1'-acetonaphthone

Density

Link to relevant study record(s)

Reference

Endpoint:

density

Remarks:

density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017-02-16 – 2017-02-17

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 of Test item 1'-acetonaphthone (CAS No. 941-98-0 ) was determined following OECD guideline 109 and according to the Indian standard method for determination of density of liquids [IS 4730:1994 (Reaffirmed 2010)].

GLP compliance:

no

Type of method:

pycnometer method

Specific details on test material used for the study:

- Name of test material:1-(1-naphthyl)ethanone
- Molecular formula: C12 H10 O
- Molecular weight: 170.21 g/mol
- Smiles notation: c12c(cccc1C(C)=O)cccc2
- InChl: 1S/C12H10O/c1-9(13)11-8-4-6-10-5-2-3-7-12(10)11/h2-8H,1H3
- Substance type: Organic
- Physical state: Liquid

Key result

Type:

density

Density:

1.114 g/cm³

Temp.:

20 °C

Remarks on result:

other: pressure=972.3 hPa.

Method Details		Observed Values
		1st Observation	2nd Observation
Guideline	OECD 109
Method	IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision)
Principle of Method	Determination of the mass at a given temperature of a volume of the material contained in a density bottle (pycnometer) and determination of the volume of the latter by determining the mass of the corresponding volume of water at the same temperature. The density is obtained by dividing the mass of material by its volume.
Test temperature	(°C)	20 °C	20.0°C
Atmospheric pressure	(hPa)	972.3	972.3
Weight of empty dry pyknometer(X)	g	29.268	31.056
Weight of pyknometer + test item (Y)	g	84.761	87.147
Apparent mass of test item (M1)	(M1 = Y - X) g	55.493	56.091
Weight of pyknometer + water (Z)	g	78.951	81.317
Apparent mass of water (M2)	(M2 = Z - X) g	49.683	50.261
Buoyancy correction (A)	A = (*ρat × M2)	0.058	0.0587
(WA-WB)	g/cm³ (ρtw)	0.9982	0.9982

 

CALCULATIONS:

Density =(M1+A)  X ρtw

                  (M2+A)

1st calculated density	2nd calculated density
55.551 ____________ X 0.9982 = 1.1148 g/cm3 g/cm³ 49.741	56.1497 ____________ X 0.9982 = 1.1139 g/cm3 g/cm³ 50.3197
Average density	= 1.1144 g/cm³

Conclusions:

The density of substance 1-(1-naphthyl)ethanone (CAS No. 941-98-0)was determined following OECD Guideline 109 and according to the IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision) using glass pyknometer .The mean density of substance 1-(1-naphthyl)ethanone was determined to be 1.1144g/cm³ at 20°C and 972.3 hPa.

Executive summary:

The density of substance 1-(1-naphthyl)ethanone (CAS No. 941-98-0)was determined following OECD Guideline 109 and according to the IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision) using glass pyknometer .The mean density of substance 1-(1-naphthyl)ethanone was determined to be 1.1144 g/cm³ at 20°C and 972.3 hPa.

Description of key information

The density of substance 1-(1-naphthyl)ethanone (CAS No. 941-98-0)was determined following OECD Guideline 109 and according to the IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision) using glass pyknometer .The mean density of substance 1-(1-naphthyl)ethanone was determined to be 1.1144g/cm³ at 20°C and 972.3 hPa.

Key value for chemical safety assessment

Relative density at 20C:

1.12

Additional information

The density of substance 1-(1-naphthyl)ethanone (CAS No. 941-98-0)was determined following OECD Guideline 109 and according to the IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision) using glass pyknometer .The mean density of substance 1-(1-naphthyl)ethanone was determined to be 1.1144g/cm³ at 20°C and 972.3 hPa.

Other supporting from various reliable sources such as authoritative database and handbooks suggests that the density of chemical 1-(1-naphthyl)ethanone was reported to be in the range of 1.117 g/cm3 to 1.1338 g/cm3 ,and the selected key study value lies in the range as mentioned above.

As the data from lab has K1 reliability and the test was performed using OECD guidelines which has the value of density as 1.1144 g/cm3 at 20 degree C,thus considered as key study.