[(methylethylene)bis(oxy)]dipropanol

Distribution modelling

Administrative data

Endpoint:

distribution modelling

Type of information:

calculation (if not (Q)SAR)

Remarks:

Migrated phrase: estimated by calculation

Adequacy of study:

supporting study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Unpublished report of EA and MITI, Japan (1993) not available. However, study was considered acceptable according to OECD SIDS

Data source

Reference

Reference Type:

review article or handbook

Title:

SIDS Initial Assessment Report for Tripropylene glycol

Author:

OECD

Year:

1994

Materials and methods

Model:

calculation according to Mackay, Level III

Media:

other: air-soil-water-sediment

Test material

Reference

Name:

Unnamed

Type:

Constituent

Results and discussion

Percent distribution in media

Air (%):

0

Water (%):

9

Soil (%):

34

Sediment (%):

57

Susp. sediment (%):

0

Biota (%):

0

Aerosol (%):

0

Any other information on results incl. tables

The potential environmental distribution of tripropylene glycol was obtained from a generic fugacity model, Mackay level III. The

results show that when 1,4- is released into water, the majority of the chemical is likely distributed into soil and sediment.

PECs have been calculated based on several models (MNSEM, CHEMCAN, CHEMFRN) considering its physico-chemical properties (e.g. molecular weight, water solubility, vapour pressure and partition coefficient). The estimated concentrations of MNSEM

model w ere 9.7 E-11 mg/l (air), 8.3 E-6 mg/l (water), 3.0 E-5 mg/kg (soil), 5.0 E-5 mg/kg (sediment).

Steady state mass and concentration calculated using MNSEM 147S:

Air: 9.7E-11 mg/l

Water: 8.3E-06 mg/l

Soil: 3.0E-05 mg/kg dry solid

Sediment: 5.0E-05 mg/kg dry solid

Input data:

Molecular weight: 192.26

Water solubility: 1000000 [mg/l]

Vapor pressure: 1.05E+00 [mmHg]

Log Pow: 0.60