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Physical & Chemical properties

Appearance / physical state / colour

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Reference
Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2 August 2006 to 8 December 2006
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
Information comes from physico-chemical study report which is considered reliable without restriction. Study conducted to GLP in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results.
Qualifier:
no guideline required
GLP compliance:
yes (incl. QA statement)
Physical state at 20°C and 1013 hPa:
solid
Form:
powder
Colour:
black
Odour:
other: not reported
Conclusions:
The test material is a black powdery solid at 20 °C and 1013 hPa.
Executive summary:

In a general physico-chemical properties study (0370/0351), the test material was determined to be a black powdery solid.

Description of key information

Nigrosine is a black powdery solid at 20 ºC and 1013 hPa.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
solid

Additional information

In a general physico-chemical properties study (0370/0351), the test material was determined to be a black powdery solid. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).