4-methyl-2-pentanol

Structural formula
	Structural formula without stereochemistry
General
Surname	4-methyl-2-pentanol
other names	Methyl isobutyl carbinol; 4-methyl-2-amyl alcohol; 4-methyl-2-pentyl alcohol; 4-methylpentan-2-ol; ( RS ) -Methylisobutylcarbinol; ( RS ) -4-methyl-2-amyl alcohol; ( RS ) -4-methyl-2-pentyl alcohol; ( RS ) -4-methylpentan-2-ol;
Molecular formula	C 6 H 14 O
Brief description	colorless liquid with a sweet odor
External identifiers / databases
EC number	203-551-7
ECHA InfoCard	100.003.229
PubChem	7910
Wikidata	Q2528979
properties
Molar mass	102.17 g mol −1
Physical state	liquid
density	0.81 g cm −3
Melting point	−90 ° C
boiling point	130-132 ° C
Vapor pressure	7 mbar (20 ° C)
solubility	slightly soluble in water (16.4 g l −1 at 20 ° C)
Refractive index	1.410 (20 ° C)
safety instructions
H and P phrases	H: 226-319-335
	P: 210-305 + 351 + 338-370 + 378
MAK	Switzerland: 20 ml m −3 or 85 mg m −3
Toxicological data	2850 mg kg −1 ( LD 50 , rabbit , transdermal ) ; 2590 mg kg −1 ( LD 50 , rat , oral ) ;
	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

4-methyl-2-pentanol is a chemical compound from the group of racemic alcohols . When 4-methyl-2-pentanol is mentioned in this article or in the scientific literature without a prefix , one means the 1: 1 mixture ( racemate ) of the two enantiomeric forms, i.e. ( R ) -4-methyl-2- pentanol and ( S ) -4-methyl-2-pentanol.

Extraction and presentation

4-Methyl-2-pentanol can be produced by reducing mesityl oxide in acetic acid solution with platinum as a catalyst .

properties

4-methyl-2-pentanol is a slightly volatile, flammable, colorless liquid with a sweet odor that is not very soluble in water. It decomposes when heated.

use

4-Methyl-2-pentanol is mainly used for the production of lubricating oil additives and as a frother for the flotation of metal ores. It is also used as an internal standard for characterizing a volatile fraction of wines.

safety instructions

The vapors of 4-methyl-2-pentanol can form an explosive mixture with air ( flash point 40.5 ° C, ignition temperature 335 ° C).

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l Entry on 4-methyl-2-pentanol in the GESTIS substance database of the IFA , accessed on January 10, 2017(JavaScript required) .
↑ ^a ^b ^c data sheet 4-methyl-2-pentanol, 98% from Sigma-Aldrich , accessed on September 7, 2015 ( PDF ).
↑ Entry on 4-methylpentan-2-ol in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on August 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
↑ Swiss Accident Insurance Fund (Suva): Limit values - current MAK and BAT values (search for 108-11-2 or 4-methyl-2-pentanol ), accessed on November 2, 2015.
^ Dow: Product Safety Assessment DOW ™ Methyl Isobutyl Carbinol

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l Entry on 4-methyl-2-pentanol in the GESTIS substance database of the IFA , accessed on January 10, 2017(JavaScript required) .

[Sigma-2] ta sheet 4-methyl-2-pentanol, 98% from Sigma-Aldrich , accessed on September 7, 2015 ( PDF ).

[CLP_100.003.229-3] Entry on 4-methylpentan-2-ol in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on August 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .

[4] Swiss Accident Insurance Fund (Suva): Limit values - current MAK and BAT values (search for 108-11-2 or 4-methyl-2-pentanol ), accessed on November 2, 2015.

[Dow-5] Dow: Product Safety Assessment DOW ™ Methyl Isobutyl Carbinol