Chromium hydroxide nitrate (Cr(OH)(NO3)2)

Appearance / physical state / colour

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 generally accepted scientific standards and described in sufficient detail

Justification for type of information:

Solution observed. Attempts on drying result in loss of nitrous fumes with decomposition at > 100 C

Qualifier:

no guideline followed

Version / remarks:

Basic observations

Principles of method if other than guideline:

Obsevation of production material

GLP compliance:

no

Other quality assurance:

other: Internal company SOP

Specific details on test material used for the study:

Batch number of test material : A-09-3004

Physical state at 20°C and 1013 hPa:

liquid

Remarks:

Solution - not possible to remove water

Key result

Form:

liquid - solid: mixture of

Colour:

Blue / Green

Odour:

odourless

Substance type:

inorganic

Conclusions:

Direct observations of solution.
Attempts were made to dry the material at 95% and a loss on drying was acheived, but the residual material appeared to have undergone some decomposition.
Heating to over 100 C results in the formation of nitrous fumes.

Description of key information

Blue / Green solution

Note that it is not possible to remove the water to dryness.

Attempts on drying result in loss of nitrous fumes with decomposition at > 100 C

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:

liquid

Additional information

The material would very likely be solid if possible to remove water.