Butyl methacrylate

Structural formula
General
Surname	Butyl methacrylate
other names	Butyl methacrylate; Methacrylic acid n-butyl ester;
Molecular formula	C 8 H 14 O 2
Brief description	colorless liquid with an unpleasant odor
External identifiers / databases
EC number	202-615-1
ECHA InfoCard	100.002.378
PubChem	7354
Wikidata	Q10329087
properties
Molar mass	142.20 g mol −1
Physical state	liquid
density	0.89 g cm −3
Melting point	−75 ° C
boiling point	163 ° C
Vapor pressure	2.7 hPa (20 ° C)
solubility	very sparingly soluble in water (0.36 g l −1 at 25 ° C)
Refractive index	1.423 (20 ° C)
safety instructions
H and P phrases	H: 226-319-335-315-317
	P: 280-302 + 352-305 + 351 + 338
Toxicological data	16000 mg kg −1 ( LD 50 , rat , oral ) ; 10100 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

Methacrylic acid butyl ester is a chemical compound from the group of carboxylic acid esters .

Extraction and presentation

Butyl methacrylate can be obtained by reacting methacrylic acid or methyl methacrylate with butanol .

properties

Methacrylic acid butyl ester is a colorless liquid with an unpleasant odor that is very sparingly soluble in water. It decomposes when heated.

use

Methacrylic acid butyl ester is used as a building block for polymers that are used in paints and varnishes, resins, adhesives, toners and inks, and oil additives for dental and medical products.

safety instructions

The vapors of butyl methacrylate can form an explosive mixture with air ( flash point 50 ° C, ignition temperature 290 ° C). The compound tends to polymerize spontaneously, and added stabilizers can become ineffective as a result of heat or long storage.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Entry on butyl methacrylate in the GESTIS substance database of the IFA , accessed on November 21, 2018(JavaScript required) .
↑ Data sheet Butyl methacrylate, 99%, contains 10 ppm monomethyl ether hydroquinone as inhibitor from Sigma-Aldrich , accessed on November 21, 2018 ( PDF ).
↑ Entry on n-butyl methacrylate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on November 21, 2018. Manufacturers or distributors can expand the harmonized classification and labeling .
↑ Entry on butyl methacrylate in the Hazardous Substances Data Bank , accessed on November 21, 2018.
↑ Data sheet n-Butyl methacrylate, 99%, stab. with 15-20 ppm 4-methoxyphenol from AlfaAesar, accessed on November 21, 2018 ( PDF )(JavaScript required) .

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Entry on butyl methacrylate in the GESTIS substance database of the IFA , accessed on November 21, 2018(JavaScript required) .

[Sigma-2] Data sheet Butyl methacrylate, 99%, contains 10 ppm monomethyl ether hydroquinone as inhibitor from Sigma-Aldrich , accessed on November 21, 2018 ( PDF ).

[CLP_100.002.378-3] Entry on n-butyl methacrylate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on November 21, 2018. Manufacturers or distributors can expand the harmonized classification and labeling .

[HSDB-4] Entry on butyl methacrylate in the Hazardous Substances Data Bank , accessed on November 21, 2018.

[Alfa-5] Data sheet n-Butyl methacrylate, 99%, stab. with 15-20 ppm 4-methoxyphenol from AlfaAesar, accessed on November 21, 2018 ( PDF )(JavaScript required) .