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Physical & Chemical properties

## Density

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##### Reference
Endpoint:
density
Remarks:
density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2016-12-12 – 2016-12-13
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Experimental result performed using standard methods of analysis
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Principles of method if other than guideline:
The density is calculated from the difference in weight between the full and empty pycnometer and its volume
GLP compliance:
no
Type of method:
pycnometer method
Type:
density
Density:
1.22 g/cm³
Temp.:
20 °C
Remarks on result:
other: pressure=975.6 hPa

 Method Details Observations Remarks if, any Guideline OECD 109 1stReading 2nd Reading Method Adapted from ASTM 854-02 Principle of method The density of test item is determined by using pyknometer. It is the ratio of mass of the unit volume of test item at a stated temperature to mass of the same volume of gas free distilled water at a stated temperature. Test temperature (°C) - 20oC 20oC Atmospheric pressure (in hPa) - 975.4 975.4 Weight of empty dry pyknometer (Wp) 30.880 g 29.161 g Weight of pyknometer filled with water (WA) 81.189 g 79.763 g Weight of pyknometer + test Item (WPS) 35.807 g 35.807 g Weight of pyknometer +test Item+ water (WB) 82.070 g 80.373 g

CALCULATIONS:

 Calculated values 1st Calculation 2nd Calculation Wo=WPS-WP 4.927 5.261 (WA-WB) -0.881 -0.974 Density = WO/[WO+ (WA-WB)] 4.927/[4.927-0.881] 5.261/[5.261-0.974] Specific Gravity; Gs 1.217*0.9982 1.228*0.9982 Density (g/cm³) 1.215 1.225 Mean Density (g/cm³) 1.220

Conclusions:
The density of test item 3-Hydroxyacetophenone (CAS No. 121-71-1)was determined following OECD Guideline 109 and according to the method Adapted from ASTM D854-02 using glass pyknometer.The mean density of 3-Hydroxyacetophenone (CAS No. 121-71-1) was determined to be 1.220 g/cm³ at 20°C and 975.6 hPa.
Executive summary:

The density of test item 3-Hydroxyacetophenone (CAS No. 121-71-1)was determined following OECD Guideline 109 and according to the method Adapted from ASTM D854-02 using glass pyknometer.The mean density of 3-Hydroxyacetophenone (CAS No. 121-71-1) was determined to be 1.220 g/cm³ at 20°C and 975.6 hPa.

### Description of key information

The density of test item 3-Hydroxyacetophenone (CAS No. 121-71-1)was determined following OECD Guideline 109 and according to the method Adapted from ASTM D854-02 using glass pyknometer.The mean density of 3-Hydroxyacetophenone (CAS No. 121-71-1) was determined to be 1.220 g/cm³ at 20°C and 975.6 hPa.

### Key value for chemical safety assessment

Relative density at 20C:
1.22

### Additional information

The density of test item 3-Hydroxyacetophenone (CAS No. 121-71-1)was determined following OECD Guideline 109 and according to the method Adapted from ASTM D854-02 using glass pyknometer.The mean density of 3-Hydroxyacetophenone (CAS No. 121-71-1) was determined to be 1.220 g/cm³ at 20°C and 975.6 hPa.

Other supporting study from reliable sources also suggests that the density of the substance 3'-hydroxyacetophenone was determined to be determined to be in the range of 1.0092 g/cm3 to 1.1 g/cm3 at 25°C.

As the data from lab has K1 reliability and the test was performed using OECD guidelines which has the value of density as 1.220 g/cm3 thus considered as key study for the chemical safety assessment.