Propyl acetate
The propyl acetate (also propyl acetates ) are among the organic-chemical substances and form a group of two structurally saturated Carbonsäureestern . They are the esters of acetic acid with the two isomeric propanols: n- propanol and isopropanol . They have the general molecular formula C 5 H 10 O 2 and a molar mass of 102.13 g / mol.
presentation
The two propyl acetate can be synthesized on an industrial scale by an acid-catalyzed esterification of acetic acid and 1-propanol or 2-propanol .
The equilibrium reaction can be shifted in the direction of the products by removing water .
properties
Propyl acetate | ||||||
Surname | Acetic acid n- propyl ester | Isopropyl acetate | ||||
other names | n -propyl acetate | Isopropyl acetate | ||||
Structural formula | ![]() |
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CAS number | 109-60-4 | 108-21-4 | ||||
PubChem | 7997 | 7915 | ||||
ECHA InfoCard | 100.003.352 | 100.003.238 | ||||
Physical state | liquid | |||||
Molar mass | 102.13 g mol −1 | |||||
Melting point | −95 ° C | −73 ° C | ||||
boiling point | 102 ° C | 89 ° C | ||||
density | 0.89 g cm −3 (20 ° C) | 0.88 g cm −3 (20 ° C) | ||||
Vapor pressure | 33 hPa (20 ° C) | 62 hPa (20 ° C) | ||||
Solubility in water |
21.2 g l −1 (20 ° C) | 31 g l −1 (20 ° C) | ||||
Flash point | 10 ° C | 1.5 ° C | ||||
Ignition temperature | 455 ° C | 425 ° C | ||||
Explosion limits | 1.7 to 8.0% | 1.8 to 8.0% | ||||
GHS labeling |
from Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
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from Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
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H and P phrases | 225-319-336 | |||||
066 | ||||||
210-240-261-305 + 351 + 338 | 210-305 + 351 + 338-370 + 378-403 + 235 | |||||
Tox data | 9370 mg kg −1 ( LD 50 , rat , oral ) | 6750 mg kg −1 ( LD 50 , rat , oral ) |
use
Propyl acetate is used in particular as a solvent for various natural and synthetic resins in the paint, printing inks and chemical-technical industries.
Individual evidence
- ↑ Entry on propyl acetate. In: Römpp Online . Georg Thieme Verlag, accessed on December 27, 2019.
- ↑ Ying Liu, Jia Liu, Hanzhao Yan, Zheng Zhou, Aidong Zhou: Kinetic Study on Esterification of Acetic Acid with Isopropyl Alcohol Catalyzed by Ion Exchange Resin. In: pubs.acs.org. January 1, 1970, accessed December 27, 2019 .
- ↑ a b c d e f g h i j k l m Entry on acetic acid n-propyl ester in the GESTIS substance database of the IFA , accessed on December 26, 2019(JavaScript required) .
- ↑ a b c d e f g h i j k l m Entry on isopropyl acetate in the GESTIS substance database of the IFA , accessed on December 26, 2019(JavaScript required) .
- ↑ Entry on propyl acetate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on December 26, 2019. Manufacturers or distributors can expand the harmonized classification and labeling .
- ↑ Entry on isopropyl acetate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on December 26, 2019. Manufacturers or distributors can expand the harmonized classification and labeling .