Lithium nickel potassium oxide

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

October 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

test procedure in accordance with national standard methods

Qualifier:

according to guideline

Guideline:

other: NFPA 400 (2015) “Hazardous Materials Code” Annex G. test method, as described in Annex G.1.4.3

Contact with:

other: An additional trial with a percarbonate based granular oxidizer, in similar combustible packaging, that did not cause a moderate increase in the burning rate of combustible material, was tested for comparison.

Key result

Sample tested:

other: KDLNO and granular solid, percarbonate mixture

Parameter:

other: peak convective heat release rate and peak radiant heat flux

Result:

> 60 - < 120 s

The peak convective heat release rate from two intermediate-scale trials with 10.8 kg (24 lb) KDLNO in combustible supersack packaging, less the 35 kW propane burner, were 105 and 133 kW – both less than the 200-kW peak heat release rate Class 3 criterion. Further, the peak radiant heat flux was comparable to other Class 2 oxidizers and the KDLNO active burning times were between 60 and 120 seconds.

The results of testing show KDLNO is a Class 2 Oxidizer where used, handled and stored.

Based on the intermediate scale test results and NFPA 400 (2016) Annex G peak convective and active burning time criterion in Table G.1.2(a) for 10.8 kg (24 lb) solid oxidizers in combustible packaging, the KDLNO product is a:

NFPA 400 Class 2 Oxidizer (solid).

Interpretation of results:

Category 2 (oxidising solids) based on GHS criteria

Conclusions:

The results of testing show KDLNO is a Class 2 Oxidizer where used, handled and stored.

Executive summary:

The peak convective heat release rate from two intermediate-scale trials with 10.8 kg (24 lb) KDLNO in combustible supersack packaging, less the 35 kW propane burner, were 105 and 133 kW – both less than the 200-kW peak heat release rate Class 3 criterion. Further, the peak radiant heat flux was comparable to other Class 2 oxidizers and the KDLNO active burning times were between 60 and 120 seconds.

The results of testing show KDLNO is a Class 2 Oxidizer where used, handled and stored.

Based on the intermediate scale test results and NFPA 400 (2016) Annex G peak convective and active burning time criterion in Table G.1.2(a) for 10.8 kg (24 lb) solid oxidizers in combustible packaging, the KDLNO product is a:

NFPA 400 Class 2 Oxidizer (solid).

Description of key information

The results of testing show KDLNO is a Class 2 Oxidizer where used, handled and stored.

Key value for chemical safety assessment

Oxidising properties:

oxidising