2-Thiophenecarboxylic acid, 5-chloro-

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

18 Jul - 19 Jul 2005

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study without detailed documentation

Qualifier:

according to guideline

Guideline:

EU Method A.17 (Oxidising Properties (Solids))

Deviations:

yes

Remarks:

see 'Principles of method if other than guideline'

Principles of method if other than guideline:

Barium nitrate and cellulose were used as reference materials (mixing ratio was not specified).

GLP compliance:

yes (incl. QA statement)

Key result

Sample tested:

other: 20% Substance/ 80% Cellulose

Parameter:

maximum burning rate

Result:

0.86 mm/s

Sample tested:

reference mixture (not specified)

Parameter:

maximum burning rate

Result:

1.27 mm/s

The burn-up rate of each mixture of dried test substance with cellulose (10-90%) was measured. A gas burner producing a temperature of greater than 1000 °C was employed to ignite the powder train of 200 mm length.

detailed results:

mixture	burning distance [mm]	burnig time [s]	burning rate [mm/s]
10% substance / 90% cellulose	200	270	0.74
20% substance / 80% cellulose	200	233	0.86
30% substance / 70% cellulose	200	241	0.83
40% substance / 60% cellulose	200	252	0.79
50% substance / 50% cellulose	200	258	0.78
60% substance / 40% cellulose	200	328	0.61
70% substance / 30% cellulose	200	416	0.48
80% substance / 20% cellulose	200	552	0.36
90% substance / 10% cellulose	200	The flame extinguished after 20 mm

On the basis of considerable difference of combustion behaviour between substance/cellulose (0.86 mm/s) and reference mixture (1.27 mm/s) no further testing was required.

 

Validity criteria for the measurement of the oxidising properties:

The study was performed according to test procedure A. 17. However, details of the results are not stated. Thus, the values obtained by this study are considered as being valid with restrictions.

 

Interpretation of results:

GHS criteria not met

Conclusions:

The test substance has no oxidising properties.

Executive summary:

The study was performed to assess the oxidising properties (solids). The study was conducted in accordance with EEC Method for "determination of the oxidising properties for solids", Directive 92/69/EEC, method A.17. The test substance has no oxidising properties.

Description of key information

The study was performed to assess the oxidising properties (solids). The study was conducted in accordance with EEC Method for "determination of the oxidising properties for solids", Directive 92/69/EEC, method A.17. The test substance has no oxidising properties.

Key value for chemical safety assessment

Oxidising properties:

non oxidising