N-(2-chloroethyl)-4-[(2,6-dichloro-4-nitrophenyl)azo]-N-ethyl-m-toluidine

Density

Link to relevant study record(s)

Reference

Endpoint:

bulk density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1 day

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

accepted calculation method

Principles of method if other than guideline:

Place a 50 ml plastic blue scoop on a 100 ml beaker on the analytical balance and tare to zero.
Fill the scoop with the dye powder and remove excess with a flat-ended spatula.
Replace on the balance and reweigh (weight of powder), repeat this measurement another two times to obtain an averaged result.
Calculation:
Bulk Density (g/cm3) = Weight of powder (Grams)
50

GLP compliance:

no

Type of method:

pour and tap (for solids)

Specific details on test material used for the study:

The batch of Disperse Brown 27 (4852-1501) tested was a brown powder with a purity of 99.7 %

Key result

Type:

bulk density

Density:

ca. 0.284 g/cm³

Temp.:

22 °C

Type:

relative density

Density:

ca. 0.284 other: Unitless

Temp.:

20 °C

Description of key information

The bulk density of Disperse Brown 27 is 0.284 kg/L., the result is given as density in unit kg/L which is equivalent to g/cm³. The relative density was calculated according to the following definition.The relative density D₂₀of solids or liquids is the ratio between the mass of the substance, determined at 20°C, and the mass of the same volume of water, determined at 4°C. At this temperature the density of water is 0.999975 g/cm³.

To convert the density to relative density the following formula is used:

D₂₀⁴= pSubstance(20°C) / pWater(4°C)

Key value for chemical safety assessment

Relative density at 20C:

0.284