Disodium tartrate

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

06 November 2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

GLP compliance:

no

Type of method:

other: gas comaprison pycnometer (for solids)

Specific details on test material used for the study:

Storage conditions: Ambient temperature (10 to 30 °C)

Key result

Type:

relative density

Density:

1.8 other: dimensionless

Temp.:

20.2 °C

Remarks on result:

other: Relative density compared to water at 4 °C; Standard error +/- 0.01; 2 test series with relative density of 1.804 and 1.802

Results
Results are show in Tables 1 and 2.

Table 1 – 1^st test series results

Weight: 1.5079 g	P1[psi]	P2[psi]	Volume [cm^3]	Density ρPR[g.cm^-3]
1^stmeasurement	19.562	10.506	0.8370	1.8016
2^ndmeasurement	19.520	10.484	0.8362	1.8034
3^rdmeasurement	19.543	10.497	0.8352	1.8054
Mean			0.8361	1.8035

 

Table 1 – 2^nd test series results

Weight 1.6603 g	P1[psi]	P2[psi]	Volume [cm^3]	Density ρPR[g.cm^-3]
1^stmeasurement	19.599	10.467	0.9127	1.8014
2^ndmeasurement	19.540	10.436	0.9210	1.8028
3^rdmeasurement	19.502	10.415	0.9220	1.8008
Mean			0.9215	1.8016

 

The mean density for the two test series is 1.80 g/cm³.

The relative density (compared to water at 4 °C) is: D₄^R = ρ_PR/ρ_W4 = 1.80/1.00 = 1.80 ± 0.01

Description of key information

Relative density: 1.80 at 20.2 °C (OECD 109, air comparison pycnometer)

Key value for chemical safety assessment

Relative density at 20C:

1.8