Benzyl butyl phthalate
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| General | ||||||||||||||||
| Surname | Benzyl butyl phthalate | |||||||||||||||
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| Molecular formula | C 19 H 20 O 4 | |||||||||||||||
| Brief description |
colorless to yellowish, almost odorless liquid |
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| properties | ||||||||||||||||
| Molar mass | 312.37 g · mol -1 | |||||||||||||||
| Physical state |
liquid |
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| density |
1.12 g cm −3 |
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| Melting point |
<−35 ° C |
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| boiling point |
370 ° C |
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| Vapor pressure |
> 1 Pa (110 ° C) |
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| solubility |
practically insoluble in water (3.7 mg l −1 at 25 ° C) |
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| Refractive index |
1.5408 ± 0.0012 |
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| safety instructions | ||||||||||||||||
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| Authorization procedure under REACH |
of particular concern : toxic for reproduction ( CMR ), serious effects on human health are considered probable; subject to approval |
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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 | ||||||||||||||||
Benzyl butyl phthalate is an organic chemical compound from the group of phthalates ( esters of phthalic acid ) that was mainly used as a plasticizer for PVC . It is a colorless, almost odorless, oily liquid.
Extraction and presentation
Benzyl butyl phthalate is produced by reacting the monobutyl ester of phthalic acid with benzyl chloride .
properties
Physical Properties
Benzyl butyl phthalate has a viscosity of 62 mPa · s at 20 ° C. Benzyl butyl phthalate vapors are eleven times heavier than air.
Chemical properties
Benzyl butyl phthalate is the only industrially significant phthalate with different side chains , one of which is a benzyl group .
use
Benzyl butyl phthalate is used as an external plasticizer for polyvinyl and cellulosic thermoplastics, polysulfide , polyurethane , ethyl cellulose and polyvinyl acetate emulsion adhesives . End products are e.g. B. PVC-based floor coverings, surface coatings (e.g. for automobiles), packaging materials, adhesives and electrical installation materials.
safety instructions
In animal experiments at high doses, BBP can impair fertility and the development of the offspring in the womb and was therefore classified by the EU in the group of substances hazardous to reproduction in 2005. It is already forbidden to use BBP in toys and baby articles because the substance is listed in Appendix 1 of the Consumer Goods Ordinance .
On March 31, 2015, with Directive (EU) 2015/863, benzyl butyl phthalate was added to the RoHS substance list. As of July 22, 2019, electrical and electronic equipment containing parts with more than 0.1% by weight BBP in the homogeneous material may no longer be sold in the EU.
proof
Benzyl butyl phthalate can be detected by chromatographic methods (gas or liquid methods) or mass spectrometry .
Web links
- Research report by the Federal Minister for the Environment, Nature Conservation and Nuclear Safety (PDF file; 706 kB) as of December 1997
- Federal Institute for Occupational Safety and Health: Toxicology of Benzylbutylphthalate (PDF file) Status: March 2003
Individual evidence
- ↑ a b c d data sheet benzyl butyl phthalate (PDF) from Merck , accessed on September 25, 2007.
- ↑ a b c d e f Entry on benzyl butyl phthalate in the GESTIS substance database of the IFA , accessed on January 10, 2017(JavaScript required) .
- ↑ Butyl Benzyl Phthalate data sheet from Parchem, accessed on December 29, 2011.
- ↑ Entry on Benzyl butyl phthalate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
- ↑ Entry in the SVHC list of the European Chemicals Agency , accessed on July 7, 2017.
- ↑ Entry in the register of substances subject to authorization of the European Chemicals Agency , accessed on July 7, 2017.
- ^ A b Concise International Chemical Assessment Document (CICAD) for Butyl benzyl phthalate , accessed on November 18, 2014.
- ^ Report from PlasticsEurope Deutschland e. V. ( Memento from April 2, 2015 in the Internet Archive ) (PDF; 222 kB)
- ↑ Excerpt from Directive 2005/84 / EC at Umwelt-online.de
- ↑ EUR-Lex - 32015L0863 - EN - EUR-Lex. Retrieved July 2, 2019 .