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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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard test guidelines
Reference:
Composition 1
Qualifier:
according to
Guideline:
other: As mention below
Principles of method if other than guideline:
On basis of visual perceptual/Olfactory property
GLP compliance:
no
Test material information:
Composition 1
Specific details on test material used for the study:
- Name of test material: 2-amino-5-hydroxynaphthalene-1,7-disulfonic acid
- Molecular formula: C10H9NO7S2
- Molecular weight: 319.3131 g/mol
- Smiles notation: c1cc(c(c2c1c(cc(c2)S(=O)(=O)O)O)S(=O)(=O)O)N
- InChl: 1S/C10H9NO7S2/c11-8-2-1-6-7(10(8)20(16,17)18)3-5(4-9(6)12)19(13,14)15/h1-4,12H,11H2,(H,13,14,15)(H,16,17,18)
- Physical state: Solid
- Substance type: Organic
Physical state at 20°C and 1013 hPa:
solid
Key result
Form:
solid: particulate/powder
Colour:
Grey
Odour:
other: No detail available
Substance type:
organic
Conclusions:
On the basis of physical observation and using the sense of smell, 2-amino-5-hydroxynaphthalene-1,7-disulfonic acid was observed to be a solid grey powder.
Executive summary:

On the basis of physical observation and using the sense of smell, 2-amino-5-hydroxynaphthalene-1,7-disulfonic acid was observed to be a solid grey powder.

Description of key information

On the basis of physical observation and using the sense of smell, 2-amino-5-hydroxynaphthalene-1,7-disulfonic acid was observed to be a solid grey powder.

Key value for chemical safety assessment

Physical state at 20C and 1013 hPa:
solid

Additional information

On the basis of physical observation and using the sense of smell, 2-amino-5-hydroxynaphthalene-1,7-disulfonic acid was observed to be a solid grey powder.