Hexachloroplatinic acid

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP Compliant, guideline study, available as unpublished report, acceptable with restrictions

Qualifier:

equivalent or similar to guideline

Guideline:

UN Manual of Tests and Criteria: Test O.1 (Test for oxidizing solids)

Deviations:

yes

Remarks:

electrical resistance of ignition wire used was 3.9Ω/m, deviation from the electrical resistance of 6.0 ± 0.5 Ω/m, However the material, length and diameter of the wire met the method specifications.

GLP compliance:

yes (incl. QA statement)

Contact with:

powdered cellulose

Duration of test (contact time):

3 min

Sample tested:

1:1 sample-to-cellulose ratio

Parameter:

burning rate

Remarks on result:

mixture does not ignite and burn

Sample tested:

4:1 sample-to-cellulose ratio

Parameter:

burning rate

Remarks on result:

mixture does not ignite and burn

Results
3:7 (by mass) cellulose and potassium bromate reference mixture
Test Number	Burning Time (seconds)	Observations
1	91	Mixture burned with an orange and greenish blue flame with some spluttering
2	138	Mixture burned with an orange and blue flame with spluttering
3	123	Mixture burned with an orange and blue flame with spluttering
4	112	Mixture burned with an orange and blue flame with spluttering
5	114	Mixture burned with an orange and blue flame with spluttering
1:1 (by mass) test item and cellulose mixture
1	-	Grey fumes emitted: no ignition. Some charring of the mixture
2	-	Grey fumes emitted: no ignition. Some charring of the mixture
3	-	Grey fumes emitted: no ignition. Some charring of the mixture
4	-	Grey fumes emitted: no ignition. Some charring of the mixture
5	-	Grey fumes emitted: no ignition. Some charring of the mixture
4:1 (by mass) test item and cellulose mixture
1	-	Mixture appears to be boiling and blackening. Liquefying observed. No ignition
2	-	Mixture appears to be boiling, black liquid. Grey fumes. No ignition
3	-	Mixture appears to be boiling, black liquid. Grey fumes. No ignition
4	-	Mixture appears to be charred and melted. Grey fumes. No ignition
5	-	Mixture appears to be boiling, black liquid. Grey fumes. No ignition

Test item was fine powder but did contain some larger granules. Whole of test item was ground to a fine powder

Interpretation of results:

other: no oxidising properties

Conclusions:

Hexachlorplatinic acid has been determined not be a Division 5.1 substance for oxidising properties, as both the 4:1 and 1:1 test item to cellulose test mixtures failed to ignite.

Executive summary:

This is a GLP compliant study following UN method O1 (Oxidising solids) and is considered to be suitable for use as the key study for this endpoint.

Hexachloroplatinic acid has been determined not be a Division 5.1 substance for oxidising properties, as both the 4:1 and 1:1 test item to cellulose test mixtures failed to ignite.

Description of key information

Hexachloroplatinic acid has been determined not be a Division 5.1 substance for oxidising properties, as both the 4:1 and 1:1 test item to cellulose test mixtures failed to ignite.

Key value for chemical safety assessment

Oxidising properties:

no

Additional information

Walker and White (2011) is a GLP compliant study following UN method O1 (Oxidising solids) and is considered to be suitable for use as the key study for this endpoint. Hexachloroplatinic acid has been determined not be a Division 5.1 substance for oxidising properties, as both the 4:1 and 1:1 test item to cellulose test mixtures failed to ignite.

Justification for classification or non-classification

Based on experimental data following a standard test guideline, hexachloroplatinic acid has been determined not be a Division 5.1 substance for oxidising properties, as both the 4:1 and 1:1 test item to cellulose test mixtures failed to ignite.