Di-n-butyl ether
Butyl ether
CAS: 142-96-1
Molecular Formula: C8H18O
Di-n-butyl ether - Names and Identifiers
| Name | Butyl ether |
| Synonyms | (n-C4H9)2O Butyl ether Butyl Oxide Dibutyl Oxide dibutyl ether DIBUTYL OXIDE n-Butyl Ether DIBUTYL ETHER 1-Butoxybutane 1-BUTOXYBUTANE etherbutylique n-dibutyl ether Di-n-Butyl Ether 1,1'-oxybis-butan 1,1'-Oxybis[butane] 1,1'-OXYBIS(BUTANE) etherbutylique(french) butyl ether, all isomers |
| CAS | 142-96-1 |
| EINECS | 205-575-3 |
| InChI | InChI=1/C8H18O/c1-3-5-7-9-8-6-4-2/h3-8H2,1-2H3 |
| InChIKey | DURPTKYDGMDSBL-UHFFFAOYSA-N |
Di-n-butyl ether - Physico-chemical Properties
| Molecular Formula | C8H18O |
| Molar Mass | 130.23 |
| Density | 0.764 g/mL at 25 °C (lit.) |
| Melting Point | -98 °C (lit.) |
| Boling Point | 142-143 °C (lit.) |
| Flash Point | 77°F |
| Water Solubility | 0.03 g/100 mL (20 ºC) |
| Solubility | H2O: soluble0.113g/L at 20°C |
| Vapor Presure | 4.8 mm Hg ( 20 °C) |
| Vapor Density | 4.48 (vs air) |
| Appearance | Liquid |
| Color | Clear colorless |
| Odor | Mild, ether-like. |
| Merck | 14,1569 |
| BRN | 1732752 |
| PH | 5.2 (0.2g/l, H2O, 20℃) |
| Storage Condition | Store at |
| Stability | Stable. Flammable. May form peroxides in storage. Incompatible with strong oxidizing agents. |
| Explosive Limit | 0.9-8.5%(V) |
| Refractive Index | n20/D 1.399(lit.) |
| Physical and Chemical Properties | Transparent liquid. With a similar smell of fruit, slightly irritating. melting point -98 ℃ boiling point 142 ℃ relative density 0.7704 flash point 30.6 ℃ solubility practically insoluble in water. |
| Use | Used as solvent, electronic grade cleaning agent, Organic synthesis |
Di-n-butyl ether - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R10 - Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S24/25 - Avoid contact with skin and eyes. |
| UN IDs | UN 1149 3/PG 3 |
| WGK Germany | 2 |
| RTECS | EK5425000 |
| TSCA | Yes |
| HS Code | 29091990 |
| Hazard Note | Irritant |
| Hazard Class | 3 |
| Packing Group | III |
| Toxicity | LD50 orally in rats: 7.4 g/kg (Smyth) |
Di-n-butyl ether - Upstream Downstream Industry
Di-n-butyl ether - Nature
Open Data Verified Data
A transparent liquid that is practically insoluble in water. Melting Point -98 °c. Boiling point 142 °c. Relative density 0.7481,(dio)o.7704. Flash point (Open Cup) 30.6 °c. The heat of evaporation was 288KL/kg. Viscosity 0.741rnPa.s(15 degrees C), surface tension 23.4mN/m (15 degrees C). With a similar smell of fruit, slightly irritating. A highly irritating compound can be produced by burning.
Last Update：2024-01-02 23:10:35
Di-n-butyl ether - Preparation Method
Open Data Verified Data
- prepared by dehydration of n-butanol with sulfuric acid.
- n-Butanol is prepared by catalytic dehydration on ferric chloride, copper sulfate or aluminum oxide.
Last Update：2022-01-01 10:15:52
Di-n-butyl ether - Use
Open Data Verified Data
A mixed solution of butyl phosphate can be used as a solvent for separating rare earth elements, and a mixed solution of butyl phosphate can be used as a solvent for extraction and purification of resins, fats and oils, organic acids, esters, waxes, alkaloids, hormones, and the like. It can also be used as a reaction solvent for organic synthesis of Grignard reagents, rubbers, pesticides, etc.
Last Update：2022-01-01 10:15:53
Di-n-butyl ether - Safety
Open Data Verified Data
- has a strong stimulating effect on the skin and can be absorbed through the skin. Rabbit percutaneous LD50 10 ml/kg.
- n-butyl ether can generate explosive peroxygen compounds. In order to prevent fire and poisoning, it should be noted that the production and storage warehouse should be well ventilated, and the equipment and packaging should be sealed to prevent leakage. Keep away from fire and heat source. Handling light, light unloading, avoid impact, to prevent packaging damage.
Last Update：2022-01-01 10:15:54
Di-n-butyl ether - Reference Information
| pH range of acid-base indicator discoloration | 5.2 |
| relative polarity | 1.7 |
| LogP | 3.35 |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | used as solvent, electronic grade cleaning agent and organic synthesis used as solvent, electronic grade cleaning agent, organic synthesis among ethers, n-butyl ether has strong dissolving power for many natural and synthetic oils, resins, rubbers, organic acid esters, alkaloids, etc. The solubility of butyl ether in water (20 ° C.) was 0.03% by weight, and the solubility of water in butyl ether (20 ° C.) was 0.19% by weight, and the separation from water was good. In the storage of the formation of less peroxide, toxicity and risk of small, is a highly safe solvent. A mixed solution of a resin, a fat, an organic acid, an ester, a wax, an alkaloid, a hormone, and the like; And butyl phosphate can be used as a solvent for separating rare earth elements. Since butyl ether is an inert solvent, it can also be used as a reaction solvent for organic synthesis of Grignard reagents, rubbers, pesticides, and the like. used as reagents, solvents and extractants for the determination of bismuth solvents for fats and oils and hydrocarbons. Organic Synthesis. Extractant. |
| production method | 1. From the dehydration of n-butanol with sulfuric acid, butanol and sulfuric acid were added to the reaction pot, heated and stirred, and the temperature was raised to about 110 ° C. To start reflux, and water was separated. As the reaction proceeds, water is continuously separated, and the temperature is gradually increased, and the reaction is basically completed when it reaches 135 °c. Washing with water, washing with sulfuric acid, washing with water again, drying with anhydrous calcium chloride, distillation, and collecting the distillate at 139-142 ° C. To obtain butyl ether. N-Butanol is prepared by catalytic dehydration on ferric chloride, copper sulfate or aluminum oxide. Purposes: In ethers, n-butyl ether dissolution of many natural and synthetic oils, resins, rubber, organic acid esters, alkaloids have a strong dissolution. The solubility of butyl ether in water (20 ° C.) was 0.03% by weight, and the solubility of water in butyl ether (20 ° C.) was 0.19% by weight, and the separation from water was good. In the storage of the formation of less peroxide, toxicity and risk of small, is a highly safe solvent. Used as resin, oil, organic acids, esters, waxes, alkaloids, hormones and other extraction and refining solvent; The mixed solution with butyl phosphate can be used as a solvent for separating rare earth elements. Since butyl ether is an inert solvent, it can also be used as a reaction solvent for organic synthesis of Grignard reagents, rubbers, pesticides, and the like. |
| category | flammable liquid |
| toxicity grade | low toxicity |
| Acute toxicity | inhalation-rat LCL0:4000 PPM/4 hours; Oral-rat LD50: 7400 mg/kg |
| stimulation data | Skin-rabbits 100 mg/24 h moderate; eye-rabbit 500 mg/24 h moderate |
| explosive hazard characteristics | explosive when mixed with air; contact with air to produce explosive peroxide |
| flammability hazard characteristics | in case of open flame, high temperature, flammable oxidant; Combustion stimulus smoke |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from oxidants and acids, NCL3 |
| extinguishing agent | dry powder, carbon dioxide, foam |
| spontaneous combustion temperature | 365 ° F. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:04
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Raw Materials for Di-n-butyl ether