Sodium cyclamate

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2018-06-04 to 2018-09-03

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Test O.3 (Gravimetric test for oxidizing solids)

GLP compliance:

no

Other quality assurance:

ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)

Contact with:

other: fibrous cellulose

Sample tested:

1:1 sample-to-cellulose ratio

Parameter:

burning rate

Result:

0.05 g/s

Sample tested:

4:1 sample-to-cellulose ratio

Parameter:

burning rate

Result:

0.02 g/s

Sample tested:

reference: 1:2 mixture calcium peroxide + cellulose

Parameter:

burning rate

Result:

0.29 g/s

Details on results:

Mixture test item: cellulose (1:1)

Test run	Weighed Portion		Ignition energy	t20-80	BR20-80
	Substance	Cellulose
1	15 g	15 g	153 W	183 s*	0.05 g/s
2	15 g	15 g	153 W	178 s*	0.05 g/s
3	15 g	15 g	153 W	175 s*	0.05 g/s
4	15 g	15 g	153 W	189 s*	0.05 g/s
5	15 g	15 g	153 W	182 s*	0.05 g/s
Arithmetic mean:					0.05 g/s

*burning time > 300 s

Mixture test item: cellulose (4:1)

Test run	Weighed Portion		Ignition energy	t20-80	BR20-80
	Substance	Cellulose
1	24 g	6 g	153 W	148 s*	0.02 g/s
2	24 g	6 g	153 W	140 s*	0.03 g/s
3	24 g	6 g	153 W	169 s*	0.02 g/s
4	24 g	6 g	153 W	177 s*	0.02 g/s
5	24 g	6 g	153 W	148 s*	0.02 g/s
Arithmetic mean:					0.02 g/s

*burning time > 300 s

Reference-Mixture calcium peroxide:cellulose (1:2)

Test run	Weighed Portion		Ignition energy	t20-80	BR20-80
	Calcium peroxide	Cellulose
1	10 g	20 g	153 W	43 s	0.28 g/s
2	10 g	20 g	153 W	43 s	0.28 g/s
3	10 g	20 g	153 W	42 s	0.29 g/s
4	10 g	20 g	153 W	39 s	0.31 g/s
5	10 g	20 g	153 W	40 s	0.30 g/s
Arithmetic mean:					0.29 g/s

None of all values determined for the burning rate of the given sample was equal or exceeded the obtained value for the reference measurement. Therefore, the sample is to be classified to have no oxidizing properties according to UN MTC.

Interpretation of results:

GHS criteria not met

Conclusions:

The test item has no oxidizing properties when tested according to UN O.3.

Executive summary:

The test item has no oxidizing properties when tested according to UN O.3.

Description of key information

The test item has no oxidizing properties when tested according to UN O.3.

Key value for chemical safety assessment

Oxidising properties:

non oxidising

Justification for classification or non-classification

The buring rates of mixtures of test item/cellulose in the ratios 1:1 and 4:1 were compared to the burning rate of a reference mixture (calcium peroxide: cellulose (1:2)).

None of the burning rate values of the test item mixtures was equal or exceeded the obtained value for the reference mixture measurement. Therefore, the test item does not have oxidizing properties.