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Density

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Reference
Endpoint:
density, other
Type of information:
experimental study
Adequacy of study:
key study
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.
Reference:
Composition 1
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Principles of method if other than guideline:
The density of 4-[(4-amino-m-tolyl)(4-imino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]-o-toluidine monohydrochloride was determined following OECD guideline 109 and according to the method recommended in the International Pharmacopoeia, fourth Edition, 2014.
GLP compliance:
not specified
Type of method:
other: Pour density and tapped density of powders” recommended in The International Pharmacopoeia, Fourth Edition, 2014
Test material information:
Composition 1
Specific details on test material used for the study:
- Name of test material: C.I. Basic Violet 2 / (4-[(4-amino-m-tolyl)(4-imino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]-o-toluidine monohydrochloride)
- IUPAC name: 4-[(4-amino-3-methylphenyl)(4-imino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]-2-methylaniline hydrochloride
- Molecular formula: C22H24ClN3
- Molecular weight: 365.906 g/mole
- Smiles :C(\c1cc(c(N)cc1)C)(c1cc(c(N)cc1)C)=C1\C=C(C(=[NH+])C=C1)C.[ClH-]
- Inchl: 1S/C22H23N3.ClH/c1-13-10-16(4-7-19(13)23)22(17-5-8-20(24)14(2)11-17)18-6-9-21(25)15(3)12-18;/h4-12,23H,24-25H2,1-3H3;1H
- Substance type: Organic
- Physical state: Dark green powder
Key result
Type:
pour density
Density:
0.541 g/cm³
Temp.:
24.4 °C
Remarks on result:
other: At 969.4 hPa pressure
Key result
Type:
tap density
Density:
0.69 g/cm³
Temp.:
24.4 °C
Remarks on result:
other: At 969.4 hPa pressure

TEST ITEM DESCRIPTION AND RESULTS

FOR SOLIDS:

By Pour Density and Tapped Density Method:

Method Details

Observations

Remarks if, any

Guideline

OECD 109

1st

Reading

2nd Reading

 

 

Method

Test methods: Pour density and tapped density of powders recommended in

The International

Pharmacopoeia, Fourth

Edition, 2014

 

 

Principle of method

Pour Density:It is the ratio of known weight of test item and its volume in graduated glass cylinder.

Tap Density:It is the

difference between the

volume of test item

measured before & after

tapping in the graduated

glass cylinder.

 

 

Test temperature (°C)

-

24.3°C

24.6°C

Atmospheric

pressure (in hPa)

-

970.5

968.4

Weight of test

item(m)

 

 

20.020

20.017

Volume of measuring cylinder; readability in g

 

50ml; 1 ml

50 ml; 1 ml

Volume of test item

without tapping (V)

 

37

37

Volume of test item

after tapping ( V1)

After 10 tapping

32

32

 

After 50 tapping

30

30

 

After 100 tapping

29

29

 

After 250 tapping

29

29

 

After 500 tapping

-

-

 

After 750 tapping

-

-

*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.

 

 

 

 

FOR SOLIDS:

By Pour Density and Tapped Density Method:

 

 

Parameters

 

Details

Calculated values

Average

Density

1st

Calculation

2nd

Calculation

Pour Density of test Item (g/cm³)

= m / V

 

0.5410

0.5410

0.5410

Tap density of test Item (g/cm³)

= m / V1

 

0.6903

0.6902

0.6902

 

 

Conclusions:
The pour density and tapped density of 4-[(4-amino-m-tolyl)(4-imino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]-o-toluidine monohydrochloride (CAS No. 3248-91-7) was determined to be 0.5410 g/cm³ and 0.6902 g/cm³ at 24.4 °C and 969.4 hPa.
Executive summary:

The density of test item 4-[(4-amino-m-tolyl)(4-imino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]-o-toluidine monohydrochloride (CAS No. 3248-91-7) was determined following OECD Guideline 109 and according to the Test methods: Pour density and tapped density of powders” recommended in The International Pharmacopoeia, Fourth Edition, 2014 using graduated measuring cylinder. The pour density and tapped density of test item was determined to be 0.5410 g/cm³ and 0.6902 g/cm³ at 24.4 °C and 969.4 hPa.

Description of key information

The pour density and tapped density of 4-[(4-amino-m-tolyl)(4-imino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]-o-toluidine monohydrochloride (CAS No. 3248-91-7) was determined to be 0.5410 g/cm³ and 0.6902 g/cm³ at 24.4 °C and 969.4 hPa.

Key value for chemical safety assessment

Relative density at 20C:
0.692

Additional information

The density of test item 4-[(4-amino-m-tolyl)(4-imino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]-o-toluidine monohydrochloride (CAS No. 3248-91-7) was determined following OECD Guideline 109 and according to the Test methods: Pour density and tapped density of powders” recommended in The International Pharmacopoeia, Fourth Edition, 2014 using graduated measuring cylinder. The pour density and tapped density of test item was determined to be 0.5410 g/cm³ and 0.6902 g/cm³ at 24.4 °C and 969.4 hPa.