PENTYL ETHER Property

Melting point:

−69 °C(lit.)

Boiling point:

187-188 °C(lit.)

Density 

0.785 g/mL at 25 °C(lit.)

vapor density 

5.46

vapor pressure 

0.7 hPa (20 °C)

refractive index 

n20/D 1.412(lit.)

Flash point:

135 °F

storage temp. 

Store below +30°C.

Water Solubility 

Insoluble in water

form 

Liquid

color 

Colorless to Almost colorless

explosive limit

2.0-8.0%(V)

Merck 

14,608

BRN 

1698030

Dielectric constant

3.1（16℃）

Stability:

Stable. Flammable. Incompatible with strong oxidising agents.

CAS DataBase Reference

693-65-2(CAS DataBase Reference)

EPA Substance Registry System

Pentane, 1,1'-oxybis- (693-65-2)

Safety

Risk Statements 

10

Safety Statements 

16

RIDADR 

UN 3271 3/PG 3

WGK Germany 

3

RTECS 

SC2900000

Autoignition Temperature

180 °C

HS Code 

2909 19 90

HazardClass 

3.2

PackingGroup 

III

Toxicity

LD50 ivn-mus: 164 mg/kg JPMSAE 67,566,78

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H226Flammable liquid and vapour

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P242Use only non-sparking tools.

P243Take precautionary measures against static discharge.

PENTYL ETHER Chemical Properties,Usage,Production

Chemical Properties

Commercial diamyl ether consists principally of di-n-amyl ether and di-isoamyl ether, with small percentages of isomeric amyl ethers and diamylene. It is a colorless to light yellow liquid which is quite stable. It is insoluble in water but soluble in methanol, ethyl ether, ethyl acetate, acetone, aliphatic and aromatic hydrocarbons, fixed oils, oleic and hot stearic acids, hot paraffin and carnauba waxes, the latter two solidifying when cooled. Unlike the lower aliphatic ethers, it will not dissolve nitrocellulose when admixed with ethanol. However, a mixture of diamyl ether and 20% ethanol will dissolve ethylcellulose.

Uses

Industrial solvent.

Uses

Dipentyl ether has been used to compose the binary mixtures with various imidazole derivatives. Solid-liquid equilibrium (SLE) of these binary mixtures have been evaluated by a dynamic method.

Preparation

1、Pentyl ether can be prepared from iso-Amylalcohol by dehydration.
2、It can be prepared from iso-Amylbromide and Sodium amylalcoholate.

General Description

Dipentyl ether (1,1-Dipentyl ether, DPeE) is an aliphatic diether. It is formed as one of the major product during the dehydration of pentan-1-ol.

Hazard

Narcotic in high concentration.

Industrial uses

The commercial diamyl ether consists of a blend of di-AZ-amyl and di-iso-amyl ether, a small amount of isomeric amyl ethers and diamylene. A blend of diamyl ether and 20% ethanol will dissolve ethyl cellulose.

Safety Profile

Poison by intravenous route. Flammable liquid when exposed to heat or flame; reacts with oxidizing materials. To fight fire, use alcohol foam, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes. See also ETHERS

Purification Methods

Repeatedly reflux amyl ether over sodium and distil it. [Beilstein 1 IV 1643.]