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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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