boron nitride (hexagonal)

Additional physico-chemical information

Administrative data

Endpoint:

other: dustiness

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2012

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Study performed according to DIN Norm.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2012

Report date:

2012

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

other: EN 15051 and DIN 33897, Teil 2

Deviations:

no

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

boranylidyneamine

EC Number:

701-292-9

Cas Number:

10043-11-5

Molecular formula:

BN

IUPAC Name:

boranylidyneamine

Test material form:

solid: particulate/powder

Details on test material:

- Name of test material (as cited in study report): Boronid
- Substance type: inorganic
- Physical state: solid powder

Results and discussion

Results:

Hexagonal boron nitride powders with low particle sizes have been tested for their potential to produce inhalable and respirable dust during handling by DIN 33987-2 and EN 15051-B. Tested hBN powders have been shown to contain up to 15.8 mg/kg respirable dust and up to 419 mg/kg inhalable dust. According to these results, the powders can be described to be of low to moderate dustiness.

Any other information on results incl. tables

	DIN 33987-2		EN 15051- B
	A value SA	E value SE	A value WR	E value Wi
	mg/kg
hBN powder 1	3.61	96	166	4399
hBN powder 2	15.8	419	453	12005

Applicant's summary and conclusion

Conclusions:

hBN powders with low particle size have been shown to contain up to 15.8 mg/kg respirable dust and up to 419 mg/kg inhalable dust. According to these results, these powders can be described to be of low to moderate dustiness.