Methyltrioctylammonium chloride

Density

Link to relevant study record(s)

Reference

Endpoint:

density, other

Remarks:

Density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

29-12-2017 – 29-12-2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

Experimental test result performed using standard OECD test guidelines

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 Methyltrioctylammonium chloride (CAS No. 5137-55-3) 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:

not specified

Type of method:

pycnometer method

Specific details on test material used for the study:

- Name of test material: Methyltrioctylammonium chloride
- IUPAC name: Methyltrioctyl ammonium chloride
- Molecular formula: C25H54ClN
- Molecular weight: 404.162 g/mole
- Smiles :[N+](CCCCCCCC)(CCCCCCCC)(CCCCCCCC)C.[ClH-]
- Inchl: 1S/C25H54N.ClH/c1-5-8-11-14-17-20-23-26(4,24-21-18-15-12-9-6-2)25-22-19-16-13-10-7-3;/h5-25H2,1-4H3;1H/q+1;/p-1
- Substance type: Organic
- Physical state: Viscous liquid (yellow to yellowish brown)
- Purity: not less than 90.0%

Key result

Type:

density

Density:

0.902 g/cm³

Temp.:

20 °C

Remarks on result:

other: at 978.8 hPa

TEST ITEM DESCRIPTION AND RESULTS

FOR LIQUIDS:

By Pyknometer Method:

Method Details		Observations		Remarks if, any
Guideline	OECD 109	1st Observation	2nd observation
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 (pyknometer) 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)	°C	20°C	20°C
Atmospheric pressure (in hPa)	hPa	980.0	977.6
Weight of empty dry Pyknometer(X)	g	29.095	31.109
Weight of pyknometer + test item (Y)	g	73.842	75.792
Apparent mass of test item (M1)	(M1 = Y - X)g	44.747	44.683
Weight of pyknometer + water (Z)	g	78.599	80.605
Apparent mass of water (M2)	(M2 = Z - X) g	49.504	49.496
Buoyancy correction (A)	A = (*ρat × M2)	0.0578	0.0578
Density of water** at test temperature	g/cm³ (ρtw)	0.9982	0.9982

*ρat=density of air at 27°C and 760 mm Hg pressure=0.001168 g/cm³

**Density of water referred from the Table 1 of the was method.

 

 CALCULATIONS:

FOR LIQUIDS

Density = (M1+A) X ρtw

(M2+A)

1st calculated density	2nd calculated density
44.8048 ____________ X 0.9982 = 0.9023 g/cm³ 49.5618	44.7408 ____________ X 0.9982 = 0.9012 g/cm³ 49.5538
Average density	= 0.9017 g/cm³

 

 

 

Conclusions:

The mean density of Methyltrioctylammonium chloride (CAS No. 5137-55-3) was found to be 0.9017 g/cm³at 20°C and 978.8 hPa.

Executive summary:

The density of test item Methyltrioctylammonium chloride (CAS No. 5137-55-3)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 test item was found to be 0.9017 g/cm³at 20°C and 978.8 hPa.

Description of key information

The mean density of Methyltrioctylammonium chloride (CAS No. 5137-55-3) was found to be 0.9017 g/cm³at 20°C and 978.8 hPa.

Key value for chemical safety assessment

Relative density at 20C:

0.902

Additional information

The density of test item Methyltrioctylammonium chloride (CAS No. 5137-55-3)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 test item was found to be 0.9017 g/cm³at 20°C and 978.8 hPa.

Other supporting data from handbooks and authoritative database Scifinder, also determined the density of Methyltrioctylammonium chloride as 0.884 g/cm3 at 25 °C, closer to the selected key study.