Butyl cellosolve
2-Butoxy ethanol
CAS: 111-76-2
Molecular Formula: C6H14O2
Butyl cellosolve - Names and Identifiers
Butyl cellosolve - Physico-chemical Properties
| Molecular Formula | C6H14O2 |
| Molar Mass | 118.17 |
| Density | 0.902g/mLat 25°C(lit.) |
| Melting Point | -70 °C |
| Boling Point | 171 °C |
| Flash Point | 140°F |
| Water Solubility | miscible |
| Solubility | 900g/l completely miscible |
| Vapor Presure | <1 mm Hg ( 20 °C) |
| Vapor Density | 4.1 (vs air) |
| Appearance | Liquid |
| Color | Clear |
| Odor | Mild, characteristic; slightly rancid; mild ethereal. |
| Exposure Limit | TLV-TWA skin 25 ppm (121 mg/m3) (ACGIH), 50 ppm (242 mg/m3) (OSHA); STEL 75 ppm (363 mg/m3) (ACGIH);IDLH 700 ppm (NIOSH).. |
| Maximum wavelength(λmax) | ['λ: 230 nm Amax: 1.0', , 'λ: 250 nm Amax: 0.10', , 'λ: 275 nm Amax: 0.05', , 'λ: 300 |
| Merck | 14,1559 |
| BRN | 1732511 |
| pKa | 14.42±0.10(Predicted) |
| PH | 7 (H2O, 20℃)(as aqueous solution) |
| Storage Condition | Store below +30°C. |
| Explosive Limit | 1.1-10.6%(V) |
| Refractive Index | n20/D 1.419(lit.) |
| Physical and Chemical Properties | Colorless flammable liquid with moderate ether flavor. |
| Use | It should be used as solvent metal detergent, paint remover, lubricating oil remover, automobile engine detergent, dry cleaning solvent, epoxy resin solvent, drug extractant for coating, printing ink, printing ink for stamp, oil, resin, etc; it is used as stabilizer of latex paint, evaporation inhibitor of aircraft paint, surface processing of high temperature baking enamel, etc. |
Butyl cellosolve - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/38 - Irritating to eyes and skin. |
| Safety Description | S36/37 - Wear suitable protective clothing and gloves. S46 - If swallowed, seek medical advice immediately and show this container or label. |
| UN IDs | 1986 |
| WGK Germany | 1 |
| RTECS | KJ8575000 |
| TSCA | Yes |
| HS Code | 2909 43 00 |
| Hazard Class | 6.1 |
| Packing Group | III |
| Toxicity | LD50 orally in rats: 1.48 g/kg (Smyth) |
Butyl cellosolve - Upstream Downstream Industry
| Raw Materials | Phenol 1-Butanol Ethylene Oxide Methyl alcohol Copper(II) sulfate Potassium hydroxide Sodium hydroxide Chlorobenzene Ethyl Alcohol 1-Butanol |
Butyl cellosolve - Nature
Open Data Verified Data
colorless flammable liquid, with moderate ether flavor, low toxicity, boiling point 171 °c. The relative density was 0. 9015. Refractive index 4198. Vapor pressure (20 °c) O. 10 L kPa. Flash point 61.1 °c. Spontaneous ignition point 472. Soluble in 20 times water, soluble in most organic solvents and mineral oil. Has a high dilution ratio with petroleum hydrocarbons.
Last Update：2024-01-02 23:10:35
Butyl cellosolve - Preparation Method
Open Data Verified Data
first, butanol was added to the boron trifluoride-ether complex, and ethylene oxide was introduced at 25-30 ° C., and then the temperature was automatically raised to about 80 ° C. To complete the addition reaction. The reaction product is neutralized and distilled to obtain a crude product after recovering butanol, and then fractionated to obtain a finished product.
Last Update：2022-01-01 10:16:01
Butyl cellosolve - Use
Open Data Verified Data
It is mainly used as a solvent for nitrocellulose, spray paint, quick-drying paint, varnish, enamel and paint stripper. It can also be used as fiber wetting agent, pesticide dispersant, resin plasticizer, organic synthesis intermediate. Reagents for the determination of iron and molybdenum. An auxiliary solvent for improving the emulsifying properties and dissolving the mineral oil in the soap solution.
Last Update：2022-01-01 10:16:02
Butyl cellosolve - Safety
Open Data Verified Data
has moderate toxicity. Rat oral ld501480 mg/kg, mouse LC700 x 10 -6. The maximum allowable concentration in the air of the workplace is 240mg/m3. The operating equipment should be closed and well ventilated, and the operator should wear protective equipment.
Barrel or bottled. For the third level flammable liquid, stored in a cool, ventilated place. According to the provisions of flammable and toxic chemicals storage and transportation.
Last Update：2022-01-01 10:16:02
Butyl cellosolve - Reference Information
| olfactory Threshold | 0.043ppm |
| Henry's Law Constant | (x 10-6 atm?m3/mol):2.36 (approximate - calculated from water solubility and vapor pressure) |
| LogP | 0.81 at 20℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| (IARC) carcinogen classification | 3 (Vol. 88) 2006 |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | ethylene glycol butyl ether is one of the important derivatives of ethylene oxide (EO), is a green solvent, colorless liquid, molecular weight 118.17, distillation range 163~174 ℃, not volatile, relative density 0.9019, boiling point 171.1 ℃, flash point 60.5 ℃, toxic, miscible with water, linseed oil hydrocarbon solvent, has a strong ability to dissolve and synthetic rubber, suitable for natural rubber and synthetic rubber solvents, also used as rosin, shellac, Shell resin and oxygen indene resin, solvents for ethyl fiber and nitrocellulose. |
| physical properties | ethylene glycol monobutyl ether is a colorless flammable liquid with a moderate ether odor. |
| Application | ethylene glycol Butyl Ether has both an ether bond and a hydroxyl group in its molecule, this unique property makes it not only soluble organic molecules, synthetic or natural polymer compounds, but also miscible with water or water-soluble compounds to varying degrees, so it is widely used as coatings, use of ink, cleaning agent, drug extractant, etc. |
| Application | ethylene glycol butyl ether is one of the important industrial derivatives of epoxy compounds, and is an extremely important fine chemical. Because of its chemical structure has two strong dissolving function groups-ether bond and hydroxyl, the former has lipophilic, can dissolve hydrophobic compounds, the latter has hydrophilic, can dissolve hydrophilic compounds, therefore, it has a strong ability to dissolve and is known as a "universal solvent. used as paint, ink solvent, metal cleaning agent components and raw materials of dye dispersant mainly used as nitrocellulose, spray paint, quick-drying paint, varnish, enamel and paint remover solvent. It can also be used as fiber wetting agent, pesticide dispersant, resin plasticizer, organic synthesis intermediate. Reagents for the determination of iron and molybdenum. An auxiliary solvent for improving the emulsifying properties and dissolving the mineral oil in the soap solution. used as a reagent and solvent for the determination of iron and molybdenum, also used for the separation of calcium and strontium in nitrate to be used as a coating, printing ink, stamp printing ink, oil, resin solvent metal detergent, paint stripper, lubricating oil, automotive engine detergent, dry cleaning solvent, epoxy resin solvent, drug extractant; Used as a stabilizer for latex paint, aircraft paint evaporation inhibitor, surface processing of high temperature baking enamel. |
| production method | raw materials: Ethylene Oxide, n-butanol, phenol, butanol, methanol, copper sulfate, potassium hydroxide, caustic soda, benzene monochloride, ethanol production method: by the addition of ethylene oxide and n-butanol derived. First, the butanol is added to the boron trifluoride-diethyl ether complex, and then ethylene oxide is introduced at 25-30 ° C., and then the temperature is automatically raised to about 80 ° C. To complete the addition reaction. The reaction product is neutralized and distilled to obtain a crude product after recovering butanol, and then fractionated to obtain a finished product. obtained by addition of ethylene oxide to n-butanol. N-butanol was added to a solution of boron trifluoride in diethyl ether at 20 ° C., and ethylene oxide was introduced with stirring. As the reaction proceeded, the temperature rose automatically, and after the temperature dropped, it was left for three days. The crude product was obtained by neutralization with potassium hydroxide methanol solution to pH = 8. After adding a little p-aminophenol to the crude product, Fractionation was carried out, and the fractions at 166-170 ℃ were collected to obtain the finished product. Industrial production can be used in high temperature and high pressure (reaction temperature 180-250 ℃, pressure 2.1-4.6MPa) under the method of non catalytic reaction, reaction 6H. It is also possible to use a base catalyst at approximately atmospheric pressure and lower temperatures. |
| category | flammable liquid |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 470 mg/kg; Oral-mouse LD50: 1230 mg/kg |
| stimulation data | Skin-rabbit 500 mg mild; Eye-rabbit 100 mg severe |
| explosive hazard characteristics | explosive when mixed with air |
| flammability hazard characteristics | flammable in open flame, high temperature, strong oxidant; combustion gives off stimulus smoke |
| storage and transportation characteristics | The package is complete, light and light unloading; The warehouse is ventilated, away from open flame, high temperature, separate from oxidant |
| fire extinguishing agent | foam, carbon dioxide, dry powder, sand |
| Occupational Standard | TLV-TWA 25 PPM (120 mg/m3); sel 200 mg/m3 |
| spontaneous combustion temperature | 473 ° F. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
| immediate life-and health-threatening concentration | 700 ppm |
Last Update：2024-04-17 12:26:55
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Raw Materials for Butyl cellosolve