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Density

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Reference
Endpoint:
density, other
Remarks:
density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
16-03-2017 – 16-03-2017
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:
OECD Guideline 109 (Density of Liquids and Solids)
Principles of method if other than guideline:
The density of Aluminium, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-pyrazole-3-carboxylic acid complex was determined by OECD guideline 109 and according to the method recommended in the International Pharmacopoeia, fourth Edition, 2014
GLP compliance:
not specified
Type of method:
other: By method recommended in the International Pharmacopoeia, fourth Edition, 2014
Specific details on test material used for the study:
- Name of test material: Aluminium, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-pyrazole-3-carboxylic acid complex- IUPAC name: aluminum tris(4-{[3-carboxy-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazol-4-yl]diazenyl}benzenesulfonate)- Molecular formula: C48H33AlN12O27S6- Molecular weight: 1429.19 g/mole- Smiles : C1=CC(=CC=C1N=NC2C(=NN(C2=O)C3=CC=C(C=C3)S(=O)(=O)O)C(=O)O)S(=O)(=O)[O-].C1=CC(=CC=C1N=NC2C(=NN(C2=O)C3=CC=C(C=C3)S(=O)(=O)O)C(=O)O)S(=O)(=O)[O-].C1=CC(=CC=C1N=NC2C(=NN(C2=O)C3=CC=C(C=C3)S(=O)(=O)O)C(=O)O)S(=O)(=O)[O-].[Al+3]- Inchl: 1S/3C16H12N4O9S2.Al/c3*21-15-13(18-17-9-1-5-11(6-2-9)30(24,25)26)14(16(22)23)19-20(15)10-3-7-12(8-4-10)31(27,28)29;/h3*1-8,13H,(H,22,23)(H,24,25,26)(H,27,28,29);/q;;;+3/p-3- Substance type: Organic- Physical state: Solid Red powder
Key result
Type:
pour density
Density:
0.283 g/cm³
Temp.:
26.8 °C
Remarks on result:
other: at 977.9 hPa
Key result
Type:
tap density
Density:
0.341 g/cm³
Temp.:
26.8 °C
Remarks on result:
other: at 977.9 hPa

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)

-

26.9°C

26.7°C

Atmospheric

pressure (in hPa)

-

978.1

977.7

Weight of test

item(m)

 

 

20.108

20.105

Volume of measuring cylinder; readability in g

 

250 ml; 2 ml

250 ml; 2 ml

Volume of test item

without tapping (V)

 

72

70

Volume of test item

after tapping ( V1)

After 10 tapping

64

62

 

After 50 tapping

60

58

 

After 100 tapping

60

58

 

After 250 tapping

-

-

 

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

 

0.2792

0.2872

0.2832

Tap density of test Item (g/cm³)

= m / V1

 

0.3351

0.3466

0.3408

 

Conclusions:
The mean pour density and tapped density of Aluminium, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-pyrazole-3-carboxylic acid complex (CAS No. 12225-21-7) is determined to be 0.2832 g/cm³ and 0.3408 g/cm³ at 26.8°C and 977.9 hPa.
Executive summary:

The density of test item Aluminium, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-pyrazole-3-carboxylic acid complex (CAS No. 12225-21-7) 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 bulk density appratus.

The mean pour density and tapped density of test item is determined to be 0.2832 g/cm³ and 0.3408 g/cm³ at 26.8°C and 977.9 hPa.

Description of key information

The mean pour density and tapped density of Aluminium, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]- 1H-pyrazole-3-carboxylic acid complex (CAS No. 12225-21-7) is determined to be 0.2832 g/cm³ and 0.3408 g/cm³ at 26.8°C and 977.9 hPa.

Key value for chemical safety assessment

Relative density at 20C:
0.341

Additional information

The density of test item Aluminium, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-pyrazole-3-carboxylic acid complex (CAS No. 12225-21-7) 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 bulk density appratus.

The mean pour density and tapped density of test item is determined to be 0.2832 g/cm³ and 0.3408 g/cm³ at 26.8°C and 977.9 hPa.

Other supporting data from another report, determined the bulk density of aluminium,4, 5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl) azo]-1H-pyrazole-3-carboxylic acid complex by the mass by volume method as 0.353 g/cm3 at room temperature of 28 deg C.