Atrazine

Oxidising properties

Administrative data

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

from 24 May 1993 to 22 February 1994

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1994

Report date:

1994

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

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

Deviations:

not specified

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

Atrazine

EC Number:

217-617-8

EC Name:

Atrazine

Cas Number:

1912-24-9

Molecular formula:

C8H14ClN5

IUPAC Name:

6-chloro-N2-ethyl-N4-(propan-2-yl)-1,3,5-triazine-2,4-diamine

Details on test material:

Atrazine (technical)
Batch n. 2653, Ref 743
Purity: 97.5%
Expiry: stable until at least January 1995
Appaerance: white powder
Storage conditions: in the dark at 4°C

Study design

Contact with:

powdered cellulose

Results and discussion

Test results (Oxidising solids)

Test results (Oxidising solids) 1

Sample tested:

test mixture (not specified)

Remarks:

migrated information

Parameter:

maximum burning rate

Remarks on result:

other: result not specified (migrated information)

Remarks:

None of the test substance/cellulose mixtures burnt for the full 200 mm.

Test results (Oxidising solids) 2

Sample tested:

reference mixture (not specified)

Remarks:

migrated information

Parameter:

maximum burning rate

Result:

2.22 other: mm/s (migrated information)

Remarks on result:

other: the mixture contained 60% of barium nitrate

Any other information on results incl. tables

Burning rate for barium nitrate/cellulose mixtures:

Barium nitrate %	Burning time over 200 mm	Burning rate (mm/s)	Observations
10.2	280	0.71	Burnt across the surface with an orange flame and occasional sparking
19.8	289	0.69	Burnt across the surface with a yellow/orange flame. Low level sparking, a little white ash left.
29.9	256	0.78	Burnt across the surface with a yellow/orange flame. Low level sparking, a little white ash left.
39.9	150	1.33	Burnt across the surface with a yellow/orange flame. Low level sparking, a little white ash left.
50.0	103	1.94	Burnt through the pile with a yellow/orange flame, continuous sparking, 50% white ash left.
59.9	90	2.22	Burnt through the pile with a yellow/orange flame, lots of sparking and some white smoke, white ash and some fused material left.
69.9	137	1.46	Burnt through the pile with a yellow flame, lots of sparking and white smoke, trail of fused material left.
80.1	-	-	Burnt for 10 mm with an almost white flame.
90.0	-	-	Burnt around the igniter with a small white flame.

Burning rate for test substance/cellulose mixtures:

Test substance %	Burning time over 200 mm	Burning rate (mm/s)	Observations
10	-	-	Burnt across the surface with a blue orange tinted flame for 180 mm, a little smoke emitted.
20	-	-	Burnt across the surface with a blue orange tinted flame for 160 mm, a little smoke emitted.
30.2	-	-	Burnt across the surface with a blue orange tinted flame for 30 mm, a little smoke emitted.
40.2	-	-	Burnt across the surface with a blue orange tinted flame for 10 mm, a little smoke emitted.
50.0	-	-	Burnt only around the ignitor with a blue flame.
60	-	-	Burnt only around the ignitor with a blue flame.
69.5	-	-	Burnt only around the ignitor with a blue flame.
79.7	-	-	Burnt only around the ignitor with a blue flame.
89.6	-	-	Burnt only around the ignitor with a blue flame.

Applicant's summary and conclusion

Interpretation of results:

other: no oxidising properties

Remarks:

Migrated information

Conclusions:

Under the conditions of this test atrazine (technical) is not considered to have oxidising properties.