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Hexanal

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Name

Hexanal

EINECS 200-624-5
CAS No. 66-25-1 Density 0.801 g/cm3
PSA 17.07000 LogP 1.76560
Solubility 4.8 g/L (20 °C) in water Melting Point -56 °C
Formula C6H12O Boiling Point 127.9 °C at 760 mmHg
Molecular Weight 100.161 Flash Point 26.2 °C
Transport Information UN 1207 3/PG 3 Appearance liquid
Safety 37/39-26-16 Risk Codes 10
Molecular Structure Molecular Structure of 66-25-1 (Hexanal) Hazard Symbols IrritantXi
Synonyms

Caproaldehyde;Caproic aldehyde;Capronaldehyde;Hexaldehyde;Hexanaldehyde;Hexylaldehyde;NSC 2596;n-Caproaldehyde;n-Capronaldehyde;n-Hexanal;n-Hexylaldehyde;

Article Data 514

Hexanal Synthetic route

111-27-3

hexan-1-ol

66-25-1

hexanal

Conditions
ConditionsYield
With 4 A molecular sieve; tetrabutylammonium periodite; sodium ruthenate(VI) In dichloromethane at 20℃; for 24h; Oxidation;100%
With 4 A molecular sieve; tetrabutylammonium perchlorate; Ru-Cu-Al-hydrotalcite In toluene at 60℃; for 24h;100%
With iodosylbenzene; Cl-CH2-PS supported 5-amino-1,10-phenanthroline-Ru In acetonitrile at 60℃; for 2h;100%
3658-93-3

1,1-diethoxyhexane

66-25-1

hexanal

Conditions
ConditionsYield
With water In tetrahydrofuran; diethyl ether at 80℃; under 6000.6 Torr; Inert atmosphere; Autoclave;100%
With dibromotriphenylphosphorane In dichloromethane at -50℃; for 1h;74%
With 6C72H112O8*8H2O In chloroform-d1; water for 1h; Inert atmosphere;
64847-81-0

1,1-hexanediol diacetate

66-25-1

hexanal

Conditions
ConditionsYield
With beta zeolite modified with chlorosulphonic acid (28 wtpercent) In ethanol at 50℃; for 0.0833333h;100%
With ethanol at 50℃; for 0.166667h; chemoselective reaction;98%
With (NH4)3PW12O40 In methanol at 20℃; for 2h;92%
1599-47-9

1,1-dimethoxyhexane

66-25-1

hexanal

Conditions
ConditionsYield
With water In tetrahydrofuran; diethyl ether at 80℃; under 6000.6 Torr; Inert atmosphere; Autoclave;100%
142-62-1

hexanoic acid

66-25-1

hexanal

Conditions
ConditionsYield
With thexylchloroborane-Me2SO4 In dichloromethane for 0.25h; Ambient temperature;99%
With thexylchloroborane-Me2SO4 In dichloromethane for 0.25h; Product distribution; Ambient temperature; other aliphatic and aromatic acids, other products, other times;99%
With thexylbromoborane dimethyl sulfide complex In carbon disulfide; dichloromethane at -20 - 20℃; for 1h;94%
16577-51-8

hexanoic acid Li-salt

66-25-1

hexanal

Conditions
ConditionsYield
With 9-borabicyclo[3.3.1]nonane dimer In tetrahydrofuran for 1h; Ambient temperature;99%
6728-26-3

(E)-2-Hexenal

66-25-1

hexanal

Conditions
ConditionsYield
With hydrogen; sodium dodecyl-sulfate; palladium diacetate In tetrahydrofuran; water at 20℃; under 760.051 Torr; for 0.5h; Reagent/catalyst; chemoselective reaction;98%
With N,N,N,N,N,N-hexamethylphosphoric triamide; diisobutylaluminium hydride In tetrahydrofuran; hexane at 0℃; for 1h;89%
With hydrogen In isopropyl alcohol at 110℃; under 22502.3 Torr; for 3h; Autoclave;35.2%
64214-56-8

N-methoxy-N-methyl hexanamide

66-25-1

hexanal

Conditions
ConditionsYield
With lithium diisobutyl-tert-butoxyaluminum hydride In tetrahydrofuran; hexane at 0℃; Reagent/catalyst; Inert atmosphere; chemoselective reaction;97%
With benzoic acid ethyl ester; copper diisobutyl-t-butoxyaluminum hydride In tetrahydrofuran at 20℃; for 12h; Inert atmosphere; chemoselective reaction;99 %Chromat.
111-27-3

hexan-1-ol

A

6378-65-0

n-hexyl caproate

B

66-25-1

hexanal

Conditions
ConditionsYield
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; sodium hydrogencarbonate; sodium bromide In dichloromethane; water at 0℃; Electrolysis; Saturated solution;A n/a
B 95%
With calcium dichloride dihydrate; oxone; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; water In dichloromethane at 20℃; for 2.5h; Catalytic behavior; Reagent/catalyst; Time; Solvent; Overall yield = 59 %Chromat.;A 91%
B 9%
With oxone; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; tetrabutylammomium bromide; water In dichloromethane at 20℃; for 4h; Catalytic behavior; Overall yield = 7 %Chromat.;A 9%
B 52%
26533-34-6

isopropyl amyl carbinol

66-25-1

hexanal

Conditions
ConditionsYield
With lead(IV) acetate; lithium chloride In benzene at 80℃;95%

Hexanal Chemical Properties

MF: C6H12O
MW: 100.16
EINECS: 200-624-5
mp:  -56 °C 
bp:  130-131 °C(lit.)
density:  0.816 g/mL at 20 °C
vapor density:  >1 (vs air)
vapor pressure:  10 mm Hg ( 20 °C)
FEMA:  2557
refractive index:  n20/D 1.4035(lit.)
Fp:  90 °F
storage temp:  2-8°C
Water Solubility:  4.8 g/L (20 oC)
Sensitive:  Air Sensitive
Merck:  14,1760
BRN:  506198
CAS DataBase Reference: 66-25-1(CAS DataBase Reference)

Hexanal Toxicity Data With Reference

1.   

skn-rbt 500 mg/24H MLD

   85JCAE    Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.: Avicenum,1986,272.
2.   

skn-rbt 14,178 μg/24H open MLD

   AIHAAP    American Industrial Hygiene Association Journal. 23 (1962),95.
3.   

eye-rbt 500 mg/24H MLD

   85JCAE    Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.: Avicenum,1986,272.
4.   

orl-rat LD50:4890 mg/kg

   AMIHBC    AMA Archives of Industrial Hygiene and Occupational Medicine. 10 (1954),61.
5.   

ihl-rat LCLo:2000 ppm/4H

   AMIHBC    AMA Archives of Industrial Hygiene and Occupational Medicine. 10 (1954),61.

Hexanal Consensus Reports

1-HEXANAL is reported in EPA TSCA Inventory.

Hexanal Safety Profile

Hazard Codes:  Xi
Risk Statements:  10
Safety Statements:  37/39-26-16
RIDADR:  UN 1207 3/PG 3
WGK Germany:  1
RTECS:  MN7175000
F:  13
Hazard Note:  Irritant
HazardClass:  3
PackingGroup:  III
Hazardous Substances Data: 66-25-1(Hazardous Substances Data)
Mildly toxic by ingestion and inhalation. An irritant to skin and eyes. Flammable liquid. A dangerous fire hazard when exposed to heat or flame; can react vigorously with oxidizing materials. When heated to decomposition it emits acrid smoke and fumes.

Hexanal Standards and Recommendations

DOT Classification:  3; Label: Flammable Liquid

Hexanal Specification

1、Fire Fighting Measures of Hexanal 
General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Vapors can travel to a source of ignition and flash back. Will burn if involved in a fire. Flammable liquid and vapor. 
Extinguishing Media: Use foam, dry chemical, or carbon dioxide. Cool containers with flooding quantities of water until well after fire is out. 
2、Handling and Storage of Hexanal  
Handling: Use with adequate ventilation. Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. 
Storage: Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Flammables-area. 
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