Copper thiocyanate

Density

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 guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Test guideline 2

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

GLP compliance:

yes

Type of method:

air comparison pycnometer (for solids)

Test material

Test material information

Constituent 1

Reference substance name:

Copper thiocyanate

EC Number:

214-183-1

EC Name:

Copper thiocyanate

Cas Number:

1111-67-7

Molecular formula:

CHNS.Cu

IUPAC Name:

copper thiocyanate

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
R^2	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 ρ_20.0= 2.844 kg/L at 20.0 °C.

 

Relative Density

The relative density ρ^20.0_4.0of Cuprous Thiocyanate was determined to be ρ^20.0_4.0= 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).