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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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.

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Physical & Chemical properties

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Endpoint:
other: saturation in air
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
no guideline followed
Principles of method if other than guideline:
No information available. Handbook source
GLP compliance:
not specified
Remarks:
Handbook source
Results:
Saturation concentration in air: 163 g/m3 at 20 oC and 249 g/m3 at 30 oC
Conclusions:
Published chemistry handbook data report the saturation concentration in air of acetonitrile to be 163 g/m3 at 20 oC and 249 g/m3 at 30 oC
Executive summary:

Published chemistry handbook data report the saturation concentration in air of acetonitrile to be 163 g/m3at 20 oC and 249 g/m3at 30 oC

Endpoint:
other: decomposition products
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
no guideline followed
Principles of method if other than guideline:
No information available.
GLP compliance:
not specified
Results:
Acetonitrile emits highly toxic fumes of hydrogen cyanide when heated to decomposition, or reacted with acids or oxidizing agents.
Conclusions:
Acetonitrile emits highly toxic fumes of hydrogen cyanide when heated to decomposition, or reacted with acids or oxidizing agents.
Executive summary:

Published chemistry handbook data reports that acetonitrile emits highly toxic fumes of hydrogen cyanide when heated to decomposition, or reacted with acids or oxidizing agents.

Endpoint:
other: vapour density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
no guideline followed
Principles of method if other than guideline:
No information available
GLP compliance:
not specified
Remarks:
Handbook source
Results:
Vapour density: 1.42 (air = 1).
Conclusions:
Published handbook data reports the vapor density of acetonitrile is 1.42 (air = 1).
Executive summary:

Published handbook data reports the vapor density of acetonitrile is 1.42 (air = 1).

Description of key information

Published handbook data reports the vapor density of acetonitrile to be 1.42 (air = 1), the saturation concentration in air to be 163 g/m3at 20 oC and 249 g/m3at 30 oC and that acetonitrile emits highly toxic fumes of hydrogen cyanide when heated to decomposition, or reacted with acids or oxidizing agents

Additional information