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8.20551

Sigma-Aldrich

1,2-Epoxybutane

for synthesis

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Synonym(s):
1,2-Epoxybutane, Ethyloxirane, 1,2-Butylene oxide
Empirical Formula (Hill Notation):
C4H8O
CAS Number:
Molecular Weight:
72.11
MDL number:
EC Index Number:
203-438-2

vapor pressure

1005 hPa ( 63 °C)

Quality Level

Assay

≥99.0% (GC)

form

liquid

autoignition temp.

370 °C

potency

500 mg/kg LD50, oral (Rat)
1743 mg/kg LD50, skin (Rabbit)

expl. lim.

1.7-19 % (v/v)

pH

7 (20 °C, 50 g/L in H2O)

bp

63 °C/1013 hPa

mp

-130 °C

transition temp

flash point -26 °C

solubility

86.8 g/L

density

0.83 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C4H8O/c1-2-4-3-5-4/h4H,2-3H2,1H3

InChI key

RBACIKXCRWGCBB-UHFFFAOYSA-N

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8.07027109975531537
1,2-Epoxybutane for synthesis

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8.20551

1,2-Epoxybutane

1,2-Propylene oxide for synthesis

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1,2-Propylene oxide

1,2-Epoxybutane 99%

Sigma-Aldrich

109975

1,2-Epoxybutane

form

liquid

form

liquid

form

-

form

-

bp

63 °C/1013 hPa

bp

-

bp

63 °C (lit.)

bp

50-51 °C (lit.)

mp

-130 °C

mp

-112 °C

mp

-

mp

-

solubility

86.8 g/L

solubility

-

solubility

-

solubility

-

density

0.83 g/cm3 at 20 °C

density

0.83 g/cm3 at 20 °C

density

0.829 g/mL at 25 °C (lit.)

density

0.812 g/mL at 25 °C (lit.)

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.830 - 0.831
Identity (IR): passes test

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

5.0 °F - closed cup

Flash Point(C)

-15 °C - closed cup


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