Iron hydroxide oxide yellow

Nanomaterial dustiness

Administrative data

Endpoint:

nanomaterial dustiness

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1990

Report date:

1990

Materials and methods

Test guideline

Qualifier:

no guideline followed

Principles of method if other than guideline:

The dustiness of the sample was tested by a Heubach dustmeter (airflow 20L/min). Two determinations with 100 g of the sample and five successive measuremnts of the filters were prepared.

GLP compliance:

no

Type of method:

rotating cylinder

Remarks:

Heubach dustmeter

Test material

Test material information

1

Reference substance name:

Iron hydroxide oxide yellow

EC Number:

257-098-5

EC Name:

Iron hydroxide oxide yellow

Cas Number:

51274-00-1

Molecular formula:

Fe(OH)O

IUPAC Name:

Iron hydroxide oxide

Test material form:

solid: nanoform

Data gathering

Instruments:

Heubach dustmeter Typ 1 (horizontal set-up)
sample mass: 100 g pigment
air flow: 20 L/min
air mass: 100 L
two determinations with five succesive measurements of the filters

Results and discussion

Dustiness index

Mean:

0.46 mg/kg

St. dev.:

0.333 mg/kg

Remarks on result:

other: n=10

Any other information on results incl. tables

initial weight: 100 g, airflow 20 L/min

Sample	Determination	1st measurement	2nd measurement	3rd measurement	4th measurement	5th measurement	mean
Bayferrox Rot 110	1	9 mg	7 mg	0 mg	4 mg	2 mg	4 mg
	2	9 mg	2 mg	2 mg	8 mg	3 mg	5 mg
mean	1 - 2	9 mg	5 mg	4 mg	6 mg	3 mg	4.6 mg

Applicant's summary and conclusion

Conclusions:

The pigment Bayferrox Gelb 915 has a dustiness of 0.46 +/- 0.333 mg/kg.