average water solubility of the constituents of the UVCB varies from 0.3 to 170 mg/L.

Details on results:

The constituent with the highest average solubility in the UVCB is sulphur (170 mg/L). The solubility of lead is 0.4 mg/L.
The solubility of Co, Cr, Cu, Fe and Ni are blow 0.1 mg/L and the solubility of Ag, Al, As, Bi, Cd, , K, Mn, Mo, Ni, Se, Sn and Te is below 0.2 mg/L.

Any other information on results incl. tables

Substances with solubility <10 mg/l are considered low-soluble and those with solubility <1 mg/l are considered poorly soluble. The standard method involves three tests, which is not enough to conduct a statistical analysis.

Preliminary test: 

0.1 g sample was not found to be soluble in the following volumes of water: 0.1 mL, 0.5 mL, 1 mL, 2 mL, 10 mL, 100 mL, 200 mL 

.

Flask test: Result are presented in Table 1.

Table 1 Water solubility after respectively 14, 15 and 16 days shaking and calculated average water solubility.

.

		Shaking for	Shaking for	Shaking for
		14 days	15 days	16 days	Average
	Sample code	10TT00905	10TT00905	10TT00905
pH		9.47	7.84	9.64
ICP Ag	mg/l	<0.2	<0.2	<0.2	<0.2
ICP Al	mg/l	<0.2	<0.2	<0.2	<0.2
ICP As	mg/l	<0.2	<0.2	<0.2	<0.2
ICP B	mg/l	0.4	0.4	0.4	0.4
ICP Bi	mg/l	<0.2	<0.2	<0.2	<0.2
ICP Ca	mg/l	2.98	2.79	2.72	2.8
ICP Cd	mg/l	<0.2	<0.2	<0.2	<0.2
ICP Co	mg/l	<0.1	<0.1	<0.1	<0.1
ICP Cr	mg/l	<0.1	<0.1	<0.1	<0.1
ICP Cu	mg/l	<0.1	<0.1	<0.1	<0.1
ICP Fe	mg/l	<0.1	<0.1	<0.1	<0.1
ICP K	mg/l	<2	<2	<2	<2
ICP Mg	mg/l	0.22	0.2	0.21	0.2
ICP Mn	mg/l	<0.2	<0.2	<0.2	<0.2
ICP Mo	mg/l	<0.2	<0.2	<0.2	<0.2
ICP Na	mg/l	431	420	443	431
ICP Ni	mg/l	<0.1	<0.1	<0.1	<0.1
ICP Pb	mg/l	0.35	0.38	0.39	0.4
ICP S	mg/l	168	167	176	170
ICP Sb	mg/l	3.2	3.3	3.4	3.3
ICP Se	mg/l	<0.2	<0.2	<0.2	<0.2
ICP Si	mg/l	10.1	9.8	9.9	9.9
ICP Sn	mg/l	<0.2	<0.2	<0.2	<0.2
ICP Te	mg/l	<0.2	<0.2	<0.2	<0.2
ICP Zn	mg/l	0.39	0.39	<0.2	0.3

Applicant's summary and conclusion

Conclusions:

Interpretation of results (migrated information): slightly soluble (0.1-100 mg/L)
The water solubility test was done for one sample (10TT00905). According to the results of the water solubility test sulphur is the most soluble constituent of the UVCB (170 mg/L). The solubility of lead is 0.4 mg/L. However the test method is primarily used for individual substances and not for UVCBs. Therefore the results of the test must be used with caution.

Executive summary:

According to the results of the water solubility test sulphur is the most soluble constituent of the UVCB (170 mg/L). The solubility of lead is 0.4 mg/L. However the test method is primarily used for individual substances and not for UVCBs. Therefore the results of the test must be used with caution.