Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Physical & Chemical properties

Appearance / physical state / colour

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: expert judgement
Qualifier:
no guideline available
GLP compliance:
not specified
Physical state at 20°C and 1013 hPa:
solid
Key result
Form:
particulates
Odour:
other: no data
Substance type:
organic
Conclusions:
C12 AAPB is an organic solid with spherical and porous particles under standard conditions.
Executive summary:

Under standard conditions, C12 AAPB is an organic solid with spherical and porous particles.

Description of key information

C8-18 AAPB (lyophilized): organic, powdery solid at standard conditions
C12 AAPB (lyophilized): organic solid with spherical and porous particles

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
solid

Additional information

C8 -18 AAPB and C12 AAPB (lyophilized) are characterized as organic, powdery solid and as organic solid with spherical and porous particles. All AAPBs are similar in structure, contain all the same zwitterionic structure. They differ, however, by their carbon chain length distribution and the degree of unsaturation (<= 20%) in the fatty acid moiety. The content of minor constituents in all products are comparable and differ to an irrelevant amount. Based on the available data, it can be assumed that chain length distribution and degree of unsaturation of the fatty acid chain have no or at the most a minor impact on this endpoint.