Diisononyl phthalate
| Structural formula | ||||||||||
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| Simplified structural formula - mixture of numerous isomers | ||||||||||
| General | ||||||||||
| Surname | Diisononyl phthalate | |||||||||
| other names |
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| Molecular formula | C 26 H 42 O 4 | |||||||||
| Brief description |
colorless liquid with a very faint odor |
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| properties | ||||||||||
| Molar mass | 418.62 g · mol -1 | |||||||||
| Physical state |
liquid |
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| density |
0.97 g cm −3 (20 ° C) |
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| Melting point |
−40 to −46 ° C |
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| boiling point |
253-267 ° C (700 Pa) |
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| Vapor pressure |
60 Pa (200 ° C) |
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| solubility | ||||||||||
| Refractive index |
1.486 ± 0.001 |
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| safety instructions | ||||||||||
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| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C | ||||||||||
Diisononyl phthalate is a mixture of organic chemical compounds belonging to the phthalate group that is mainly used as a plasticizer . It is a colorless liquid with a very faint odor.
It should be noted that the designation DINP or the CAS numbers, due to the production process, means a mixture of esters of phthalic acid (mostly isomers ) with slightly different types of branching of the alcohol groups. CAS number 28553-12-0 means a mixture of substances with more than 50% alkyl-substituted iso-nonyl but also iso-octyl and iso-decyl alcohols. With CAS number 68515-48-0, the alcohol content consists only of the isomers of dimethylheptanol . In terms of their properties (including toxicological), however, both behave in the same way.
Extraction and presentation
Diisononyl phthalate is produced using a titanium catalyst by reacting phthalic anhydride with isononyl alcohol (isononanol, INA).
properties
Diisononyl phthalate is a colorless liquid with a very faint odor. It has a viscosity of 72–82 mPas at 20 ° C.
use
Diisononyl phthalate is used as a plasticizer with low volatility and good cold behavior (95% of it for PVC , the rest in rubber , paints, adhesives , varnishes , sealants and solvents ). It is similar to DEHP in terms of its molecular structure and chain length , but in many cases it has better properties both in its manufacture and in the products.
safety instructions
As a precaution, diisononyl phthalate must not be used in children's toys. According to the EU report, there are no indications of acute hazards from DINP in humans, whereas Greenpeace refers to toxic effects in animal experiments without further citing the source. In March 2018, following a review by the Risk Assessment Committee (RAC), ECHA found that the reproductive toxicity feared by Danish researchers does not exist and that DINP can still be used in industrial products.
See also
Web links
- Analysis of phthalates (including DINP isomers) with toxicological evaluations ( Memento from March 30, 2009 in the Internet Archive )
- Communication from the Commission on the results of the risk assessment and on risk reduction strategies for the substances: dibutyl phthalate; 3,4-dichloroaniline; Diisodecyl phthalate; 1,2-benzenedicarboxylic acid, di-C9-11 branched alkyl ester, C10-rich; Diisononyl phthalate; 1,2-benzenedicarboxylic acid, di-C8-10 branched alkyl ester, C9-rich; Ethylenediaminetetraacetate; Methyl acetate; Chloroacetic acid; n -Pentane and tetrasodium ethylenediamine tetraacetate In: Official Journal of the European Union , as of April 13, 2006.
Individual evidence
- ↑ a b c d e f g h Entry for CAS no. 28553-12-0 in the GESTIS substance database of the IFA , accessed on February 3, 2018(JavaScript required) .
- ↑ International Chemical Safety Card (ICSC) for Diisonoyl Phthalate at the National Institute for Occupational Safety and Health (NIOSH), accessed December 29, 2011.
- ↑ David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. CRC Press, 2009, ISBN 978-1-4200-9084-0 (English).
- ↑ Data sheet Diisononyl Phthalate from Parchem, accessed on December 29, 2011.
- ↑ a b Federal Institute for Occupational Safety and Health: Data sheet on diisononyl phthalate as of March 12, 2001.
- ↑ Anna Wypych: Databook of Plasticizers . Elsevier, 2017, ISBN 978-1-927885-15-4 , pp. 519 (English, limited preview in Google Book search).
- ^ Arbeitsgemeinschaft PVC und Umwelt eV: Market data plasticizers ( Memento of December 3, 2013 in the Internet Archive ) (PDF; 35 kB).
- ↑ Guide to the use of environmentally friendly substances ( Memento of July 5, 2006 in the Internet Archive ) (PDF; 85 kB) Publisher: UBA, as of February 2003.
- ↑ Decision of the EU Commission of December 7, 1999 .
- ↑ Commodities Ordinance in the version of February 7, 2011 (PDF; 348 kB) see Appendix 1 (to Section 3), No. 8b.
- ^ Greenpeace report on PVC toys ( Memento of December 3, 2013 in the Internet Archive ).
- ↑ Appendix to the ECHA-News (English) published on March 16, 2018, accessed on March 22, 2018.