Diisooctyl phthalate
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Diisooctyl phthalate | |||||||||||||||
other names |
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Molecular formula | C 24 H 38 O 4 | |||||||||||||||
Brief description |
colorless liquid |
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External identifiers / databases | ||||||||||||||||
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properties | ||||||||||||||||
Molar mass | 390.56 g mol −1 | |||||||||||||||
Physical state |
liquid |
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density |
0.98 g cm −3 |
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Melting point |
−40 ° C |
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boiling point |
370 ° C |
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Vapor pressure |
<0.1 Pa (20 ° C) |
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solubility |
practically insoluble in water (0.041–1.3 mg l −1 at 20 ° C) |
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Refractive index |
1.4860 (20 ° C) |
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safety instructions | ||||||||||||||||
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Toxicological data | ||||||||||||||||
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 |
Diisooctyl phthalate is a mixture of branched C 8 phthalic acid esters. It usually contains little unbranched dioctyl phthalate , but can contain bis (2-ethylhexyl) phthalate .
Extraction and presentation
Diisooctyl phthalate can be obtained by reacting phthalic anhydride with 6-methylheptanol in the presence of an acid catalyst or octanol isomer mixtures in an oxo process.
properties
Diisooctyl phthalate is a flammable, hardly flammable, colorless liquid that is practically insoluble in water.
use
Diisooctyl phthalate is used as a plasticizer in polyvinyl chloride (PVC), polyvinyl acetate (PVA), rubber, cellulosic plastic, and polyurethane . It can u. a. occur in end products such as PVC floor coverings, wall cladding, artificial leather, PVC foams, foils and sealing compounds, as well as adhesives based on urethane or PVA and color binders containing PVA.
Web links
- ECHA: Opinion on proposing harmonized classification and labeling at EU level of diisooctyl phthalate , March 9, 2018
Individual evidence
- ↑ a b c d e f g h i j k l Entry on diisooctyl phthalate in the GESTIS substance database of the IFA , accessed on June 24, 2017(JavaScript required) .
- ↑ Data sheet Diisooctyl phthalate, 99% from AlfaAesar, accessed on June 24, 2017 ( PDF )(JavaScript required) .
- ↑ entry to diisooctyl in the Hazardous Substances Data Bank , accessed on 24 June 2017th
- ↑ BfR: Diisooctyl phthalate in earplugs - BfR opinion of 18 September 2003