[nitrilotris(methylene)]trisphosphonic acid, ammonium salt

Monitoring data

Administrative data

Endpoint:

monitoring data

Type of information:

experimental study

Adequacy of study:

supporting study

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

other: Relatively well documented literature paper; reliability unassignable because sampling schedule, methods, storage etc. not validated.

Data source

Reference

Reference 1

Reference Type:

review article or handbook

Title:

No information

Author:

Nowack B

Year:

1998

Bibliographic source:

The Behaviour of Phosphonates in Waste water Treatment Plants of Switzerland. Wat. Res. 32, No. 4, pp 1271-1279

Reference 2

Reference Type:

publication

Title:

Aminopolyphosphonate removal during waste water treatment

Author:

Nowack B

Year:

2002

Bibliographic source:

Wat. Res., Vol. 36, pp 4636-4642

Materials and methods

Media:

surface water

Test material

Test material information

Constituent 1

Reference substance name:

Nitrilotrimethylenetris(phosphonic acid)

EC Number:

229-146-5

EC Name:

Nitrilotrimethylenetris(phosphonic acid)

Cas Number:

6419-19-8

Molecular formula:

C3H12NO9P3

IUPAC Name:

[nitrilotris(methylene)]tris(phosphonic acid)

Results and discussion

Any other information on results incl. tables

The substance was detected in Swiss waste water treatment plants in a study conducted in 1996.  Concentrations in the influent were between <0.015 mg/l to 0.25 mg/l.  The highest concentration found was associated with a significant input from the textile industry.  For all plants, the substance could not be detected in effluent. In a later paper, the same author reports 93% removal over a two-week period in a German plant. Concentrations in the influent were between 0.06 mg/l to 0.33 mg/l.