4-nitro-o-toluidine

Density

Link to relevant study record(s)

Reference

Endpoint:

density

Remarks:

density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017-03-07 – 2017-03-07

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 (as cited in study report): 2-methyl-4-nitroaniline
- Molecular formula: C7 H8 N2 O2
- Molecular weight: 152.152 g/mol
- Smiles notation: c1(cc(c(N)cc1)C)[N+](=O)[O-]
- InChI: 1S/C7H8N2O2/c1-5-4-6(9(10)11)2-3-7(5)8/h2-4H,8H2,1H3
- Substance type: Organic
- Physical state: Soli

Key result

Type:

density

Density:

1.309 g/cm³

Temp.:

20 °C

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)	-	973.3	971.2
Weight of empty dry pyknometer (Wp)		29.219	30.720
Weight of pyknometer filled with water (WA)		79.910	80.612
Weight of pyknometer + test Item (WPS)		34.147	35.740
Weight of pyknometer +test Item+ water (WB)		80.220	82.406

 

 

CALCULATIONS:

	Calculated values
	1^stCalculation	2^nd Calculation
Wo=WPS-WP	4.9280	5.0200
(WA-WB)	-0.3100	-1.7940
Specific gravity = WO/[WO+ (WA-WB)]	1.0671	1.5561
Specific Gravity; Gs	1.0671	1.5561
Density (g/cm³)	1.0652	1.5533
Mean Density (g/cm³)	1.3092

Conclusions:

The density of chemical 2-methyl-4-nitroaniline (CAS No. 99-52-5)was determined following OECD Guideline 109 and according to the method adapted from ASTM D 854-02 using glass pyknometer. The mean density of chemical 2-methyl-4-nitroaniline was found to be 1.3092 g/cm³at 20°C and 972.2 hPa

Executive summary:

The density of chemical  2-methyl-4-nitroaniline (CAS No. 99-52-5)was determined following OECD Guideline 109 and according to the method adapted from ASTM D 854-02 using glass pyknometer. The mean density of chemical  2-methyl-4-nitroaniline was found to be 1.3092 g/cm³at 20°C and 972.2 hPa

Description of key information

The density of chemical  2-methyl-4-nitroaniline (CAS No. 99-52-5)was determined following OECD Guideline 109 and according to the method adapted from ASTM D 854-02 using glass pyknometer. The mean density of chemical  2-methyl-4-nitroaniline was found to be 1.3092 g/cm³at 20°C and 972.2 hPa

Key value for chemical safety assessment

Relative density at 20C:

1.309

Additional information

The density of chemical  2-methyl-4-nitroaniline (CAS No. 99-52-5)was determined following OECD Guideline 109 and according to the method adapted from ASTM D 854-02 using glass pyknometer. The mean density of chemical  2-methyl-4-nitroaniline was found to be 1.3092 g/cm³at 20°C and 972.2 hPa

Other supporting studies from various reliable sources such as authoritative database and handbooks,the density chemical 2-methyl-4-nitroaniline was determined to be 1.1586 g/cm3 at 140 degree C.

As the data from lab has K1 reliability and the test was performed using OECD guidelines which has the value of density as 1.3092 g/cm3 at 20 degree C thus considered as key study for the chemical safety assessment.