Registration Dossier

Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
01 March 2006 - 02 March 2006
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2006
Report Date:
2006

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
GLP compliance:
yes
Type of method:
air comparison pycnometer (for solids)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Specific details on test material used for the study:
Batch number: 05.9.9
Purity: 99.56%
Expiry date: 20 May 2007
Storage condition: Store in a dark and dry place at ambient temperature.

Results and discussion

Density
Type:
relative density
Density:
2.844 other: no units
Temp.:
20 °C

Any other information on results incl. tables

Calibration of Pycnometer

The pycnometer was calibrated with ultrapure water at 20.0 °C. The data of the calibration are shown in Table 1.

Table l : Data for the Calibration of the Pycnometer with Water

Glass vessel

Water filling at 20.0 °C

Distance difference of cylinder compression

Determined water volume

Deviation from nominal

Filled

(g)

Emptied

(g)

Netto weight

(g)

Volume

(mL)

(mm)

(mL)

(%)

93.2552

68.0541

25.2011

25.246

25.246

25.246

25.246

18.25

18.28

18.15

18.30

25.300

25.342

25.160

25.370

0.2

0.4

-0.3

0.5

93.2085

68.1108

50.2988

50.389

50.389

50.389

50.389

36.18

36.03

36.14

35.99

50.398

50.188

50.342

50.132

0.0

-0.4

-0.1

-0.5

93.2190

68.0918

75.4260

75.562

75.562

75.562

75.562

54.29

54.18

54.28

54.18

75.749

75.595

75.735

75.595

0.2

0.0

0.2

0.0

93.2188

68.0507

100.5941

100.775

100.775

100.775

100.775

72.10

72.19

72.10

72.20

100.679

100.805

100.679

100.819

-0.1

0.0

-0.1

0.0

 

Calibration curve parameters:

Y = A x X + B with:

X

Volume

Y

Difference way of cylinder compression

B

0.175884

A

0.714391

R2

0.99998 (correlation coefficient)

 

Density

The density of the test item was determined by means of the calibration curve. All relevant data are shown in Table 2.

 

Table 2: Data for the Determination of the Density

Test item at 20.0 °C

Netto weight

(g)

Distance difference of cylinder compression (mm)

Determined water volume (mL)

Determined density

(g/mL)

Mean density (g/mL)

97.054

24.59

24.55

24.52

24.56

34.175

34.119

34.077

34.133

2.840

2.845

2.848

2.843

2.844

94.505

23.82

24.05

23.94

23.89

33.097

33.419

33.265

33.195

2.855

2.828

2.841

2.847

2.843

Mean

Standard Deviation

% Standard Deviation

2.844

0.001

0.04

 

The density of Cuprous Thiocyanate was determined to be ρ20.0= 2.844 kg/L at 20.0 °C.

 

Relative Density

The relative density ρ20.04.0of Cuprous Thiocyanate was determined to be ρ20.04.0= 2.844 by means of the density of water at 4 °C (0.999972 kg/L)

Applicant's summary and conclusion

Conclusions:
The aim of the study was the determination of the relative density of Cuprous Thiocyanate and was determined to be ρ20.0 = 2.844 kg/L at 20.0 °C. The relative density of Cuprous Thiocyanate was calculated to be 2.844 at 20.0 °C by means of the density of water at 4 °C (0.999972 kg/L).
Executive summary:

The relative density of the test substance Cuprous Thiocyanate was determined according to EU Method A.3 (Relative Density) and OECD Guideline 109 (Density of Liquids and Solids).. The work was done according to the principles of Good Laboratory practice

The aim of the study was the determination of the relative density of Cuprous Thiocyanate and was determined to be ρ20.0 = 2.844 kg/L at 20.0 °C. The relative density of Cuprous Thiocyanate was calculated to be 2.844 at 20.0 °C by means of the density of water at 4 °C (0.999972 kg/L).