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34857

Sigma-Aldrich

1,4-Dioxane

suitable for HPLC, ≥99.5%

Synonym(s):
Diethylene oxide, Dioxane
Empirical Formula (Hill Notation):
C4H8O2
CAS Number:
Molecular Weight:
88.11
Beilstein:
102551
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor density

3 (vs air)

Quality Level

vapor pressure

27 mmHg ( 20 °C)
40 mmHg ( 25 °C)

assay

≥99.5%

form

liquid

autoignition temp.

356 °F

expl. lim.

22 %

technique(s)

HPLC: suitable

impurities

≤0.001% non-volatile matter
≤0.002% free acid (as CH3COOH)
≤0.01% peroxides (as H2O2)
≤0.05% water (Karl Fischer)

transmittance

220 nm, ≥20%
270 nm, ≥80%
300 nm, ≥98%

refractive index

n20/D 1.422 (lit.)

pH

6.0-8 (20 °C, 500 g/L)

bp

100-102 °C (lit.)

mp

10-12 °C (lit.)

density

1.034 g/mL at 25 °C (lit.)

UV absorption

λ: 220 nm Amax: ≤0.70
λ: 235 nm Amax: ≤0.50
λ: 250 nm Amax: ≤0.20
λ: 270 nm Amax: ≤0.10
λ: 295-400 nm Amax: ≤0.01

application(s)

food and beverages

SMILES string

C1COCCO1

InChI

1S/C4H8O2/c1-2-6-4-3-5-1/h1-4H2

InChI key

RYHBNJHYFVUHQT-UHFFFAOYSA-N

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General description

1,4-Dioxane is widely used as a solvent for various organic compounds in industry. It is a non-biodegradable contaminant found in industrial effluents. Its oxidative degradation by using oxygen and ozone has been useful in converting it into biodegradable products, which can be easily removed by conventional methods.

Application

1,4-Dioxane may be employed as a solvent in the synthesis of N-(4-(prop-2-ynyloxy)phenyl)acetamide and 3-(4-(prop-2-ynyloxy)phenyl)-3,4-dihydro-2H-benzo[e][1,3]oxazine.
High-purity, multipurpose solvent, tested for suitability in:
  • HPLC
  • Spectrophotometry
  • Residual testing
  • LC-MS applications.

Reported as a solvent in:
  • HPLC-MS study of fat-soluble vitamins (FSVs)
  • GC-MS analysis of phthalates in workplace air

Suitable for HPLC, spectrophotometry, environmental testing

Packaging

100, 500 mL in glass bottle
1, 6×1, 2 L in glass bottle

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Signal Word

Danger

Hazard Statements

Hazard Classifications

Carc. 1B - Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3

Target Organs

Respiratory system

Supplementary Hazards

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

51.8 °F - closed cup

Flash Point(C)

11 °C - closed cup

Certificate of Analysis

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Certificate of Origin

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