Brief Profile

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Please be aware that the REACH registration parts of this Brief Profile are no longer maintained; they remain frozen as of 19th May 2023. All other data parts (substance identity, C&L, key regulatory lists etc. are up to date).

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Brief Profile

The Brief Profile summarizes the non-confidential data on substances as it is held in the databases of the European Chemicals Agency (ECHA), including data provided by third parties. The Brief Profile is automatically generated; note that it does not currently distinguish between harmonised classification and minimum classification; information requirements under different legislative frameworks may therefore not be fully up to date or complete. For accuracy reasons, substance manufacturers and imports have the responsibility to consult official sources, e.g. the electronic edition of the Official Journal of the European Union.
This Brief Profile is covered by the ECHA Legal Notice.

Substance Description

Substance identity

EC / List no.:
212-338-8
CAS no.:
791-28-6
Index number:
Molecular formula:
C18H15OP
SMILES:
O=P(C1=CC=CC=C1)(C1=CC=CC=C1)C1=CC=CC=C1
InChI:
InChI=1S/C18H15OP/c19-20(16-10-4-1-5-11-16,17-12-6-2-7-13-17)18-14-8-3-9-15-18/h1-15H
Type of substance:
Mono constituent substance
Origin:
Organic
Registered compositions:
4
Of which contain:
0 impurities relevant for classification
0 additives relevant for classification
Substance Listed:
EINECS (European INventory of Existing Commercial chemical Substances) List

Hazard classification & labelling

Warning! According to the classification provided by companies to ECHA in REACH registrations this substance is harmful if swallowed and is harmful to aquatic life with long lasting effects.

Additionally, the classification provided by companies to ECHA in CLP notifications identifies that this substance causes serious eye irritation, causes skin irritation and may cause respiratory irritation.

Breakdown of all 227 C&L notifications submitted to ECHA

Acute Tox. 4 H302
Aquatic Chronic 3 H412
Eye Irrit. 2 H319
Skin Irrit. 2 H315
STOT SE 3 H335
Not Classified
Aquatic Chronic 2 H411
Acute Tox. 4 H303
Acute Tox. 4 H312
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

https://echa.europa.eu/o/diss-blank-theme/images/cnl/graph/tick.png Harmonised Classification

https://echa.europa.eu/o/diss-blank-theme/images/cnl/graph/Reach.png REACH registration dossiers notifications

https://echa.europa.eu/o/diss-blank-theme/images/cnl/graph/CLP.png CLP notifications

Properties of concern

Regulatory context

Registration, Evaluation, Authorisation & Restriction of Chemicals (REACH)

Registration
Pre-registration:
Substance pre-registered under REACH.
Registration:
This substance has 2 active registrations under REACH, 2 Joint Submission(s) and 0 Individual Submission(s).
Please see Registrants/Suppliers details.
Evaluation
Dossier Evaluation:
Substance Evaluation:
Authorisation
Candidate List:
Annex XIV (Authorisation List):
Restriction
Annex XVII (Restriction List):

Persistent Organic Pollutants Regulation (POPs)

List of substances subject to the POPs Regulation:
List of substances proposed as POPs:

Classification Labelling & Packaging (CLP)

Harmonised C&L:
Seveso Annex I:
Notified C&L:
Classification & Labelling has been notified by industry to ECHA for this substance.

Biocidal Products Regulation (BPR)

Active Substance:
Biocidal Products:

Prior Informed Consent (PIC)

Annex I:
Annex V:

European Union Observatory for Nanomaterials (EUON)

EUON:

About this substance

This substance is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 1 to < 10 tonnes per annum.

This substance is used in articles, at industrial sites and in manufacturing.

ECHA has no public registered data indicating whether or in which chemical products the substance might be used.

ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment.

This substance is used in the following activities or processes at workplace: manual maintenance (cleaning and repair) of machinery.

Other release to the environment of this substance is likely to occur from: indoor use in long-life materials with low release rate (e.g. flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment).

This substance can be found in complex articles, with no release intended: machinery, mechanical appliances and electrical/electronic products (e.g. computers, cameras, lamps, refrigerators, washing machines).

ECHA has no public registered data indicating whether or in which chemical products the substance might be used.

ECHA has no public registered data on the types of manufacture using this substance.

ECHA has no public registered data on the use of this substance in activities or processes at the workplace.

ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment.

ECHA has no public registered data indicating whether or in which chemical products the substance might be used.

ECHA has no public registered data on the use of this substance in activities or processes at the workplace.

ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment.

This substance is used in the following products: polymers.

This substance is used for the manufacture of: chemicals and electrical, electronic and optical equipment.

This substance is used in the following activities or processes at workplace: transfer of chemicals, closed, continuous processes with occasional controlled exposure, transfer of substance into small containers, laboratory work and manual maintenance (cleaning and repair) of machinery.

Release to the environment of this substance can occur from industrial use: in the production of articles.

This substance is used in the following activities or processes at workplace: closed, continuous processes with occasional controlled exposure and transfer of chemicals at dedicated facilities.

ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment.

Precautions for using this substance have been recommended by its registrants under REACH, as follows:

Prevention statements

When handling this substance: avoid release to the environment.

Guidance on the safe use of the substance provided by manufacturers and importers of this substance.

Registrants/suppliers

  • BASF SE, Carl-Bosch-Str. 38 67056 Ludwigshafen am Rhein Rheinland-Pfalz Germany
  • Resonac Europe GmbH (IMP), Daimlerstrasse 19 86368 Gersthofen Germany

Substance names and other identifiers

Triphenylphosphine oxide
EC Inventory, REACH pre-registration
Triphenylphosphine oxide
REACH pre-registration, Other
(diphenylphosphoroso)benzene
C&L Inventory, Other
diphenylphosphorylbenzene
C&L Inventory, Other
Oxotriphenyl-lambda5-phosphane
Registration dossier
TPPO
Registration dossier
Triphenylphosphine Oxide
C&L Inventory
triphenylphosphine oxide
C&L Inventory, Registration dossier
Triphenylphosphinoxid
C&L Inventory
Phosphine oxide, triphenyl-
Registration dossier
Triphenyl phosphorus oxide
Registration dossier
Triphenylphosphine monoxide
Registration dossier
Triphenylphosphine oxide
C&L Inventory
47027-44-1
CAS number
Other
791-28-6
CAS number
EC Inventory, C&L Inventory, Registration dossier, REACH pre-registration, Other

Scientific properties

Physical and chemical properties

This section provides physicochemical information compiled from all automatically processable data from REACH registration dossiers that is available to ECHA at the time of generation. The quality and correctness of the information remains the responsibility of the data submitter. The Agency thus cannot guarantee the correctness of the information displayed.

Appearance/physical state / colour

Study results
  • 2 studies submitted
  • 1 study processed
C Physical state at 20°C and 1013 hPa
Solid (100%) [1]
C Form
Solid (100%) [1]
C Substance type
Organic (100%) [1]

Type of Study provided
Studies with data
Key study 1
Supporting study 1
Weight of evidence
Other
Data waiving
no waivers
C Summaries
  • 1 summary submitted
  • 1 summary processed
Physical state at 20°C and 1013 hPa
Solid (100%)
Colour
white (50%), yellow (50%)
Colour Intensity
light (100%)

Melting/freezing point

Study results
  • 4 studies submitted
  • 2 studies processed
R Melting / freezing point
155.8 - 157.4 °C [2]

Type of Study provided
Studies with data
Key study 2
Supporting study 2
Weight of evidence
Other
Data waiving
no waivers
R Summaries
  • 1 summary submitted
  • 1 summary processed
Melting / freezing point at 101 325 Pa
155.8 °C

Boiling point

Study results
  • 4 studies submitted
  • 2 studies processed
R Boiling point
360 °C [2]

Type of Study provided
Studies with data
Key study 2
Supporting study 2
Weight of evidence
Other
Data waiving
no waivers
R Summaries
  • 1 summary submitted
  • 1 summary processed
Boiling point at 101 325 Pa
360 °C

Density

Study results
  • 4 studies submitted
  • 2 studies processed
R Density
1.24 g/cm³ @ 25 °C [2]

Type of Study provided
Studies with data
Key study 2
Supporting study 2
Weight of evidence
Other
Data waiving
no waivers
R Summaries
  • 1 summary submitted
  • 1 summary processed
Relative density at 20°C
1.24

Vapour pressure

Study results
  • 4 studies submitted
  • 2 studies processed
R Vapour pressure
0 Pa @ 25 °C [2]

Type of Study provided
Studies with data
Key study 2
Supporting study 2
Weight of evidence
Other
Data waiving
no waivers
R Summaries
  • 1 summary submitted
  • 1 summary processed
Vapour pressure
0 Pa @ 25 °C

Partition coefficient

Study results
  • 4 studies submitted
  • 2 studies processed
R Log Pow
2.8 [2]

Type of Study provided
Studies with data
Key study 2
Supporting study 2
Weight of evidence
Other
Data waiving
no waivers
R Summaries
  • 1 summary submitted
  • 1 summary processed
Log Kow (Log Pow)
2.8

Water solubility

Study results
  • 2 studies submitted
  • 1 study processed
R Water solubility (mass/vol.)
369 mg/L @ 20 °C and pH 7 [1]

Type of Study provided
Studies with data
Key study 1
Supporting study
Weight of evidence
Other 1
Data waiving
no waivers
R Summaries
  • 1 summary submitted
  • 1 summary processed
Water solubility
369 mg/L @ 20 °C

Solubility in organic solvents / fat solubility

Data not provided by the registrant

Surface tension

Study results
  • 2 studies submitted
  • 0 studies processed

No automatically processable data submitted

Type of Study provided
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
Not feasible
Sci. unjustified 1
Exposure cons.
Other 1
Summaries
  • 1 summary submitted
  • 0 summaries processed

No automatically processable data submitted

Flash point

Study results
  • 2 studies submitted
  • 0 studies processed

No automatically processable data submitted

Type of Study provided
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
Not feasible
Sci. unjustified 2
Exposure cons.
Other
Summaries
  • 1 summary submitted
  • 0 summaries processed

No automatically processable data submitted

Auto flammability

Study results
  • 2 studies submitted
  • 0 studies processed

No automatically processable data submitted

Type of Study provided
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
Not feasible
Sci. unjustified 1
Exposure cons.
Other 1
Summaries
  • 1 summary submitted
  • 0 summaries processed

No automatically processable data submitted

Flammability

Study results
  • 10 studies submitted
  • 0 studies processed

No automatically processable data submitted

Type of Study provided
Studies with data
Key study 1
Supporting study 1
Weight of evidence
Other
Data waiving
Not feasible 2
Sci. unjustified 6
Exposure cons.
Other
C Summaries
  • 1 summary submitted
  • 1 summary processed
Flammability
Not classified (100%)

Explosiveness

Study results
  • 2 studies submitted
  • 0 studies processed

No automatically processable data submitted

Type of Study provided
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
Not feasible
Sci. unjustified 1
Exposure cons.
Other 1
C Summaries
  • 1 summary submitted
  • 1 summary processed
Explosiveness
Non-explosive (100%)

Oxidising

Study results
  • 4 studies submitted
  • 0 studies processed

No automatically processable data submitted

Type of Study provided
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
Not feasible 2
Sci. unjustified 1
Exposure cons.
Other 1
C Summaries
  • 1 summary submitted
  • 1 summary processed
Oxidising
Non oxidising (100%)

Oxidation reduction potential

Data not provided by the registrant

pH

Data not provided by the registrant

Dissociation constant

Study results
  • 2 studies submitted
  • 0 studies processed

No automatically processable data submitted

Type of Study provided
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
Not feasible 1
Sci. unjustified 1
Exposure cons.
Other
Summaries
  • 0 summaries submitted
  • 0 summaries processed

No data available

Viscosity

Study results
  • 2 studies submitted
  • 0 studies processed

No automatically processable data submitted

Type of Study provided
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
Not feasible 2
Sci. unjustified
Exposure cons.
Other
Summaries
  • 0 summaries submitted
  • 0 summaries processed

No data available

Environmental fate and pathways

This section provides environmental fate and pathways information compiled from all automatically processable data from REACH registration dossiers that is available to ECHA at the time of generation. The quality and correctness of the information remains the responsibility of the data submitter. The Agency thus cannot guarantee the correctness of the information displayed.

Phototransformation in air

Study results
  • 1 study submitted
  • 1 study processed
R Dissipation half life (DT50)
65.82 h [1]

Type of Study provided
Studies with data
Key study 1
Supporting study
Weight of evidence
Other
Data waiving
no waivers
Summaries
  • 0 summaries submitted
  • 0 summaries processed

No data available

Hydrolysis

Data not provided by the registrant

Phototransformation in water

Data not provided by the registrant

Phototransformation in soil

Data not provided by the registrant

Biodegradation in water - screening tests

Study results
  • 2 studies submitted
  • 2 studies processed
C Interpretation of results
Under test conditions no biodegradation observed (100%) [2]

Type of Study provided
Studies with data
Key study 2
Supporting study
Weight of evidence
Other
Data waiving
no waivers
C Summaries
  • 1 summary submitted
  • 1 summary processed
Biodegradation in water
Under test conditions no biodegradation observed (100%)

Biodegradation in water & sediment - simulation tests

Data not provided by the registrant

Biodegradation in soil

Data not provided by the registrant

Bioaccumulation: aquatic / sediment

Data not provided by the registrant

Bioaccumulation: terrestrial

Data not provided by the registrant

Adsorption/desorption

Study results
  • 1 study submitted
  • 0 studies processed

No automatically processable data submitted

Type of Study provided
Studies with data
Key study 1
Supporting study
Weight of evidence
Other
Data waiving
no waivers
Summaries
  • 0 summaries submitted
  • 0 summaries processed

No data available

Henrys law constant (H)

Study results
  • 1 study submitted
  • 1 study processed
R H - (pressure) m³/mol
0 Pa m³/mol @ 25 °C [1]

Type of Study provided
Studies with data
Key study 1
Supporting study
Weight of evidence
Other
Data waiving
no waivers
Summaries
  • 0 summaries submitted
  • 0 summaries processed

No data available

Distribution modelling

Data not provided by the registrant

Ecotoxicological information

This section provides ecotoxicological information compiled from all automatically processable data from REACH registration dossiers that is available to ECHA at the time of generation. The quality and correctness of the information remains the responsibility of the data submitter. The Agency thus cannot guarantee the correctness of the information displayed.

Predicted No-Effect Concentration (PNEC)

Summaries
  • 1 summary submitted
  • 0 summaries processed

No automatically processable data submitted

Short–term toxicity to fish

Study results
  • 2 studies submitted
  • 1 study processed
P/RResults
LC50 (4 days) 46 - 100 mg/L [1]
LC0 (4 days) 21.5 mg/L [1]
LC100 (4 days) 100 mg/L [1]
NOEC (4 days) 21.5 mg/L [1]

Type of Study provided
Studies with data
Key study 1
Supporting study 1
Weight of evidence
Other
Data waiving
no waivers
Summaries
  • 0 summaries submitted
  • 0 summaries processed

No data available

Long–term toxicity to fish

Data not provided by the registrant

Short–term toxicity to aquatic invertebrates

Study results
  • 2 studies submitted
  • 2 studies processed
P/RResults
EC50 (48 h) 42.7 mg/L [2]
EC0 (48 h) 31.2 mg/L [2]
EC100 (48 h) 62.5 mg/L [2]

Type of Study provided
Studies with data
Key study 2
Supporting study
Weight of evidence
Other
Data waiving
no waivers
Summaries
  • 1 summary submitted
  • 0 summaries processed

No automatically processable data submitted

Long–term toxicity to aquatic invertebrates

Data not provided by the registrant

Toxicity to aquatic algae and cyanobacteria

Study results
  • 2 studies submitted
  • 2 studies processed
P/RResults
EC50 (72 h) 18.1 - 29.644 mg/L [6]
NOEC (72 h) 3.9 mg/L [4]
LOEC (72 h) 7.812 mg/L [2]
EC10 (72 h) 6.04 - 9.81 mg/L [4]
EC20 (72 h) 7.599 - 14.366 mg/L [4]

Type of Study provided
Studies with data
Key study 2
Supporting study
Weight of evidence
Other
Data waiving
no waivers
R Summaries
  • 1 summary submitted
  • 1 summary processed
EC50 for freshwater algae
20.4 mg/L
EC10 or NOEC for freshwater algae
6.04 mg/L

Toxicity to aquatic plants other than algae

Data not provided by the registrant

Toxicity to microorganisms

Study results
  • 3 studies submitted
  • 1 study processed
P/RResults
EC50 (30 min) 1 g/L [1]

Type of Study provided
Studies with data
Key study 1
Supporting study 2
Weight of evidence
Other
Data waiving
no waivers
Summaries
  • 0 summaries submitted
  • 0 summaries processed

No data available

Sediment toxicity

Data not provided by the registrant

Endocrine disrupter testing in aquatic vertebrates – in vivo

Data not provided by the registrant

Toxicity to terrestrial macroorganisms except arthropods

Data not provided by the registrant

Toxicity to terrestrial arthropods

Data not provided by the registrant

Toxicity to terrestrial plants

Data not provided by the registrant

Toxicity to soil microorganisms

Data not provided by the registrant

Toxicity to birds

Data not provided by the registrant

Toxicity to mammals

Data not provided by the registrant

Toxicological information

This section provides toxicological information compiled from all automatically processable data from REACH registration dossiers that is available to ECHA at the time of generation. The quality and correctness of the information remains the responsibility of the data submitter. The Agency thus cannot guarantee the correctness of the information displayed.

Derived No- or Minimal Effect Level (DN(M)EL)

Data not provided by the registrant

Toxicokinetics, metabolism, and distribution

Data not provided by the registrant

Acute toxicity

Study results
oral
  • 15 studies submitted
  • 2 studies processed
P/RResults
LD50 685 mg/kg bw (rat) [2]
M/CInterpretations of results
Category 4 based on GHS criteria [1]

Type of Study provided
oral
Studies with data
Key study 2
Supporting study 2
Weight of evidence
Other 11
Data waiving
no waivers
inhalation
  • 1 study submitted
  • 0 studies processed

No automatically processable data submitted

inhalation
Studies with data
Key study
Supporting study
Weight of evidence
Other 1
Data waiving
no waivers
dermal
  • 0 studies submitted
  • 0 studies processed

No data available

dermal
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
no waivers
other routes
  • 0 studies submitted
  • 0 studies processed

No data available

other routes
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
no waivers
M/C Summaries
  • 1 summary submitted
  • 1 summary processed
Oral route:
Adverse effect observed LD50 685 mg/kg bw

Irritation / corrosion

Study results
Study data: skin
  • 3 studies submitted
  • 0 studies processed

Study data not processed for brief profile

Type of Study provided
Study data: skin
Studies with data
Key study 2
Supporting study
Weight of evidence
Other
Data waiving
Not feasible
Sci. unjustified 1
Exposure cons.
Other
Study data: eye
  • 3 studies submitted
  • 0 studies processed

Study data not processed for brief profile

Study data: eye
Studies with data
Key study 2
Supporting study
Weight of evidence
Other
Data waiving
Not feasible
Sci. unjustified 1
Exposure cons.
Other
M/C Summaries
  • 1 summary submitted
  • 1 summary processed
Skin
No adverse effect observed (not irritating)
Eye
No adverse effect observed (not irritating)
Respiratory
No study available

Sensitisation

Study results
Study data: skin
  • 4 studies submitted
  • 0 studies processed

Study data not processed for brief profile

Type of Study provided
Study data: skin
Studies with data
Key study
Supporting study
Weight of evidence 3
Other
Data waiving
Not feasible 1
Sci. unjustified
Exposure cons.
Other
Study data: respiratory
  • 0 studies submitted
  • 0 studies processed

Study data not processed for brief profile

Study data: respiratory
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
no waivers
M/C Summaries
  • 1 summary submitted
  • 1 summary processed
Skin sensitisation
No adverse effect observed (not sensitising)
Respiratory sensitisation
No study available

Repeated dose toxicity

Study results
Study data: oral
  • 5 studies submitted
  • 1 study processed
P/RResults
NOAEL (rat): 10 mg/kg bw/day [1]
LOAEL (rat): 50 mg/kg bw/day [1]
NOEL (rat): 2 mg/kg bw/day [1]

Type of Study provided
Study data: oral
Studies with data
Key study 1
Supporting study 1
Weight of evidence
Other 3
Data waiving
no waivers
Study data: inhalation
  • 1 study submitted
  • 0 studies processed

No automatically processable data submitted

Study data: inhalation
Studies with data
Key study
Supporting study
Weight of evidence
Other 1
Data waiving
no waivers
Study data: dermal
  • 0 studies submitted
  • 0 studies processed

No data available

Study data: dermal
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
no waivers
Summaries
  • 0 summaries submitted
  • 0 summaries processed

No data available

Genetic toxicity

Study results
Study data: in vitro
  • 4 studies submitted
  • 0 studies processed

Study data not processed for brief profile

Type of Study provided
Study data: in vitro
Studies with data
Key study 2
Supporting study 1
Weight of evidence
Other 1
Data waiving
no waivers
Study data: in vivo
  • 0 studies submitted
  • 0 studies processed

Study data not processed for brief profile

Study data: in vivo
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
no waivers
M/C Summaries
  • 1 summary submitted
  • 1 summary processed
Toxicity - InVitro
No adverse effect observed (negative)
Toxicity - InVivo
No study available

Carcinogenicity

Data not provided by the registrant

Toxicity to reproduction

Data not provided by the registrant

Neurotoxicity

Study results
  • 1 study submitted
  • 0 studies processed

Study data not processed for brief profile

Type of Study provided
Studies with data
Key study 1
Supporting study
Weight of evidence
Other
Data waiving
no waivers
Summaries
  • 0 summaries submitted
  • 0 summaries processed

No data available

Immunotoxicity

Data not provided by the registrant

Endocrine disrupter mammalian screening - in vivo

Data not provided by the registrant