2,2'-[azobis(1-methylethylidene)]bis[4,5-dihydro-1H-imidazole dihydrochloride

Appearance / physical state / colour

Link to relevant study record(s)

Reference

Endpoint:

appearance / physical state / colour

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2014-2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: description based on visual inspection

Qualifier:

according to guideline

Guideline:

other: In numerous guideline studies (e.g. for the determination of melting point, explosive properties) the physical state of 2,2'-[Azobis (1-methylethylidene)] bis [4,5-dihydro-1H-imidazole] dihydrochloride is described.

Deviations:

not applicable

Principles of method if other than guideline:

visual inspection of the test item;

GLP compliance:

not specified

Specific details on test material used for the study:

test samples of different production dates

Physical state at 20°C and 1013 hPa:

solid

Key result

Form:

solid

Colour:

slightly yellow

Odour:

faint

Substance type:

organic

Conclusions:

2,2'-[Azobis (1-methylethylidene)] bis [4,5-dihydro-1H-imidazole] dihydrochloride is described as a solid consisting of slightly yellow flakes. Furthermore the substance does not fulfill the criteria for gases or liquids according to Annex I, Part 1, 1.0 definitions of CLP Regulation, and therefore is considered as solid substance at room temperature.

Description of key information

2,2'-[Azobis (1-methylethylidene)] bis [4,5-dihydro-1H-imidazole] dihydrochloride is described as a solid consisting of slightly yellow flakes. Furthermore, the substance does not fulfil the criteria for gases or liquids according to Annex I, Part 1, 1.0 definitions of CLP Regulation, and therefore is considered as solid substance at room temperature.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:

solid

Form:

solid: flakes

Colour:

yellow

Colour intensity:

light