Disodium 2,5-dichloro-4-[4-[[5-[[(dodecyloxy)carbonyl]amino]-2-sulphonatophenyl]azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulphonate

Mode of degradation in actual use

Administrative data

Endpoint:

mode of degradation in actual use

Type of information:

experimental study

Adequacy of study:

weight of evidence

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

documentation insufficient for assessment

Data source

Reference

Reference Type:

other company data

Title:

Unnamed

Year:

1975

Report date:

1975

Materials and methods

Principles of method if other than guideline:

Stability test according to the Hoechst Nr.4, November 1973

GLP compliance:

no

Remarks:

pre GLP

Test material

Test material information

Constituent 1

Reference substance name:

Acid Yellow 218

IUPAC Name:

Acid Yellow 218

Results and discussion

Any other information on results incl. tables

	Concentration (mg TOC/l)	Day	Elimination (%)		Time
			Average	Dispersal
Sludge	400	14	17	8 – 21	6 – 14
	120	14	37	35 – 40	8 – 14
Adapted sludge	120	14	76	71 – 81	10 – 14

Applicant's summary and conclusion

Conclusions:

Bioelimination (14h): 17 - 37 %, with sudge
Bioelimination (14h): 76 % with adapted sludge

Executive summary:

The bioelimination potential fo the test item was assessed by stability test according to the Hoechst Nr.4, November 1973. The evaluation was performed with sludge and with adapted sludge, over a period of 14 days.

Bioelimination (14h): 17 - 37 %, with sludge

Bioelimination (14h): 76 % with adapted sludge.