 1.
What are the properties of DIDP and DINP?
DIDP
"IDENTIFICATION
OF THE SUBSTANCE
In this risk assessment
report two di “isodecyl” phthalate
products (hereafter referred to as DIDP)
are evaluated. There are two different
CAS numbers. Following specific information
from the European Council for Plasticizers
& Intermediates, these two products
are prepared essentially from the same
feed, through an identical olefin oligomerisation
process and through similar alcohol manufacturing
and phthalate esterification processes.
The two phthalates
are therefore considered fully interchangeable
within their whole range of the market
end-uses. Only one risk assessment is
performed for the two compounds.
CAS Number: 68515-49-1
and 26761-40-0
EINECS Number: 271-091-4 and 247-977-1
IUPAC Name: 1,2-Benzenedicarboxylic acid,
di-C9-11 branched alkyl esters, C9
rich and di-“isodecyl” phthalate
Molecular weight: Average 446.68
Molecular formula: C28H46O4
(average)
PHYSICO-CHEMICA
L PROPERTIES
Table 1.1 Summary
of physico-chemical properties
|
Property
|
Value
|
|
Melting point
|
-53 to -39°C (av. -45°C)
|
|
Boiling point
|
> 400°C
|
|
Density
|
0.966 at 20°C
|
|
Vapour pressure
|
5.1.10-5 Pa at 25°C
|
|
Water solubility
|
0.2 µg/l at 20°C
|
|
Henry’s law constant
|
114 Pa.m3/mol
|
|
Log Kow
|
8.8
|
|
Flash point
|
> 200°C
|
|
Autoflammability
|
ca. 380°C
|
|
Viscosity
|
ca. 130 mPa.s
|
CLASSIFICATION
No classification."
Source
& © : ECB
 "2003
Risk Assessment Report (RAR 041) on
Di-"isodecyl" Phthalate (DIDP),
Summary of the Report, chapter 1: General
Substance Information
For more information,
see the full ECB Risk Assessment Report:
Chapter
1: General Substance Information
DINP
"IDENTIFICATION OF
THE SUBSTANCE
CAS Number: 68515-48-0
and 28553-12-0
EINECS Number: 271-090-9
and 249-079-5
IUPAC Name: 1,2-Benzenedicarboxylic acid,
di-C8-10 branched alkylesters, C9
rich and di-“isononyl” phthalate
Molecular weight: Average
420.6
Molecular formula: C8+2xH6+4xO4
with x = 8 to 10
(x = 9 as main constituent),
average C26H42O4
PHYSICO-CHEMICAL
PROPERTIES
Table 1.1
Summary of physico-chemical properties
|
Property
|
Value
|
|
Melting point
|
ca. -50°C
|
|
Boiling point
|
> 400°C
|
|
Density
|
ca. 0.975 at 20°C
|
|
Vapour pressure
|
6 . 10-5
Pa at 20°C
|
|
Water solubility
|
0.6 µg/l
at 20°C
|
|
Henry’s law constant
|
41.4 Pa.m3/mol
|
|
Log Kow
|
8.8
|
|
Flash point
|
> 200°C
|
|
Autoflammability
|
ca. 380°C
|
|
Viscosity
|
ca. 100-150 mPa.s
|
CLASSIFICATION
No classification."
Source
& © : ECB
"2003
Risk Assessment Report (RAR 046) on
Di-"isononyl" Phthalate (DINP), Summary
of the Report, chapter 1: General Substance
Information
For more information,
see the full ECB Risk Assessment Report:
Chapter
1: General Substance Information
|
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