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Please be aware that the REACH registration parts of this Brief Profile are no longer maintained; they remain frozen as of 19th May 2023.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.:
231-952-7
CAS no.:
7782-39-0
Index number:
Molecular formula:
H2
SMILES:
[2H][2H]
InChI:
InChI=1S/H2/h1H/i1+1D
Type of substance:
Mono constituent substance
Origin:
Element
Registered compositions:
2
Of which contain:
2 impurities relevant for classification
0 additives relevant for classification
Substance Listed:
EINECS (European INventory of Existing Commercial chemical Substances) List

Hazard classification & labelling

Danger! According to the classification provided by companies to ECHA in REACH registrations this substance is a flammable gas and contains gas under pressure and may explode if heated.

Additionally, the classification provided by companies to ECHA in CLP notifications identifies that this substance is an extremely flammable gas.

Breakdown of all 123 C&L notifications submitted to ECHA

Press. Gas (Comp.) H280
Flam. Gas 1 H220
- H221
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

At least one notifier has indicated that an impurity or an additive present in the substance impacts the notified classification.

Properties of concern

Regulatory context

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

Registration
Pre-registration:
Substance pre-registered under REACH.
Registration:
This substance has 1 active registrations under REACH, 1 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 by professional workers (widespread uses), in formulation or re-packing and at industrial sites.

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.

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 into which articles the substance might have been processed.

This substance is used in the following products: laboratory chemicals.

This substance is used in the following areas: scientific research and development.

This substance is used in the following activities or processes at workplace: laboratory work.

Other release to the environment of this substance is likely to occur from: indoor use.

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

This substance is used in the following activities or processes at workplace: closed processes with no likelihood of exposure and transfer of chemicals at dedicated facilities.

Release to the environment of this substance can occur from industrial use: formulation of mixtures.

This substance is used in the following products: laboratory chemicals.

This substance is used for the manufacture of: chemicals.

This substance is used in the following activities or processes at workplace: closed processes with no likelihood of exposure and transfer of chemicals at dedicated facilities.

Release to the environment of this substance can occur from industrial use: as an intermediate step in further manufacturing of another substance (use of intermediates).

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.

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

Prevention statements

When handling this substance: keep away from heat, sparks, open flames and/or hot surfaces – No smoking.

Response statements

In case of incident: In case of leaking gas fire do not extinguish unless leak can be stopped safely. In case of leakage eliminate all ignition sources.

Storage statements

Store this substance in a well-ventilated place.

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

Registrants/suppliers

  • Linde GmbH Gases Division, Seitnerstrasse 70 DE-82049 Pullach Germany

Substance names and other identifiers

Deuterium
EC Inventory, REACH pre-registration
Deuterium
REACH pre-registration, Other
Deuterium molecule
Other
DEUTERIUM, COMPRESSED
Inland Transport of Dangerous Goods Directive, Annex III - ADN, Inland Transport of Dangerous Goods Directive, Annex I - ADR, Inland Transport of Dangerous Goods Directive, Annex II - RID
Dideuterium
Other
Diplogen
Other
Heavy hydrogen
Other
Hydrogen, isotope of mass 2
Other
Hydrogen-2
Other
Hydrogen-d2
Other
(²H₂)dihydrogen
Other
Deuterium
C&L Inventory, Registration dossier
dideuterium
C&L Inventory
7782-39-0
CAS number
EC Inventory, C&L Inventory, Registration dossier, REACH pre-registration, Other, Inland Transport of Dangerous Goods Directive, Annex III - ADN, Inland Transport of Dangerous Goods Directive, Annex I - ADR, Inland Transport of Dangerous Goods Directive, Annex II - RID

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
  • 1 study submitted
  • 1 study processed
C Physical state at 20°C and 1013 hPa
Gaseous (100%) [1]
C Substance type
Element (100%) [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

Melting/freezing point

Study results
  • 1 study submitted
  • 1 study processed
R Melting / freezing point
-254.43 °C @ 17.1 kPa [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

Boiling point

Study results
  • 1 study submitted
  • 1 study processed
R Boiling point
-251.02 °C @ 101.3 kPa [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

Density

Study results
  • 2 studies submitted
  • 1 study processed
R Density
0.067 g/cm³ @ -234.8 °C [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

Vapour pressure

Study results
  • 1 study submitted
  • 1 study processed
R Vapour pressure
17.1 - 1 665 kPa @ -254.43 - -234.8 °C [2]

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

Partition coefficient

Study results
  • 1 study 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
Summaries
  • 0 summaries submitted
  • 0 summaries processed

No data available

Water solubility

Study results
  • 2 studies submitted
  • 0 studies processed

No automatically processable data submitted

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

No data available

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 1
Weight of evidence
Other
Data waiving
Not feasible
Sci. unjustified 1
Exposure cons.
Other
Summaries
  • 0 summaries submitted
  • 0 summaries processed

No data available

Flash point

Study results
  • 1 study 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
Summaries
  • 0 summaries submitted
  • 0 summaries processed

No data available

Auto flammability

Study results
  • 1 study submitted
  • 1 study processed
R Autoflammability / self-ignition
570 °C @ 101.325 kPa [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

Flammability

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

Explosiveness

Study results
  • 1 study 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
Summaries
  • 0 summaries submitted
  • 0 summaries processed

No data available

Oxidising

Study results
  • 1 study 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
Summaries
  • 0 summaries submitted
  • 0 summaries processed

No data available

Oxidation reduction potential

Data not provided by the registrant

pH

Data not provided by the registrant

Dissociation constant

Data not provided by the registrant

Viscosity

Data not provided by the registrant

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

Data not provided by the registrant

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
  • 1 study 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
Summaries
  • 0 summaries submitted
  • 0 summaries processed

No data available

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

Data not provided by the registrant

Henrys law constant (H)

Data not provided by the registrant

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)

Data not provided by the registrant

Short–term toxicity to fish

Data not provided by the registrant

Long–term toxicity to fish

Data not provided by the registrant

Short–term toxicity to aquatic invertebrates

Data not provided by the registrant

Long–term toxicity to aquatic invertebrates

Data not provided by the registrant

Toxicity to aquatic algae and cyanobacteria

Data not provided by the registrant

Toxicity to aquatic plants other than algae

Data not provided by the registrant

Toxicity to microorganisms

Data not provided by the registrant

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

Data not provided by the registrant

Irritation / corrosion

Data not provided by the registrant

Sensitisation

Data not provided by the registrant

Repeated dose toxicity

Data not provided by the registrant

Genetic toxicity

Data not provided by the registrant

Carcinogenicity

Data not provided by the registrant

Toxicity to reproduction

Data not provided by the registrant

Neurotoxicity

Data not provided by the registrant

Immunotoxicity

Data not provided by the registrant

Endocrine disrupter mammalian screening - in vivo

Data not provided by the registrant