N,N',N'',N'''-tetrakis(4,6-bis(butyl-(N-methyl-2,2,6,6-tetramethylpiperidin-4-yl)amino)triazin-2-yl)-4,7-diazadecane-1,10-diamine

Particle size distribution (Granulometry)

Administrative data

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Test conducted according to Sieving method and ECHA Guidance.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2011

Report date:

2011

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

other: Sieving method

Deviations:

not specified

Principles of method if other than guideline:

Sieving method is measuring devices used to determine the size and size distribution of particles in a material sample using wire mesh of different opening to separate particles of different sizes. Test sieving usually consist of wire mesh held in a frame which is round and made from stainless steel. A typical sieve analysis involves a nested column of sieves with wire mesh cloth (screen).

A representative weighed sample is poured into the top sieve which has the largest screen openings. Each lower sieve in the column has smaller opening than the one above. After shaking for some fixed amount of time, is complete the material on each sieve is weighed. The weight of the sample of each sieve is then divided by the total weight to give a percentage retained on each sieve.

The size of the average particles on each sieve then being analysis to get the cut-point or specific size range captured on screen.

GLP compliance:

no

Type of distribution:

volumetric distribution

Test material

Test material information

Constituent 1

Reference substance name:

1,3,5-Triazine-2,4,6-triamine, N2,N2'-1,2-ethanediylbis[N2-[3-[[4,6-bis[butyl(1,2,2,6,6- pentamethyl-4-piperidinyl)amino]-1,3,5-triazin-2-yl]amino]propyl]-N4,N6-dibutyl-N4,N6-bis(1,2,2,6,6-pentamethyl-4-piperidinyl)-

IUPAC Name:

1,3,5-Triazine-2,4,6-triamine, N2,N2'-1,2-ethanediylbis[N2-[3-[[4,6-bis[butyl(1,2,2,6,6- pentamethyl-4-piperidinyl)amino]-1,3,5-triazin-2-yl]amino]propyl]-N4,N6-dibutyl-N4,N6-bis(1,2,2,6,6-pentamethyl-4-piperidinyl)-

Constituent 2

Reference substance name:

N,N',N'',N'''-tetrakis(4,6-bis(butyl-(N-methyl-2,2,6,6-tetramethylpiperidin-4-yl)amino)triazin-2-yl)-4,7-diazadecane-1,10-diamine

EC Number:

401-990-0

EC Name:

N,N',N'',N'''-tetrakis(4,6-bis(butyl-(N-methyl-2,2,6,6-tetramethylpiperidin-4-yl)amino)triazin-2-yl)-4,7-diazadecane-1,10-diamine

Cas Number:

106990-43-6

Molecular formula:

C132H250N32

IUPAC Name:

N2-[2-({4,6-bis[butyl(1,2,2,6,6-pentamethylpiperidin-4-yl)amino]-1,3,5-triazin-2-yl}[3-({4,6-bis[butyl(1,2,2,6,6-pentamethylpiperidin-4-yl)amino]-1,3,5-triazin-2-yl}amino)propyl]amino)ethyl]-N2-[3-({4,6-bis[butyl(1,2,2,6,6-pentamethylpiperidin-4-yl)amino]-1,3,5-triazin-2-yl}amino)propyl]-N4,N6-dibutyl-N4,N6-bis(1,2,2,6,6-pentamethylpiperidin-4-yl)-1,3,5-triazine-2,4,6-triamine

Test material form:

solid: particulate/powder

Remarks:

migrated information: powder

Results and discussion

Particle size

Percentile:

D50

Mean:

1 420 µm

Remarks on result:

other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.

Particle size distribution at different passages

Particle size distribution at different passages 1

No.:

#1

Size:

> 2 000 µm

Distribution:

23.38 %

Particle size distribution at different passages 2

No.:

#2

Size:

> 840 - < 2 000 µm

Distribution:

66.22 %

Particle size distribution at different passages 3

No.:

#3

Size:

< 840 µm

Distribution:

10.4 %

Applicant's summary and conclusion

Conclusions:

Mass median diameter: 1420 μm
- 23.38 % greater than 2000 microns
- 66.22 % greater than 840 microns but less than 2000 microns
- 10.4 % smaller than 840 microns