Sodium ascorbate

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2009-11-30 to 2010-03-23

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Deviations:

no

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

air comparison pycnometer (for solids)

Key result

Type:

relative density

Density:

1.88 g/cm³

Temp.:

19.7 °C

The test was performed at a temperature of 19.7 °C ± 0.1 °C.

 

The calibration procedure was performed in triplicate. The individual measurements and the results are presented in Table 1.

 

The determination of the relative density of the test item was performed with two independent test item samples each measured in triplicate. The individual measurements are summarized in Table 2.

 

The tabulated values in Table 1 and Table 2 represent rounded results, which were obtained by calculation using the exact raw data.

 

The density of the test item Sodium ascorbate crystalline was determined to be 1.880 g/cm³ (= 1.880·10³ kg/m³) at 19.7 °C ± 0.1 °C using a gas comparison pycnometer.

 

Table 1       Results of the Calibration

Measurement	p1	p2	p3	p4	V ref	V cell
	[psi]	[psi]	[psi]	[psi]	[cm³]	[cm³]
1	17.373	5.843	17.364	6.513	6.981	13.776
2	17.384	5.847	17.724	6.649	6.976	13.765
3	17.776	5.979	17.671	6.627	6.997	13.806
Mean:					6.985	13.782

Calibration volume (V_cal): 2.145 cm³

Gas: Helium

 

 

Table 2: Determination of the Density of Sodium ascorbate crystalline

Sample No.	Sample Weight [g]	Measure-ment	p1 (sample) [psi]	p2 (sample) [psi]	V (sample) [cm^3]	Density   [g/cm^3]
1	2.863	1	16.500	5.987	1.517	1.887
		2	16.891	6.131	1.524	1.879
		3	15.767	5.723	1.524	1.879
2	3.049	1	16.869	6.154	1.621	1.881
		2	15.720	5.735	1.621	1.881
		3	15.642	5.708	1.626	1.875
Mean:						1.880
Standard deviation ±						0.004

 

Conclusions:

The relative density of the test substance was determined to be 1.880 at 19.7 °C ± 0.1 °C.

Executive summary:

The density of the test item Sodium ascorbate crystalline was determined to be 1.880 g/cm³ (= 1.880 · 10³ kg/m³) at 19.7 °C ± 0.1 °C using a gas comparison pycnometer. The relative density of the test item was determined to be 1.880.

 

 

Description of key information

The relative density of the test substance was determined to be 1.88 at 19.7 °C ± 0.1 °C.

Key value for chemical safety assessment

Relative density at 20C:

1.88

Additional information

The density of the test item was determined to be 1.88 g/cm³ (= 1.88 · 10³ kg/m³) at 19.7 °C ± 0.1 °C using a gas comparison pycnometer. The relative density of the test item was determined to be 1.88.