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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:
test procedure in accordance with national standard methods
Qualifier:
no guideline followed
Principles of method if other than guideline:
Visual method
GLP compliance:
no
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch number of test material: MLPC sample
- Purity test date: according to the standard description
Physical state at 20°C and 1013 hPa:
solid
Form:
powder
Colour:
white - slightly staining, slightly clouring
Substance type:
organic
Conclusions:
Solid at 20°C - white powder slightly staining, slightly clouring
Executive summary:

DPTU (1,3 -diphenyl-2 -thiourea) is at 25°C a white powder, slightly staining, slightly clouring

Description of key information

solid powder white to grey.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
solid
Form:
solid: particulate/powder
Colour:
white

Additional information

Four references are found, with the following conclusion:

  • According to the Merck index, DPTU is a white cristalline solid with adistinct bitter taste.
  • According to The Condensed Chemical Dictionary (1977), DPTU is a grey powder.
  • According to Sax (1975), a white to faint gray powder.
  • DPTU is at 25°C a white powder, slightly staining, slightly coloured (technical data sheet).