Are Butyl Diglyme and Diethylene Glycol Dibutyl Ether the same solvent?

Yes. Butyl Diglyme, diethylene glycol dibutyl ether and bis(2-butoxyethyl) ether identify CAS 112-73-2. It differs from Butyl Diglycol (diethylene glycol monobutyl ether, CAS 112-34-5) and Diglyme (diethylene glycol dimethyl ether, CAS 111-96-6). Specify the full product name and CAS number when ordering.

Which specifications should be agreed for Butyl Diglyme?

Agree GC assay, appearance and APHA colour, water by Karl Fischer, acidity, peroxide content, suspended matter, refractive index and density with the methods. Ether solvents can accumulate peroxides, so the limit and test date matter for storage and process use.

What are the key physical properties of Butyl Diglyme?

Butyl Diglyme (CAS 112-73-2) is a colourless liquid. Reference values include a boiling point around 254–256 °C, a melting point near -60 °C and a density around 0.88 g/cm³ at 20 °C. Merck reports a flash point of 118 °C by a closed-cup method; other suppliers report different values. Check the offered grade’s TDS/SDS and test method. These properties alone do not establish battery-grade suitability.

Butyl Diglyme CAS 112-73-2

Butyl Diglyme (CAS 112-73-2), also called diethylene glycol dibutyl ether or bis(2-butoxyethyl) ether, is a high-boiling solvent for industrial extraction and reaction processes. Send your application, required specification, quantity and destination for a bulk quotation, and request COA/TDS/SDS for the offered grade.

CAS: 112-73-2
Synonyms: Butyl Diglyme; Diethylene Glycol Dibutyl Ether; Dibutyl Diglyme; DEG Dibutyl Ether
Einecs: 204-001-9
Molecular Formula: C₁₂H₂₆O₃
Grade: Industrial solvent; confirm assay and application-specific limits with the quotation.
Package: Confirm packaging compatible with the offered form and destination requirements.

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Product Description

1 Physicochemical Properties

2 Applications

3 Quality Assurance (QA/QC)

4 Storage & Safety

Physicochemical Properties

Indicative purchasing targets, not a confirmed batch specification. Agree assay, water limits and test methods with the quotation; physical properties are reference values.

Parameter	Specification	Test Method
Appearance	Colorless, transparent liquid	Visual Inspection
Purity (GC)	≥ 99.0%	Gas Chromatography
Density (20°C)	0.880 – 0.890 g/cm³	ASTM D1298
Boiling Point	254°C – 256°C	Distillation
Flash Point	118°C (Closed Cup)	Confirm closed-cup test method
Water Content	≤ 0.10%	Karl Fischer

Applications

Butyl Diglyme is used as a high-boiling reaction and extraction solvent, including gold recovery from chloride media and selected industrial ink formulations. It has also been studied in battery electrolytes; suitability depends on the complete formulation and impurity requirements. State your process, required GC assay, water, peroxide and metal limits when requesting a bulk quotation.

Quality Assurance (QA/QC)

Request COA/TDS/SDS for the offered grade. Agree assay, water, acidity, peroxide and colour limits, test methods and sampling requirements before ordering. Review the batch COA against the agreed specification, including the peroxide test date where required.

For related glycol-ether solvent raw materials, see Diethylene Glycol Monobutyl Ether and Diethylene Glycol Monoethyl Ether.

Storage & Safety

Store in tightly closed, compatible containers away from heat, light and oxidizers, and follow a peroxide-monitoring program. Confirm manufacturing date, stabilizer status if applicable and the supplier’s shelf-life basis before accepting the material.

Use ventilation and eye protection appropriate to the task. Select chemical-resistant gloves from the SDS and glove manufacturer’s permeation data. Confined-space work requires a site-specific risk assessment and suitable respiratory protection; an organic-vapour filter alone is not adequate in an oxygen-deficient atmosphere.

FAQ - Technical & Supply Chain

Q:
Are Butyl Diglyme and Diethylene Glycol Dibutyl Ether the same solvent?

A: Yes. Butyl Diglyme, diethylene glycol dibutyl ether and bis(2-butoxyethyl) ether identify CAS 112-73-2. It differs from Butyl Diglycol (diethylene glycol monobutyl ether, CAS 112-34-5) and Diglyme (diethylene glycol dimethyl ether, CAS 111-96-6). Specify the full product name and CAS number when ordering.
Q:
What is Butyl Diglyme used for?

A: Butyl Diglyme is used as a high-boiling reaction and extraction solvent, including gold recovery from chloride media and selected industrial ink formulations. It has also been studied in battery electrolytes; suitability depends on the complete formulation and impurity requirements. State your process, required GC assay, water, peroxide and metal limits when requesting a bulk quotation.
Q:
Which specifications should be agreed for Butyl Diglyme?

A: Agree GC assay, appearance and APHA colour, water by Karl Fischer, acidity, peroxide content, suspended matter, refractive index and density with the methods. Ether solvents can accumulate peroxides, so the limit and test date matter for storage and process use.
Q:
What storage and peroxide controls are required?

A: Store in tightly closed, compatible containers away from heat, light and oxidizers, and follow a peroxide-monitoring program. Confirm manufacturing date, stabilizer status if applicable and the supplier's shelf-life basis before accepting the material.
Q:
What are the key physical properties of Butyl Diglyme?

A: Butyl Diglyme (CAS 112-73-2) is a colourless liquid. Reference values include a boiling point around 254–256 °C, a melting point near -60 °C and a density around 0.88 g/cm³ at 20 °C. Merck reports a flash point of 118 °C by a closed-cup method; other suppliers report different values. Check the offered grade’s TDS/SDS and test method. These properties alone do not establish battery-grade suitability.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

Tell us which documents your procurement team needs. Before an order, we will check whether the quoted source can provide them for the offered lot.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Ask whether samples, trial quantities or repeat orders are possible. We will check each request against the sourced product and current offer.

Storage & Shipping

Product-specific conditions are confirmed before order.

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