Are 1,4-Dioxane and 1,3-Dioxolane interchangeable solvents?

No. 1,4-dioxane is CAS 123-91-1, while 1,3-dioxolane is a different cyclic acetal with a different CAS number and reactivity. Confirm the full name, CAS number, water content and stabilizer or inhibitor status before approving a substitute solvent.

Which release specifications matter for 1,4-Dioxane?

Agree GC assay, water, peroxide value, aldehydes, acidity, nonvolatile residue, color and relevant ether or glycol-ether impurities. Peroxide control is important because ethers can form peroxides during storage. The COA should state the test methods, production date and whether the result is for stabilized material.

What must be checked for bulk 1,4-Dioxane handling?

Confirm the approved package, seals, previous-cargo cleanliness, vapor control, grounding, ventilation and receiving-tank capacity. Check the current SDS and destination transport requirements before shipment. Avoid prolonged storage, contamination and heat, and document peroxide testing and container-opening controls at the receiving site.

1,4-Dioxane CAS 123-91-1

1,4-Dioxane, CAS 123-91-1, is also known as diethylene dioxide or p-dioxane. It is a cyclic ether and polar aprotic solvent used in controlled industrial and process applications. This page does not establish pharmaceutical-grade or consumer-product suitability. Confirm assay, water, peroxide value, acidity, nonvolatile residue, stabilization or storage requirements, packaging compatibility, and current TDS, COA, and SDS.

CAS: 123-91-1
Synonyms: p-Dioxane, 1,4-diethylene dioxide, Diethylene dioxide, Dioxane
Einecs: 204-661-8
Molecular Formula: C₄H₈O₂
Grade: Confirm assay, water, peroxide value, acidity, nonvolatile residue, and any stabilization or storage requirement
Package: Confirm packaging compatible with the offered liquid, transport classification, and destination requirements

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Product Description

Product name: 1,4-Dioxane

Recognized names: 1,4-Dioxane; p-Dioxane; diethylene dioxide; diethylene ether

Chemical identity: 1,4-Dioxane is a cyclic ether and polar aprotic solvent. It is used only in controlled industrial and process settings; this page does not establish pharmaceutical grade or consumer-product suitability.

CAS Number: 123-91-1

EINECS accession number: 204-661-8

Chemical formula: C₄H₈O₂

Molar mass: 88.11 g/mol

Melting point: 12 °C

Boiling point: 101 °C

Water solubility: miscible with water

Density: 1.033 g/cm³

Flash point: 12 °C

Technical use: solvent or process medium for selected resins, oils, waxes, and controlled chemical synthesis. Suitability must be assessed against the buyer’s process, impurity limits, exposure controls, and destination requirements.

Offered specification: confirm assay, water, peroxide value, acidity, nonvolatile residue, and stabilization or storage requirements

Packaging: confirm a compatible package for the offered solvent, transport classification, and destination requirements

FAQ - Technical & Supply Chain

Q:
Are 1,4-Dioxane and 1,3-Dioxolane interchangeable solvents?

A: No. 1,4-dioxane is CAS 123-91-1, while 1,3-dioxolane is a different cyclic acetal with a different CAS number and reactivity. Confirm the full name, CAS number, water content and stabilizer or inhibitor status before approving a substitute solvent.
Q:
Which release specifications matter for 1,4-Dioxane?

A: Agree GC assay, water, peroxide value, aldehydes, acidity, nonvolatile residue, color and relevant ether or glycol-ether impurities. Peroxide control is important because ethers can form peroxides during storage. The COA should state the test methods, production date and whether the result is for stabilized material.
Q:
What must be checked for bulk 1,4-Dioxane handling?

A: Confirm the approved package, seals, previous-cargo cleanliness, vapor control, grounding, ventilation and receiving-tank capacity. Check the current SDS and destination transport requirements before shipment. Avoid prolonged storage, contamination and heat, and document peroxide testing and container-opening controls at the receiving site.

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