o-anisic acid

Density

Link to relevant study record(s)

Reference

Endpoint:

density

Remarks:

density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

03-04-2017 – 03-04-2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

Experimental result performed using standard methods of analysis

Qualifier:

according to guideline

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

Specific details on test material used for the study:

- Name of test material : 2-methoxybenzoic acid
- Molecular formula: C8H8O3
- Molecular weight : 152.1482 g/mol
- Smiles notation : COc1ccccc1C(=O)O
- InChl:1S/C8H8O3/c1-11-7-5-3-2-4-6(7)8(9)10/h2-5H,1H3,(H,9,10)
- Substance type:Organic
- Physical state:Solid

Key result

Type:

density

Density:

1.135 g/cm³

Temp.:

20 °C

Remarks on result:

other: Pressure=970.8 hPa

Method Details		Observations		Remarks if, any
Guideline	OECD 109	1^stReading	2^nd 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)	-	20^oC	20^oC
Atmospheric pressure (in hPa)	-	971.0	970.6
Weight of empty dry pyknometer (Wp)		30.203	29.127
Weight of pyknometer filled with water (WA)		80.424	78.195
Weight of pyknometer + test Item (WPS)		41.288	39.777
Weight of pyknometer +test Item+ water (WB)		81.293	79.886

 

 

CALCULATIONS:

	Calculated values
	1^stCalculation	2^nd Calculation
Wo=WPS-WP	11.0850	10.6500
(WA-WB)	-0.8690	-1.6910
Specific gravity = WO/[WO+ (WA-WB)]	1.0850	1.1887
Specific Gravity; Gs	1.0850	1.1887
Density (g/cm³)	1.0830	1.1865
Mean Density (g/cm³)	1.1348

Conclusions:

The density of test item 2-methoxybenzoic acid (CAS No. 579-75-9)was determined following OECD Guideline 109 and according to the Adapted from ASTM D854-02 using glass pyknometer. The mean density of chemical 2-methoxybenzoic acid was determined to be 1.1348 g/cm³ at 20°C and 970.8 hPa

Executive summary:

The density of test item 2-methoxybenzoic acid (CAS No. 579-75-9)was determined following OECD Guideline 109 and according to the Adapted from ASTM D854-02 using glass pyknometer. The mean density of chemical 2-methoxybenzoic acid  was determined to be 1.1348 g/cm³ at 20°C and 970.8 hPa

Description of key information

The density of chemical 2-methoxybenzoic acid (CAS No. 579-75-9)was determined following OECD Guideline 109 and according to the Adapted from ASTM D854-02 using glass pyknometer. The mean density of chemical 2-methoxybenzoic acid  was determined to be 1.1348 g/cm³ at 20°C and 970.8 hPa

Key value for chemical safety assessment

Relative density at 20C:

1.135

Additional information

The density of chemical 2-methoxybenzoic acid (CAS No. 579-75-9)was determined following OECD Guideline 109 and according to the Adapted from ASTM D854-02 using glass pyknometer. The mean density of chemical 2-methoxybenzoic acid  was determined to be 1.1348 g/cm³ at 20°C and 970.8 hPa

Other supporting studies from various reliable sources such as authoritative database and handbook also suggests that the density of chemical 2-methoxybenzoic acid was determined to be in the range of 1.2 g/cm3 to 1.38 g/cm3.

As the data from lab has K1 reliability and the test was performed using OECD guidelines which has the value of density as 1.1348 g/cm3 at 20 degree C thus considered as key study for the chemical safety assessment.