Carbamic acid, N-[(butylthio)thioxomethyl]-, butyl ester

Additional physico-chemical information

Administrative data

Endpoint:

other: corrosion to metals

Type of information:

experimental study

Adequacy of study:

key study

Study period:

15 October 2013 - 24 October 2013

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

Also in accordance with GLP principles.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2013

Report date:

2013

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

other: UN no. ST/SG/AC.10/11/Rev.5: Recommendations on the Transport of Dangerous Goods, Part III: Classification Procedures, Test Methods and Criteria Relating to Class 2, Class 3, Class 4, Division 5.1, Class 8 and Class 9, Test C.1, 2009.

Deviations:

no

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

butyl N-[(butylsulfanyl)methanethioyl]carbamate

EC Number:

691-061-8

Cas Number:

1001320-38-2

Molecular formula:

C10H19NO2S2

IUPAC Name:

butyl N-[(butylsulfanyl)methanethioyl]carbamate

Test material form:

solid

Remarks:

yellow grease-like solid

Specific details on test material used for the study:

Molecular formula: C10H19NO2S2
Name: n-butoxycarbonyl n-butyl dithiocarbamate (active ingredient)
CAS Number: 1001320-38-2

Results and discussion

Results:

Uniform corrosion:
The weight losses of the aluminum and steel plates are given in tables hereunder. The weight loss of the aluminum and steel plates was < 13.5%. According to the guidelines, the test for uniform corrosion was negative. Although minimal weight losses on the metals were obtained, it was visually observed that both metal plates had been reacted by the test substance. When immersed into the test solution, during the exposure period the surface of the aluminium plates had become dim. On the surface of the steel plates a black/brown residue was observed and also on the bottom of the glass receptacles.

Localized corrosion:
Localized corrosion was not observed with the steel and aluminium plates.

Any other information on results incl. tables

Table 1. Uniform corrosion - weight loss aluminium plates

	Specimen 1 (g)	Specimen 2 (g)	Specimen 3 (g)	Reference plate (g)
Weight of the plate at the start of the test	5.4396	5.4263	5.4115	-
Weight of the plate at the end of the test after removal of corrosion products using pickling solution	5.4489	5.4279	5.4099	-
Weight of the reference plate before treatment pickling solution	-	-	-	5.4623
Weight of the reference plate after treatment pickling solution	-	-	-	5.4614
Weight loss [%]	-0.19	-0.046	0.013	-

Table 2. Uniform corrosion - weight loss steel plates

	Specimen 1 (g)	Specimen 2 (g)	Specimen 3 (g)	Reference plate (g)
Weight of the plate at the start of the test	15.1120	15.0118	15.0821	-
Weight of the plate at the end of the test after removal of corrosion products using pickling solution	15.0433	14.9511	15.0793	-
Weight of the reference plate before treatment pickling solution	-	-	-	14.9212
Weight of the reference plate after treatment pickling solution	-	-	-	14.9191
Weight loss [%]	0.44	0.39	0.0046	-

Applicant's summary and conclusion

Conclusions:

The corrosion to metals of the test material was determined at 55°C and a 7-day test period using 2 mm aluminium and steel plates. Localized corrosion was not observed and all weight losses were < 13.5 % (i.e. equivalent to 6.25 mm/year corrosion rate). According to this, the test substance is considered to be not corrosive to aluminium and steel.