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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:
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:
2019
Report date:
2019

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

Constituent 1
Chemical structure
Reference substance name:
Dibenzyldimethylammonium chloride
EC Number:
202-903-7
EC Name:
Dibenzyldimethylammonium chloride
Cas Number:
100-94-7
Molecular formula:
C16H20N.Cl
IUPAC Name:
dibenzyldimethylammonium chloride
Test material form:
solid: crystalline

Results and discussion

Water solubilityopen allclose all
Key result
Water solubility:
>= 80 - < 84.7 other: g/100 g
Temp.:
23 °C
pH:
>= 2.9 - <= 3.7
Key result
Water solubility:
>= 80 - < 84.7 other: g/100 g
Temp.:
20 °C
pH:
>= 2.9 - <= 3.7

Any other information on results incl. tables

The following mixtures were prepared:

Weight of test item

 [g]

Amount of water added

[g]

Sample size

[g/100g]

Ratio

Observation

pH

1.04818

9.04834

10.38

1:9*

completely dissolved after shortly shaken by hand; clear, colorless, and homogeneous solution/mixture

3.7

3.49873

3.71491

48.50

1:1

completely dissolved afterrolling overnight; clear, colorless, and homogeneous solution/mixture

3.0

3.04100

2.0265

60.01

6:4

completely dissolved afterrolling overnight; clear, colorless, and homogeneous solution/mixture

3.0

3.54485

1.81586

66.13

65.35

completely dissolved afterrolling overnight; clear, colorless, and homogeneous solution/mixture

2.9

3.47862

1.48869

70.03

7:3

completely dissolved afterrolling overnight; clear, colorless, and homogeneous solution/mixture

2.9

3.75219

1.26808

74.74

75:25

completely dissolved afterrolling overnight; clear, colorless, and homogeneous solution/mixture

2.9

3.99565

0.99915

80.00

8:2

completely dissolved afterrolling overnight; clear, colorless, and homogeneous solution/mixture

2.9

4.28451

0.77213

84.73

85:15

not completely dissolved afterrolling overnight

**

4.51319

0.53138

89.47

9:1

not completely dissolved afterrolling for two days

**

 

 

 

 

Water used:

6.4

*Mixture from the pre-testing

** pH of these mixtures was not measureable.

Remark:

When mixing test item with water, cooling of the mixture was observed. The viscosity of the mixtures increased with increasing concentrations of test item.

The dissolved preparations (ratios 1 :9 - 8:2) were conditioned at 20 °C.

After conditioning over the weekend at 20.0 °C ± 0.5 °C, no changes were observed.

The undissolved preparations were heated overnight at 30 °C, then overnight at 50 °C and after that conditioned at 20 °C to investigate whether it is possible to produce saturated

solutions suitable for performing the flask method:

Ratio

Overnight at 30 °C

Overnight at 50 °C

Overnight at 20 °C

85:15

not completely

dissolved; supernatant liquid phase viscous

completely dissolved; mixture viscous

completely dissolved; mixture viscous

9:1

not completely

dissolved; supernatant liquid phase viscous

not completely

dissolved; undissolved amount decreased

undissolved, viscous mass without supernatant

Due to the fact that it was not possible to prepare samples with a liquid phase and a surplus of undissolved test item, the water solubility can only be estimated from the visual method.

The water solubility of the test item is > 80.0 g/100 g < 84.7 g/100 g (mtest item/ mmixture) at room temperature (T = 23 °C) and at T = 20.0 °C ± 0.5 °C.

Applicant's summary and conclusion