Dibutyl maleic acid

Structural formula
General
Surname	Dibutyl maleic acid
other names	Dibutyl maleate; (Z) -2-Butenedioic acid dibutyl ester; Dibutyl maleate;
Molecular formula	C 12 H 20 O 4
Brief description	colorless to yellowish liquid with a characteristic odor
External identifiers / databases
EC number	203-328-4
ECHA InfoCard	100.003.027
PubChem	5271569
ChemSpider	4436356
Wikidata	Q27260622
properties
Molar mass	228.29 g mol −1
Physical state	liquid
density	0.99 g cm −3
Melting point	−85 ° C
boiling point	280 ° C
Vapor pressure	0.0027 hPa (20 ° C)
solubility	very sparingly soluble in water (0.17 g l −1 at 20 ° C)
Refractive index	1.445 (20 ° C)
safety instructions
H and P phrases	H: 317-373-411
	P: 273-280-302 + 352-314
Toxicological data	3700 mg kg −1 ( LD 50 , rat , oral ) ; 10000 mg kg −1 ( LD 50 , rabbit , transdermal ) ;
	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

Maleic acid dibutyl ester is a chemical compound from the group of carboxylic acid esters .

Extraction and presentation

Dibutyl maleic ester can be obtained by reacting maleic anhydride and 1-butanol in the presence of p-toluenesulfonic acid.

properties

Maleic acid dibutyl ester is a flammable, hardly inflammable, oily, colorless to yellowish liquid with a characteristic odor, which is very sparingly soluble in water.

use

Maleic acid dibutyl ester is mainly used as a plasticizer for aqueous dispersions of copolymers with vinyl acetate and as an intermediate for the production of other chemical compounds.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l Entry on maleic acid dibutyl ester in the GESTIS substance database of the IFA , accessed on April 3, 2019(JavaScript required) .
↑ Data sheet dibutyl maleate, 96% from Sigma-Aldrich , accessed on April 3, 2019 ( PDF ).
↑ Wen, R & Long, L & Ding, L & Yu, Silas. (2001). Study on synthesis of dibutyl maleate. Jishou Daxue Xuebao / Journal of Jishou University. 22. 78-80.
↑ B. Trivedi: Maleic anhydrides . Springer Science & Business Media, 2013, ISBN 978-1-4757-0940-7 , pp. 277 ( limited preview in Google Book search).
↑ OECD : Screening Information Dataset (SIDS) Initial Assessment Report (SIAR) for Dibutyl maleate , accessed on April 3, 2019.

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l Entry on maleic acid dibutyl ester in the GESTIS substance database of the IFA , accessed on April 3, 2019(JavaScript required) .

[Sigma-2] Data sheet dibutyl maleate, 96% from Sigma-Aldrich , accessed on April 3, 2019 ( PDF ).

[3] Wen, R & Long, L & Ding, L & Yu, Silas. (2001). Study on synthesis of dibutyl maleate. Jishou Daxue Xuebao / Journal of Jishou University. 22. 78-80.

[B._Trivedi-4] B. Trivedi: Maleic anhydrides . Springer Science & Business Media, 2013, ISBN 978-1-4757-0940-7 , pp. 277 ( limited preview in Google Book search).

[SIDS-5] OECD : Screening Information Dataset (SIDS) Initial Assessment Report (SIAR) for Dibutyl maleate , accessed on April 3, 2019.