Reaction mass of 1-chloro, 2-(difluoromethoxy) -1,1,2,3,3,3-hexafluoropropane and 2-difluoromethoxy-1,1,1,2,3,3,3-eptafluoro-propane

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising liquids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From July 2017 to May 2017

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.2 (Test for oxidizing liquids)

Version / remarks:

Deviation: the mean pressure rise time obtained with the sodium chlorate / cellulose mixture recorded was 1570 ms instead of about 2500 ms as expected
following the guideline. The mean pressure rise time obtained with the nitric acid / cellulose mixture recorded was 3165 ms instead of about 4767 ms as expected following the guideline. As no pressure rise time of the test item / cellulose mixture was recorded, this deviation was not considered to have affected the quality or the interpretation of the results obtained

Deviations:

yes

Remarks:

The deviation was not considered to have affected the quality or the interpretation of the results obtained.

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

- Lot/batch No. 24/02/2016
- Expiration date of the lot/batch: July 2021
- Purity: 75,6%
- Purity test date: 11 July 2016 (reported on the CoA)

Contact with:

other: dried fibrous cellulose

Duration of test (contact time):

60 s

Key result

Sample tested:

test mixture 1:1

Parameter:

preliminary test

Remarks on result:

spontaneous ignition does not occur

Key result

Sample tested:

test mixture 1:1

Parameter:

mean pressure rise time

Remarks on result:

maximum pressure of 2070 kPa not reached

Preparation of the fibrous cellulose

Drying time: 22 hours

Drying temperature: Between 101.3°C and 108.2 °C (mean 106.9 °C)

 

Mixtures of reference item / cellulose

 

With a 50% perchloric acid aqueous solution as reference item:

 

Assay No.	Test item mass (g)	Cellulose mass (g)	Atmospheric pressure(kPa)	Corrected pressure rise time(ms)	Mean corrected pressure rise time(ms)	Theorical calculated min and max accepted value: ± 30% of the mean pressure rise time(ms)
1	2.5	2.5	98.3	76	78
2	2.5	2.5	98.3	84
3	2.5	2.5	98.3	75		[55 ; 101]
4	2.5	2.5	98.3	80
5	2.5	2.5	98.3	75

 

 

With a 40% sodium chlorate aqueous solution as reference item

 

Assay No.	Test item mass (g)	Cellulose mass (g)	Atmospheric pressure(kPa)	Corrected pressure rise time(ms)	Mean corrected pressure rise time(ms)	Theorical calculated min and max accepted value: ± 30% of the mean pressure rise time(ms)
2	2.5	2.5	98.2	1632	1570
3	2.5	2.5	98.2	1567
4	2.5	2.5	98.2	1296		[1099 ; 2041]
5	2.5	2.5	98.1	1656
6	2.5	2.5	98.1	1699

Remark: Another assay was performed but it was not taken into account as it did not complywith the quality criteria.

 

With a 65% nitric acid aqueous solution as reference item

 

Assay No.	Reference item mass(g)	Cellulose mass (g)	Atmospheric pressure(kPa)	Corrected pressure rise time(ms)	Mean corrected pressure rise time(ms)	Theorical calculated min and max accepted value: ± 30% of the mean pressure rise time(ms)
1	2.5	2.5	98.4	2765	3165
2	2.5	2.5	98.4	3734
3	2.5	2.5	98.4	2689		[2215 ; 4115]
4	2.5	2.5	98.4	3323
5	2.5	2.5	98.4	3312

 

 

Mixtures of test item / cellulose

 

Assay No.	Reference item mass(g)	Cellulose mass (g)	Atmospheric pressure(kPa)	Corrected pressure rise time(ms)	Mean corrected pressure rise time(ms)	Theorical calculated min and max accepted value: ± 30% of the mean pressure rise time(ms)
1	2.5	2.5	98.1	/	/
4	2.5	2.5	98.1	/
6	2.5	2.5	98.1	/		/
7	2.5	2.5	98.1	/
8	2.5	2.5	98.1	/

The pressure did not rise Patm + 2070 kPa for the five assays above. The assay No. 4 was was not taken into account as a leak was recorded.

 

 Conclusion

The mean pressure rise times obtained with the three reference item / cellulose mixtures and with the test item / cellulose mixture were:

 

Mean pressure rise time (ms)
Reference items		Test item
50% perchloric acid solution	85	/
40% aqueous sodium chlorate solution	395
65% aqueous nitric acid solution	2955

No pressure rise time was obtained with the test item / cellulose mixture. The pressure did not rise Patm + 2070 kPa.

Interpretation of results:

GHS criteria not met

Conclusions:

No pressure rise time was obtained with the test item / cellulose mixture. The pressure did not rise Patm + 2070 kPa.
The test item was not classified as an oxidising liquid of Division 5.1 and not classified following EC No. 1272/2008 (CLP) under the experimental conditions used.

Executive summary:

In this study, the test item was tested for oxidizing properties in compliance with United Nations Recommendations on the Transport of Dangerous Goods - Manual of Tests and Criteria - Fifth revised edition (2009) - Method O.2 (Part III, Section 34.4.2) and under GLP conditions.

As a result, no pressure rise time was obtained with the test item / cellulose mixture. The pressure did not rise Patm + 2070 kPa.

Description of key information

One reliable study is available. This study was performed according to the United Nations Recommendations on the Transport of Dangerous Goods - Manual of Tests and Criteria - Fifth revised edition (2009) - Method O.2 (Part III, Section 34.4.2) and under GLP conditions.

In all the performed assays with the N1 SOLVENT / cellulose mixture, the pressure did not rise Patm + 2070 kPa.

It was determined that the N1 SOLVENT has no oxidizing properties.

Key value for chemical safety assessment

Oxidising properties:

non oxidising

Justification for classification or non-classification

According to the results of the O2 method test for the oxydising liquids, N1 SOLVENT is not classified as an oxidising liquid of Division 5.1 and not classified according to EC No. 1272/2008 (CLP).