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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
according to UN Manual of Tests and Criteria, Rev. 6 (2015)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
UN Manual of Tests and Criteria: Test O.1 (Test for oxidizing solids)
Version / remarks:
Rev. 6 (2015)

Test material

Constituent 1
Chemical structure
Reference substance name:
Trisodium bis[4-amino-3-[(2-hydroxy-3,5-dinitrophenyl)azo]naphthalene-1-sulphonato(3-)]chromate(3-)
EC Number:
277-759-1
EC Name:
Trisodium bis[4-amino-3-[(2-hydroxy-3,5-dinitrophenyl)azo]naphthalene-1-sulphonato(3-)]chromate(3-)
Cas Number:
74196-16-0
Molecular formula:
C32H16CrN10O16S2.3Na
IUPAC Name:
trisodium bis[4-amino-3-[(2-hydroxy-3,5-dinitrophenyl)azo]naphthalene-1-sulphonato(3-)]chromate(3-)
additive 1
Chemical structure
Reference substance name:
Sodium sulphate
EC Number:
231-820-9
EC Name:
Sodium sulphate
Cas Number:
7757-82-6
Molecular formula:
H2O4S.2Na
IUPAC Name:
disodium sulfate

Results and discussion

Test results (Oxidising solids)open allclose all
Sample tested:
1:1 sample-to-cellulose ratio
Parameter:
mean burning time
Result:
> 180 s
Sample tested:
4:1 sample-to-cellulose ratio
Parameter:
mean burning time
Result:
> 180 s
Sample tested:
reference: 3:7 mixture potassium bromate + cellulose
Parameter:
mean burning time
Result:
115 s

Any other information on results incl. tables

The reference item potassium bromate (Alfa Aesar, lot 10191952, 99.7 %) contained a residual moisture of < 0.1 wt %, determined by drying the substance at 65°C until constant weight. The fraction from 150 µm to 300 µm obtained after sieving was used.

Cellulose powder (Technocel 75, lot G03001614) exhibited already a parcticle size of < 90 µm, mean fibre length of appr. 60 µm and was therefore not sieved. It was dried at 105°C until constant weight (residual moisture was determined to be 6.2 wt.-%).

The test item was sieved and the fraction < 500 µm was used for the test.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The burning time of the mixtures of the test item with cellulose (4:1 and 1:1) was greater than the burning time of the reference mixture of potassium bromate and cellulose (3:7). Based on the test results the test item does not have to be classified as oxidizing solid.
Executive summary:

The objective of this study was the determination of the oxidizing properties of the test item according to the

Recommendations on the TRANSPORT OF DANGEROUS GOODS: Manual of Tests and Criteria, 6thedition, New York and Geneva, 2015: Part III, Division 5.1, Section 34, Test O.1

The burning time of the mixtures of the test item with cellulose (4:1 and 1:1) was greater than the burning time of the reference mixture of potassium bromate and cellulose (3:7). Based on the test results the test item does not have to be classified as oxidizing solid.

Thus, the test item has not to be classified as oxidizing solid according to Regulation (EC) 1272/2008.