Registration Dossier

Administrative data

Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: A Klimisch 2 reliability score was assigned since data are based on a reliable handbook.

Data source

Referenceopen allclose all

Reference Type:
review article or handbook
Title:
Physical Constants of Inorganic Compounds
Author:
Lide DR
Year:
2009
Bibliographic source:
CRC Handbook of Chemistry & Physics, 89th Edition CRC Press
Reference Type:
other: EU RAR Sodium Hydroxide
Title:
European Risk Assessment Report Sodium Hydroxide
Author:
European Communities
Year:
2007
Bibliographic source:
EUR 23040 EN, Volume 73

Materials and methods

Principles of method if other than guideline:
No data
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium hydroxide
EC Number:
215-185-5
EC Name:
Sodium hydroxide
Cas Number:
1310-73-2
Molecular formula:
HNaO
IUPAC Name:
sodium hydroxide
Details on test material:
- Name of test material (as cited in study report): sodium hydroxide, caustic soda

Results and discussion

Physical state at 20°C and 1013 hPa:
solid
Form / colour / odour
Form:
other: hygroscopic
Colour:
white
Odour:
other: It has no specific odour
Substance type:
inorganic

Applicant's summary and conclusion

Conclusions:
At room temperature sodium hydroxide is a white orthorhombic crystal and is hygroscopic. It has no specific odour and it is an inorganic substance.