Diammonium tartrate

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2015-11-05

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

GLP compliance:

no

Type of method:

air comparison pycnometer (for solids)

Specific details on test material used for the study:

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

Type:

relative density

Density:

1.6 other: dimensionless

Temp.:

20 °C

Remarks on result:

other: Relative density compared to water at 4°C; Standard error +/- 0.01; 2 test series both with relative density of 1.60

Results
Results are show in Tables 1 and 2.

Table 1 – 1^st test series results

Weight: 2.6102 g	P1[psi]	P2[psi]	Volume [cm^3]	Density ρPR[g.cm^-3]
1^stmeasurement	19.588	9.940	1.6271	1.6042
2^ndmeasurement	19.581	9.936	1.6276	1.6037
3^rdmeasurement	19.568	9.929	1.6282	1.6032
Mean			1.6276	1.6037

 

Table 1 – 2^ndtest series results

Weight: 2.6890 g	P1[psi]	P2[psi]	Volume [cm^3]	Density ρPR[g.cm^-3]
1^stmeasurement	19.544	9.877	1.6790	1.6015
2^ndmeasurement	19.514	9.863	1.6776	1.6029
3^rdmeasurement	19.552	9.884	1.6753	1.6051
Mean			1.6773	1.6032

 

The mean density for the two test series is 1.60 g/cm³.

The relative density (compared to water at 4 °C) is: D₄^R=ρ_PR/ρ_W4= 1.60/1.00 = 1.60±0.01

Description of key information

A study was conducted with ammoniumtartrate extra pure according to EU Method A.3. and OECD guideline 109 for determination of relative density. Substance has relative density of 1.60 with density measured at 20°C and compared to relative density of water at 4°C. 

Key value for chemical safety assessment

Relative density at 20C:

1.6