4-hydroxybenzophenone

Water solubility

Administrative data

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2012

Report date:

2013

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

GLP compliance:

yes (incl. QA statement)

Type of method:

flask method

Test material

Test material information

Constituent 1

Reference substance name:

4-hydroxybenzophenone

EC Number:

214-507-1

EC Name:

4-hydroxybenzophenone

Cas Number:

1137-42-4

Molecular formula:

C13H10O2

IUPAC Name:

4-benzoylphenol

Test material form:

solid: crystalline

Details on test material:

Name of test material (as cited in study report): 4-Hydroxybenzophenone
Analytical purity: 99.3 g/100g by 1H-NMR spectroscopy using the internal
standard method (determined during the GLP-study No.
11L00531 from Competence Center Analytics, BASF SE)

Results and discussion

Water solubility

Key result

Water solubility:

145 mg/L

Temp.:

20 °C

pH:

>= 6.2 - <= 6.3

Any other information on results incl. tables

Individual Results

Sample	mtest item [g]	vwater [ml]	pH		ctest item singlevalues [mg/l]	ctest item mean [mg/l]
Water used			5.9
1 / 24 h	85.49	100	6.2		145.90 147.26	146.58
2 / 48 h	86.92	100	6.3		148.44 149.63	149.04
3 / 72 h	86.73	100	6.3		140.78 140.90	140.84
Mean of allsingle values ± std. dev.				145.49 mg/l ± 3.81 mg/l

The water solubility of the test item is 145 ± 4 mg/l at T = 20.0 °C ± 0.5 °C, pH 6.3.