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Physical & Chemical properties

Stability: thermal, sunlight, metals

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Reference
Endpoint:
stability: thermal, sunlight, metals, other
Type of information:
read-across based on grouping of substances (category approach)
Adequacy of study:
key study
Study period:
From November 03, 1994 to November 17, 1994
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Remarks:
RA study
Justification for type of information:
Refer to the section 13 for details on the read across justification. The stability study with the read across substance is considered sufficient to fulfil the information requirements as further explained in the provided endpoint summary.
Reference:
Composition 1
Qualifier:
according to
Guideline:
other: DIN 50905, Part 4
Deviations:
no
GLP compliance:
not specified
Test material information:
Composition 1

Table 1. Test results

Material

Wint mm/a

Comments

1.0425

 

Pitting with hole depth 50 µm

3.4365

 

Uneven attack, pitting with max. hole depth 30 µm

Wint= Integral removal rateaccording to DIN50905, part 2

Conclusions:
Based on the results of the read across study, the test substance caused pitting with hole depth of 30 and 50 µm in 14 days.
Executive summary:

A study was conducted to determine the stability: thermal, sunlight and metals of the read across substance according to DIN 50905. A 14 days study was performed to determine the metal corrosion potential of the test substance. Based on the results of the read across study, the test substance caused pitting with hole depth of 30 and 50 µm in 14 days. The corrosion rate is expected to be below the 6.25 mm/year cut-off for classification given in the ECHA guidance to Regulation EC 1272/2008, corresponding to an intrusion depth of 240 µm in 14 day (Hoechst, 1994).

Description of key information

The metal corrosion was determined according to DIN 50905 (Hoechst, 1994)

Additional information

Value used for CSA: Not corrosive to metals.

Justification for classification or non-classification

The localised corrosion rate is expected to be below the 6.25 mm/year cut-off in the CLP for classification, based on a hole depth of 30 or 50

µm (as per the results for a 14 day study).