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Butyl Diglycol = Butoxydiglycol = 2-(2-Butoxyethoxy)ethanol = Diethylene glycol monobutyl ether = DEGBE
CAS Number: 112-34-5
EC Number: 203-961-6
ECHA EINECS - REACH Pre-Reg: 203-961-6
FDA UNII: 9TB90IYC0E
Beilstein Number: 1739225
MDL:MFCD00002881
InChI: InChI=1S/C8H18O3/c1-2-3-5-10-7-8-11-6-4-9/h9H,2-8H2,1H3
InChI Key: OAYXUHPQHDHDDZ-UHFFFAOYSA-N
UNII: 9TB90IYC0E
Chemical and Physical Properties
NHPID Name: Butoxydiglycol
Proper Name(s): 2-(2-Butoxyethoxy)ethanol
Common Name(s):
-Butoxydiglycol
-Diethylene glycol monobutyl ether
Linear Formula: CH3(CH2)3OCH2CH2OCH2CH2OH
Molecular Formula: C8H18O3
Molar Mass: 162.229 g/mol
Melting Point: -68°C
Boiling Point: 347.1°C at 760 mmHg
Flash Point: 163.7°C
Solubility: soluble
Vapor Pressure: 3.39E-06mmHg at 25°C
XLogP3: 0.6
Hydrogen Bond Donor Count: 1
Hydrogen Bond Acceptor Count: 3
Rotatable Bond Count: 8
Exact Mass: 162.126 g/mol
Monoisotopic Mass: 162.126 g/mol
Topological Polar Surface Area: 38.7 A^2
Heavy Atom Count: 11
Formal Charge: 0
Complexity: 66.4
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently Bonded Unit Count: 1
Description:
Butyl diglycol is a colourless liquid with a mild pleasant odor.
Butyl diglycol is a solvent cleaning agent that can also be found in household cleaners and degreasers.
Butyl diglycol works by dissolving the residue that remains on bathroom surfaces such as oils and soaps.
Butyl diglycol particularly good at removing soap scum.
Butyl diglycol (also known as BDG, butyl dioxitol, diethylene glycol monobutyl ether, 2(-2butoxyethoxy) ethanol and butoxydiethylene glycol) is a colourless, clear liquid with a faint characteristic odour.
Butyl diglycol is soluble in water and miscible with many common solvents, and also has low volatility and a high boiling point.
These are the factors that make butyl diglycol most useful in the paint industry.
Butyl diglycol is a colourless, clear liquid with a faint characteristic odour, and the formula C8H18O3.
Butyl diglycol is soluble in water and miscible with many common solvents, and also has low volatility and a high boiling point.
These are the factors that make butyl diglycol most useful in the paint industry.
Butyl diglycol functions in skincare and cosmetics as a/an that masks the scent of other ingredients in a formula aka masking, solvent to dissolve things in a formula, viscosity controlling ingredient.
Butyl diglycol is a clear, colourless liquid with a high boiling point, low volatility and a mild, pleasant odour.
The properties of butyl diglycol are similar to butyl glycol, though it evaporates more slowly.
Like other glycol ethers, butyl diglycol has a bi-functional nature, containing both ether and alcohol groups in the same molecule.
Butyl diglycol is fully miscible with water and a wide range of organic solvents.
This excellent miscibility makes Butyl diglycol a versatile solvent, coupling and coalescing agent which offers excellent performance features in a wide range of applications.
The bi-functional nature of Butyl diglycol also means that is displays the typical reactions of an alcohol, ie. esterification, etherification, oxidation and the formation of acetates and alcoholates.
Butyl diglycol is produced by the reaction of two ethylene molecules with normal butanol (n-butanol) in the presence of a catalyst.
Diethylene glycol butyl ether (2-(2-Butoxyethoxy)ethanol) is a clear liquid with a very low odour and high boiling point.
Butyl diglycol serves as a solvent for paints and varnishes, in the chemical industry, household detergents, brewing chemicals and textile processing.
Butyl diglycol is used as raw material in the chemical synthesis.
Butyl diglycol is produced by the reaction of ethylene oxide and n-butanol with an alkalic catalyst.
Butyl diglycol is a clear, low-volatile, high-boiling liquid.
Butyl diglycol or gasoline-solvent obtained by processing oil product with hydrotreating.
Butyl diglycol occurs as a fuel liquid or alternative to kerosene for furnace heating.
Butyl diglycol is a solvent for synthetic and natural resins, oils, fats.
Butyl diglycol is an organic compound and, is one of several glycol ether solvents.
Butyl diglycol is a colorless liquid with a low odour and high boiling point.
Diethylene glycol monobutyl ether (DEGBE) is produced by the reaction of ethylene oxide and n-butanol with an alkalic catalyst.
Butyl diglycol is a clear, low-volatility liquid with a faint, mild characteristic odour.
Butyl diglycol also known as BDG, butyl dioxitol and diethylene glycol monobutyl ether, is a colourless, clear liquid with a faint characteristic odour.
Butyl diglycol has a molecular formula of C8H18O3.
Butyl diglycol has a flash point of 105 °C and a specific gravity of 0.955.
Butyl diglycol is one of the co-products formed when ethylene oxide is reacted with n-butanol using a catalyst.
Butyl diglycol is a solvent which exhibits low volatility, high boiling point and faint odor.
Butyl diglycol is compatible with urea, melamine, phenol resins and epoxy resins.
Butyl diglycol reduces the tendency to blister and improves the tension of paints.
Butyl diglycol is miscible with many common solvents, including aliphatic hydrocarbons, alcohols, ketones, aldehydes, ethers, glycols, glycol ethers, and water.
Butyl diglycol is used as a solvent in coatings and cleaner applications for industrial and consumer markets.
Butyl diglycol is also used as a chemical intermediate to produce diethylene glycol monobutyl ether acetate (DBA) and some herbicides, insecticides and plasticizers.
Butyl diglycol is also used in hydraulic brake fluid applications.
Features of Butyl Diglycol:
-A clear, water white fluid soluble in both water and organic solvents
-A highly refined product with low volatility
-Important component in coatings formulations
-Soluble in many organic solvents and water.
-Butyl diglycol can be used in many and wide ranging applications
-Powerful solvency
-Coalescing ability
-High dilution ratio
-Low evaporation rate
-Low viscosity
-Wide range of applications
Powerful Solvency Properties of Butyl Diglycol:
-100% water soluble
-Good coalescing and coupling properties
-High dilution ratio
-Low viscosity
-Good for removing soap scum and oily soils
How is Butyl Diglycol Produced?
Butyl diglycol is one of the co-products formed when ethylene molecules are reacted with n-butanol using an alkali catalyst.
If the ratio of ethylene to butanol is higher than two at the end of this process, then butyl diglycol is produced (along with tri-ethylene glycol monoethers).
Glycol ethers are characterized by their excellent solvency, chemical stability and compatibility with water and a number of organic solvents.
Glycol ethers, with the combination of ether, alcohol and hydrocarbon chain in one molecule, provide versatile solvency characteristics with both polar and non-polar properties.
The chemical structure of long hydrocarbon chain resist to solubility in water, while ether or alcohol groups introduce the promoted hydrophilic solubility performance.
The dual functionality presents in the glycol ethers accounts for their unique solvency properties. They are:
-Mild-odored solvents for many resins, oils, waxes, fats and dyestuffs
-Coupling agents for many water/organic systems
-Miscible with a wide range of polar and non-polar organic solvents
-Miscible with water in all proportionation
This strong solvency leads to the selection of certain glycol ethers for a broad array of end-uses:
-Dye solvents in the textile, leather and printing industries
-Solvents for grease and grime in industrial cleaning and specialty formulations
-Solvents for insecticides and herbicides for agricultural applications
-Coupling solvents for hard-surface cleaners and other soap-hydrocarbon systems
-Solvents and cosolvents for conventional lacquer, enamel and stains for industrial coating systems
-Cosolvents for waterborne industrial coating system
-Fuel System Icing Inhibitor (FSII)
-Freeze-thaw agents in aqueous systems
-Chemical reaction solvents
Uses and Applications of Butyl Diglycol:
Butyl diglycol is used as solubilizer, cleaning agent solvent.
Butyl diglycol is used as a solvent and diluent for polymers, resins, coatings, inks, cleaners, and metalworking fluids.
Butyl diglycol is used as a solvent (nitrocellulose, oils, dyes, gums, soaps, and polymers) and coalescing agent in latex paints.
Butyl diglycol is in paints containing 1.5% w/w, painters exposed to 4-5 mg/m3.
Butyl diglycol is used as a raw material for organic synthesis.
Butyl diglycol is mainly used as a solvent for paints and varnishes in the chemical industry, household detergents, brewing chemicals and textile processing.
Butyl diglycol can be used in water based architectural and industrial coatings as a latex coalescent, as a co-solvent in industrial cleaners, household surface cleaners and disinfectants.
As well as, resins and dyes in water based printing inks.
Butyl diglycol is commonly used in the ink, paint and coatings industries as a flow promoter in baking finishes (urea, melamine or epoxy resin composites) and reduces any possible weakness to blistering.
Butyl diglycol is also used as a latex coalescent in a variety of different adhesives, water-based coatings, inks and dyes.
Butyl diglycol is an ingredient listed in many industrial and household surface cleaners, de-greasing products, disinfectants and rust removers.
Butyl diglycol is most commonly used in the coatings and paint industries where its low volatility and high boiling point have seen it widely accepted as a flow promoter for baking finishes.
Butyl diglycol is also widely used in stove enamels as it has a high evaporation number which means that the enamel properties can be improved without it affecting the drying time.
Butyl diglycol also has a role in air-drying paints as it increases “brushability”.
Butyl diglycol is also found in the printing industry where it is a solvent for printing inks, and is also a starting material in the production of butyl diglycol acetate.
Butyl diglycol is known to be used in coating products, heat transfer fluids, hydraulic fluids, lubricants and greases, plant protection products and water treatment chemicals.
Butyl diglycol is also used in washing & cleaning products, cosmetics and personal care products, perfumes and fragrances and also fertilisers.
Butyl diglycol is used widely in manufacture of fabricated metal parts for machineries and vehicles.
Butyl diglycol's most common use is in the metal working fluids.
Butyl diglycol can be use in leather treatment and also in several production processes for textile and fur.
Butyl diglycol is commonly used as a flow promoter in baking finishes such as those derived from urea, melamine and phenol, in lacquers for coil coating and in cellulose nitrate baking finishes.
Butyl diglycol also reduces the tendency of such products to blistering.
Butyl diglycol is used as a latex coalescent in a range of adhesives and water-based coatings, and as a solvent in silk screen printing inks, ballpoint and felt-tip pen inks and textile inks and dyes.
Butyl diglycol acts as a solvent in many natural and synthetic resins, fats and oils.
Butyl diglycol is regularly used in both industrial and household surface cleaners as a de-greasing agent, in rust removers and disinfectants.
Butyl diglycol is an important starting material for a variety of syntheses.
Being one of the raw materials for the production of butyl diglycol acetate and for the production of plasticizers by reaction with phthalic anhydride.
Butyl diglycol is also formulated into some insecticides and herbicides, and is a component in hydraulic brake fluid, cutting oils, printing inks and foam extinguishants.
In pesticide products, butyl diglycol acts as an inert ingredient as a deactivator for formulation before the crop emerges from the soil and as a stabilizer.
Butyl diglycol is also a chemical intermediate for the synthesis of diethylene glycol monobutyl ether acetate, diethylene glycol dibutyl ether, and piperonyl acetate, and as a solvent in high baked enamels.
Other applications of Butyl diglycol are as a dispersant for vinyl chloride resins in organosols, a diluent for hydraulic brake fluids, and a mutual solvent for soap, oil, and water in household cleaners.
The textile industry uses butyl diglycol as a wetting-out solution.
Butyl diglycol is also a solvent for nitrocellulose, oils, dyes, gums, soaps, and polymers.
Butyl diglycol is also used as coupling solvent in liquid cleaners, cutting fluids, and textile auxiliaries.
In the printing industry, butyl diglycol applications include: solvent in lacquers, paints, and printing inks; high boiling point solvent to improve gloss and flow properties.
Diethylene glycol monobutyl ether is used primarily in the manufacturing of lacquers based on nitrocellulose, cellulose ethers and chlorinated rubber. Small quantity is also used in combination lacquers.
Small quantity of butyl diglycol improves both the flow and dilution capacity of the lacquers and also enhances the gloss of the resultant lacquer films.
Since butyl diglycol dissolves only dried lacquer coatings very slowly, it is ideal for the preparation of brushing lacquers based on cellulose esters, cellulose ethers and chlorinated rubber.
Even small addition of butyl diglycol to alkyd and the viscosity of the lacquer solution considerably reduce, thereby improving the brush-out properties of such lacquers.
Butyl diglycol is an excellent tool for cleaning parts and equipment in the home and in the workplace.
Butyl diglycol is a biodegradable diluent for paint coatings, forming a coating in the form of a film.
Butyl diglycol is widely used in the production of latex adhesives.
Butyl diglycol is an ideal solution for temperature reduction during film formation in water-dilute rubber coatings.
Butyl diglycol acts as a binder for synthetic resins and dyes in printing inks.
In the field of cosmetology and personal care products, butyl diglycol can be used when developing new formulas for creating perfumed products.
Butyl diglycol is used as a solubilizer in mineral oil products.
Consumer Uses of Butyl Diglycol:
Butyl diglycol is used in the following products: coating products, washing & cleaning products, fertilisers, cosmetics and personal care products, heat transfer fluids, hydraulic fluids, lubricants and greases. Butyl diglycol is also used in the following products: plant protection products, water treatment chemicals and perfumes and fragrances.
Other release to the environment of Butyl diglycol is likely to occur from: outdoor use, indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives).
Indoor use in close systems with minimal release (e.g. cooling liquids in refrigerators, oil-based electric heaters).
Outdoor use in close systems with minimal release (e.g. hydraulic liquids in automotive suspension, lubricants in motor oil and break fluids).
Article Service Life of Butyl Diglycol:
Other release to the environment of butyl diglycol is likely to occur from: indoor use in long-life materials with low release rate.
Examples of indoor use in long-life materials are flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment.
Other release to the environment of butyl diglycol is likely to occur from: outdoor use in long-life materials with low release rate.
Examples of outdoor use in long-life materials with low release rate are metal, wooden and plastic construction and building materials.
Other release to the environment of butyl diglycol is likely to occur from: outdoor use in long-life materials with high release rate.
Examples of outdoor use in long-life materials with high release rate are tyres, treated wooden products, treated textile and fabric, brake pads in trucks or cars, sanding of buildings or vehicles.
Other release to the environment of butyl diglycol is likely to occur from: indoor use in long-life materials with high release rate.
Examples of indoor use in long-life materials with high release rate are release from fabrics, textiles during washing, removal of indoor paints.
Butyl diglycol can be found in complex articles, with no release intended: vehicles and machinery, mechanical appliances and electrical/electronic products.
Butyl diglycol can be found in products with material based on: leather, fabrics, textiles and apparel, paper, wood, paper used for packaging, stone, plaster, cement, glass or ceramic, metal and plastic.
Widespread Uses of Butyl Diglycol by Professional Workers:
Butyl diglycol is used in the following products: metal working fluids, oil and gas exploration or production products, coating products, laboratory chemicals, heat transfer fluids.
Butyl diglycol is also used in the hydraulic fluids, washing & cleaning products, fertilisers, non-metal-surface treatment products, finger paints, metal surface treatment products and plant protection products.
Butyl diglycol is used for the manufacture of: fabricated metal products and machinery and vehicles.
Other release to the environment of this substance is likely to occur from: outdoor use and indoor use.
Examples of indoor and outdoor use are machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners.
Examples of indoor use in close systems with minimal release are cooling liquids in refrigerators, oil-based electric heaters.
Examples of outdoor use in close systems with minimal release are hydraulic liquids in automotive suspension, lubricants in motor oil and break fluids.
Formulation or Re-packing of Butyl Diglycol:
Butyl diglycol is used in the following products: coating products, non-metal-surface treatment products, laboratory chemicals, anti-freeze products, fertilisers, metal surface treatment products.
Butyl diglycol is also used in leather treatment products, semiconductors, textile treatment products and dyes, cosmetics and personal care products and photo-chemicals.
Release to the environment of butyl diglycol can occur from industrial use: formulation of mixtures, manufacturing of the substance, formulation in materials and in processing aids at industrial sites.
Uses of Butyl Diglycol at Industrial Sites:
Butyl diglycol is used in the following products: oil and gas exploration or production products, leather treatment products, polymers, coating products, non-metal-surface treatment products, hydraulic fluids.
Butyl diglycol is also used in metal surface treatment products, laboratory chemicals, washing & cleaning products, heat transfer fluids, lubricants and greases, metal working fluids and water treatment chemicals.
Butyl diglycol is used in the following areas: mining.
Butyl diglycol is used for the manufacture of: textile, leather or fur and chemicals.
Release to the environment of butyl diglycol can occur from industrial use: in processing aids at industrial sites and of substances in closed systems with minimal release.
Recommended Uses for Butyl Diglycol:
-Degreasing of metal surfaces
-Starting material of butyl diglycol acetate
-Degreasing of metals and cutting oils
Manufacturing of Butyl Diglycol:
Release to the environment of butyl diglycol can occur from industrial use: manufacturing of the substance and formulation of mixtures.
Applications of Butyl Diglycol:
Butyl diglycol is mainly used in the coatings industry.
Nitrocellulose solutions in butyl glycol can be diluted with large amounts of white crystals, aromatic hydrocarbons or ethanol without affecting the film properties.
A small amount of butyl diglycol will improve the viscosity and dilution of the lacquer, and also increase the gloss of the matte coatings.
Besides, butyl diglycol is also a good solvent for use in mineral oil industry, a small amount of BC can disperse and stabilize emulsions for a long time.
A special feature is that butyl diglycol does not react with rubber.
Butyl diglycol is a solvent for industrial cleaning agents and rust removers.
Butyl diglycol is used as an ingredient in metal degreasing agents.
Butyl diglycol is an initial stabilizer and inactivator for pesticides in industry.
Butyl diglycol is coupling agent and solvent in household and industrial cleaners, rust removers, hard surface cleaners and disinfectants.
Butyl diglycol is primary solvent in solvent-based silk screen printing inks.
Butyl diglycol is coupling solvent for resins and dyes in water-based printing inks.
Butyl diglycol is solvent for ball point and felt tip pen inks, and textile dyeing and printing.
Butyl diglycol is coalescent for latex adhesives.
Butyl diglycol is deactivator and stabilizer for agricultural pesticides.
Butyl diglycol is diluent in hydraulic brake fluid applications.
Benefits of Butyl Diglycol:
-Excellent solvency
-Great chemical stability
-Compatible with water and a number of organic solvents
Storage and Handling of Butyl Diglycol:
Protect butyl diglycol against physical damage.
Outside or detached storage is preferred for butyl diglycol.
Inside storage should be in a standard flammable liquids storage room or cabinet.
Separate from oxidizing materials.
Storage and use areas should be no smoking areas.
Containers of this material may be hazardous when empty since they retain product residues (vapors, liquid); observe all warnings and precautions listed for the product.
Butyl diglycol is incompatible with strong acids, bases and oxidizers.
Precautions for safe handling :
-Ensure good ventilation of the work station
-Avoid contact with skin and eyes
-Wear personal protective equipment
Hygiene measures :
-Do not eat, drink or smoke when using this product
-Always wash hands after handling the product
Storage conditions :
-Store in a well-ventilated place
-Keep cool
-Keep container tightly closed
-Store away from heat and light
Handling of Butyl Diglycol:
-Wear eye protection
-Avoid ingestion
-Keep off skin
Reactivity of Butyl Diglycol:
Butyl diglycol is non-reactive under normal conditions of use, storage and transport.
Chemical stability of Butyl Diglycol:
Butyl diglycol is stable under normal conditions.
Preferred IUPAC name:
2-(2-Butoxyethoxy)ethan-1-ol
Other names:
2-(2-Butoxyethoxy)ethanol
DEG monobutyl ether
Butyldiglycol
Butyl carbitol
Butyl digol
Synonyms:
112-34-5
Butyldiglycol
Diethylene Glycol Monobutyl Ether
Butyl Carbitol
Diethylene Glycol Butyl Ether
Butyl Diglycol
Butyl Digol
Ethanol, 2-(2-butoxyethoxy)-
Butoxyethoxyethanol
Butoxydiglycol
Butyl Dioxitol
Bucb
Dowanol Db
Glycol Ether Db
Poly-solv Db
Jeffersol Db
Ektasolve Db
Butoxydiethylene Glycol
Diglycol Monobutyl Ether
BDG
Butoxydiethylene glycol
Butoxydiglycol
2-(2-Butoxyethoxy)ethanol
Butyl diglycol
DEGBE
Diethylene glycol butyl ether
Diethylene glycol n-butyl ether
Diglycol monobutyl ether
Diethylene glycol mono-n-butyl ether
Monobutyl diethylene glycol ether
O-butyl Diethylene Glycol
Butoxy Diethylene Glycol
Diethylene Glycol Mono-n-butyl Ether
Diethylene Glycol N-butyl Ether
Diethylene Gylcol Monobutyl Ether
Caswell No. 121b
Caswell No. 125h
N-butyl Carbitol
Unii-9tb90iyc0e
3,6-dioxadecanol
Nsc 407762
Ccris 5321
Hsdb 333
Ethanol, 2,2'-oxybis-, Monobutyl Ether
3,6-dioxa-1-decanol
Einecs 203-961-6
Epa Pesticide Chemical Code 011502
Brn 1739225
9tb90iyc0e
2-(2-n-butoxyethoxy)ethanol
Ai3-01954
Monobutyl Diethylene Glycol Ether
Oayxuhpqhdhddz-uhfffaoysa-n
Mfcd00002881
Dsstox_cid_1519
Dsstox_rid_76196
Dsstox_gsid_21519
2-(2-butoxyethoxy)ethan-1-ol
2-(2-butoxyethoxy)ethanol, 99+%
Diethylene Glycol Butyl Ether, >=99%
Cas-112-34-5
Butadigol
Budyl Digol
Butyl Di-icinol
Diethylene Db
Db Solvent
Degbe
Ethanol 2-butoxyethoxy
Pubchem12838
3,6-dioxadecan-1-ol
Butyl Carbitol™
Ac1l1qfs
Ac1q2xkp
Butyl Oxitol Glycol Ether
2-(2-butoxyetoxy)etanol
2-(n-butoxyethoxy)ethanol
Acmc-2099ee
Ec 203-961-6
2-(2-butoxyethoxy)-ethano
2-(2-butoxyethoxy)-ethanol
Schembl15619
2-(2-butoxyethoxy);ethanol
Diethylene Glycol Butyl Ester
Diethyleneglycol Monobutylether
Diethyleneglycol N-butyl Ether
Wln: Q2o2o4
Diethylene Glycol Monobutylether
Diethyleneglycol Monobutyl Ether
Jsp000950
Chembl1904721
Diethylene Glycol-monobutyl Ether
Dtxsid8021519
Ctk6e3632
2-bu-toxyethyl-2-hydroxyethylether
Ks-00000v6y
Zinc1600070
Tox21_202404
Tox21_300084
Anw-16452
Ethanol,2'-oxybis-, Monobutyl Ether
Ls-551
Nsc407762
Sbb059921
Akos009156535
Mcule-9776383171
Nsc-407762
Rl00493
Rtr-033138
Tra0069660
Diethylene Glycol Monobutyl Ether, 98%
Ncgc00164235-01
Ncgc00164235-02
Ncgc00164235-03
Ncgc00253937-01
Ncgc00259953-01
Aj-27963
An-43124
Cj-25734
Di-ethylene Glycol Monobutyl Ether
Ax8124872
Tr-033138
B0699
Ft-0624889
St24039173
St50824825
Diethylene Glycol Monobutyl Ether Reagent Grade
74525-ep2269986a1
74525-ep2272849a1
74525-ep2284165a1
74525-ep2308857a1
74525-ep2371809a1
74525-ep2372017a1
97860-ep2305685a1
97860-ep2305686a1
103519-ep2301924a1
Diethylene Glycol Monobutyl Ether, >=98.0% (gc)
J-002756
J-519970
I14-14158
2,2 Inverted Exclamation Mark -oxybis-ethanomonobutylether
Diethylene Glycol Butyl Ether, Saj Special Grade, >=99.0%
Diethylene Glycol Monobutyl Ether, For Surfactant Analysis, >=99.0%.Butoxydiglycol
