Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
February 08 - March 23, 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.17 (Oxidising Properties (Solids))
Version / remarks:
2008 May 31
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Specific details on test material used for the study:
Expiry date 16 June 2020
Storage room temperature

Contact with:
powdered cellulose
Key result
Sample tested:
other:
Remarks:
Oxidiser cellulose-mixtures containing 10 to 90 % weight of oxidiser in 10 % increments
Parameter:
burning time of reaction over a distance of 200 mm
Remarks on result:
other: The maximum burning rate of the test item found in the 10:90 % mixture was lower than the burning rate of the reference mixture in the Main Test. Therefore Brown 3 is not considered to be an oxidizing substance.

Reference measurement

Ratio

Ba(NO3)2: Cellulose

Weight

Ba(NO3)2(g)

Weight

Cellulose (g)

Burning time (sec)

Burning rate (mm/sec)

10 : 90 %

2.01

18.01

570

0.351

20 : 80 %

4.02

16.00

461

0.434

30 : 70 %

6.00

14.00

389

0.514

40 : 60 %

12.00

18.00

452

0.442

50 : 50 %

15.00

15.00

498

0.402

60 : 40 %

18.00

12.00

508

0.394

70 : 30 %

21.01

9.00

660

0.303

80 : 20 %

40.00

10.00

-

-

90 : 10 %

45.00

5.00

-

-

Main Test

Ratio

Test item : Cellulose

Weight

Test item (g)

Weight

Cellulose (g)

Burning time

(sec)

Burning rate (mm/sec)

Type of burning

10 : 90 %

2.00

18.01

701

0.285

ignited, burnt with flame

20 : 80 %

4.00

16.00

-

-

ignited but did not propagate over 200 mm

30 : 70 %

6.00

14.00

-

-

ignited but did not propagate over 200 mm

40 : 60 %

12.00

18.00

-

-

no ignition, fuming

50 : 50 %

15.00

15.00

-

-

no ignition, fuming

60 : 40 %

18.00

12.00

-

-

no ignition, fuming

70 : 30 %

14.00

6.00

-

-

no ignition, fuming

80 : 20 %

16.00

4.00

-

-

no ignition, fuming

90 : 10 %

18.00

2.00

-

-

no ignition, fuming

 Results of the six tests with the mixture containing 10% test item

Ratio

Test item : Cellulose

Weight

Test item (g)

Weight

Cellulose (g)

Burning time

(sec)

Burning rate (mm/sec)

10 : 90 %

2.01

18.01

528

0.379

10 : 90 %

2.00

18.00

540

0.370

10 : 90 %

2.00

18.00

543

0.368

10 : 90 %

2.01

18.00

536

0.373

10 : 90 %

2.01

18.00

535

0.374

10 : 90 %

2.00

18.00

533

0.375

Interpretation of results:
GHS criteria not met
Conclusions:
The cone-shaped pile formed during the Preliminary Test could not be ignited therefore the Main Test was performed.
The highest value of burning rate within a run of six tests of a given mixture is relevant for evaluation.
The maximum burning rate of the test item found in the 10:90 % mixture was lower than the burning rate of the reference mixture in the Main Test. Therefore Brown 3 is not considered to be an oxidizing substance.
Executive summary:

The purpose of this study was to investigate the oxidising properties of the test item. No further testing is required when the preliminary test clearly indicates that the substance has oxidising properties. This was not the case; so the substance was subjected to the full test. In the main test, the substance to be tested and a defined combustible substance were mixed in various ratios. Each mixture was then formed into a pile and the pile ignited at one end. The maximum burning rate determined was compared with the maximum burning rate of the reference mixture.

The maximum burning rate of the test item in different mixtures was found to be lower than the maximum burning rate of the reference mixture. Therefore, Brown 3 is not considered to be an oxidizing substance.

Description of key information

The purpose of this study was to investigate the oxidizing properties of the test item. The maximum burning rate of the test item found in the 10:90 % mixture was lower than the burning rate of the reference mixture in the Main Test. Therefore Brown 3 is not considered to be an oxidizing substance.

Key value for chemical safety assessment

Oxidising properties:
non oxidising

Additional information

Justification for classification or non-classification