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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Diss Factsheets

Administrative data

Endpoint:
nanomaterial dustiness
Type of information:
experimental study
Adequacy of study:
key study
Study period:
April - June 2021
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2021
Report date:
2021

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EN 15051-2 (Workplace exposure. Measurement of the dustiness of bulk materials - Rotating drum method)
GLP compliance:
no
Type of method:
rotating cylinder

Test material

Constituent 1
Chemical structure
Reference substance name:
Xanthylium, 3,6-bis(ethylamino)-9-[2-(methoxycarbonyl)phenyl]-2,7-dimethyl-, molybdatesilicate
EC Number:
278-270-6
EC Name:
Xanthylium, 3,6-bis(ethylamino)-9-[2-(methoxycarbonyl)phenyl]-2,7-dimethyl-, molybdatesilicate
Cas Number:
75627-12-2
Molecular formula:
C54H58N4O6.MoO4 + C54H58N4O6.SiO3
IUPAC Name:
3,6-bis(ethylamino)-9-[2-(methoxycarbonyl)phenyl]-2,7-dimethyl-10λ⁴-xanthen-10-ylium dioxomolybdenumbis(olate) silicate
Test material form:
solid: nanoform, no surface treatment
Reference material / nanomaterial and sample identification number
Reference
Reference substance name:
Unnamed
IUPAC name:
3,6-bis(ethylamino)-9-[2-(methoxycarbonyl)phenyl]-2,7-dimethyl-10λ⁴-xanthen-10-ylium dioxomolybdenumbis(olate) silicate
Inventory number:
InventoryMultipleMappingImpl [inventoryEntryValue=EC 278-270-6]
CAS number:
75627-12-2
Identifier:
IUPAC name
Identity:
methyl 2-[3,6-bis(ethylamino)-2,7-dimethyl-1H-xanthen-9-yl]benzoate
Identifier:
other: Molecular formula
Identity:
C27H30N2O3
Identity:
methyl 2-[3,6-bis(ethylamino)-2,7-dimethyl-1H-xanthen-9-yl]benzoate
Molecular formula:
C54H58N4O6.MoO4 + C54H58N4O6.SiO3
Molecular weight:
>= 935 - <= 1 019
SMILES notation:
not applicable
InChl:
not applicable

Results and discussion

Dustiness index
Key result
Remarks on result:
not determinable because of methodological limitations
Remarks:
EN15051-2 does not allow for the determination on the dustiness index, only the values for the inhalable, the thoracic and the respirable fraction. EN17199, only standard giving the dustiness index value not yet commercially available.

Any other information on results incl. tables

Inhalable fraction: 5003 mg/kg => High


Thoracic fraction: 648 mg/kg => Moderate


Respirable fraction: 73 mg/kg => Moderate

Applicant's summary and conclusion

Conclusions:
The dustiness potential of Pigment Red 81:2 was determined using standard EN 15051-2. The substance exhibited a high dustiness potential for the inhalable fraction 5003 mg kg-1. The thoracic and respirable fractions are both classified as moderate with a dustiness potential of 648 mg kg-1 for the thoracic fraction and 73 mg kg-1 for the respirable fraction.
Executive summary:

The dustiness potential of Pigment Red 81:2 was determined using standard EN 15051-2. The substance exhibited a high dustiness potential for the inhalable fraction 5003 mg kg-1. The thoracic and respirable fractions are both classified as moderate with a dustiness potential of 648 mg kg-1 for the thoracic fraction and 73 mg kg-1 for the respirable fraction.