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Physical & Chemical properties

Storage stability and reactivity towards container material

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Reference
Endpoint:
storage stability and reactivity towards container material
Type of information:
experimental study
Adequacy of study:
key study
Study period:
October 2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
other: UN Transport of Dangerous Goods Regulations, Chapter 2.8, Class 8 - Corrosive Substances, tests and criteria, Part III, Section 37.
GLP compliance:
no
Type of method:
accelerated testing
Specific details on test material used for the study:
TEST CONDITIONS
- Study duration: 7 days
- Temperature: 55°C
- Sampling times: After 7 days

Results:
PRODUCT APPEARANCE
- Changes in colour: The test liquid showed a change in colour from reddish to dark brown.
- Changes in odour: no data

TEST SPECIMEN APPEARANCE
Aluminium
- Description of changes:
In air; almost no corrosion was observed
Half submerged; A brown deposit was observed on part of the portion in the air. Black corrosion was observed on the portion in the liquid.
Fully submerged; Black corrosion was observed on the whole surface of the test specimen.

Steel
- Description of changes:
In air; The whole surface of the test specimen was rusted.
Half submerged; A white deposit was observed on part of the portion in the air. A green deposit was observed on the protion in the liquid.
Fully submerged; A dark brown deposit was observed on the whole surface of the test specimen.


MASS CHANGES
Aluminium
- Amount of penetration / g:
In air: 0.013
Half submerged: 1.531
Fully submerged: 3.350

- Rate of penetration mm/yr:
In air: 0.11
Half submerged: 12.62
Fully submerged: 27.65


Steel
- Amount of penetration / g:
In air: 0.19
Half submerged: 0.012
Fully submerged: 0.019

- Rate of penetration mm/yr:
In air: 0.57
Half submerged: 0.04
Fully submerged: 0.06

CHANGE IN ACTIVE INGREDIENTS
- Results: no data
Transformation products:
not measured
Storage stability / reactivity towards container material:
corrosive to container material

Severe corrosion was observed on the aluminium test specimen. However, almost no corrosion was observed on the steel test specimen.

Conclusions:
The test material, Epofloc L-1R, falls under the category of "metal corrosives" defined in Article 3, paragraph 8 of the "Hazardous Goods Ship Transportation and Storage Regulations".

Description of key information

The test material, Epofloc L-1R, falls under the category of "metal corrosives" defined in Article 3, paragraph 8 of the "Hazardous Goods Ship Transportation and Storage Regulations".

Additional information

Substances are classified for metal corrosion if the corrosion rate on either steel or aluminium surfaces exceeds 6,25 mm per year at a test temperature of 55°C when tested on both materials. Therefore this substance will be classified as; Warning, GHS05: Corrosion, H290 - May be corrosive to metals.