111-92-2
Di-n-butylamine
CAS: 111-92-2
Molecular Formula: C8H19N
111-92-2 - Names and Identifiers
| Name | Di-n-butylamine |
| Synonyms | ai3-15329 ai3-52649 (n-C4H9)2NH Dibutilamina dibutylamine Dibuthylamine Dinbutylamine 2-n-butylamine Di-n-butylamine Butylamine, di-N- butanamine,N-butyl N-Butyl-1-butanamine N-butylbutan-1-amine Di-n-butyl-d18-amine 1-Butanamine,N-butyl- N-butylbutan-1-aminium |
| CAS | 111-92-2 |
| EINECS | 203-921-8 |
| InChI | InChI=1/C8H19N/c1-3-5-7-9-8-6-4-2/h9H,3-8H2,1-2H3/p+1 |
| InChIKey | JQVDAXLFBXTEQA-UHFFFAOYSA-N |
111-92-2 - Physico-chemical Properties
| Molecular Formula | C8H19N |
| Molar Mass | 129.24 |
| Density | 0.767g/mLat 25°C(lit.) |
| Melting Point | −62°C(lit.) |
| Boling Point | 159°C(lit.) |
| Flash Point | 106°F |
| Water Solubility | 4.05 g/L (25 ºC) |
| Solubility | water: soluble3.8g/L at 20°C |
| Vapor Presure | 1.9 mm Hg ( 20 °C) |
| Vapor Density | 4.46 (vs air) |
| Appearance | Liquid |
| Color | White |
| Odor | Weak ammonia. |
| Merck | 14,3032 |
| BRN | 506001 |
| pKa | 11.25(at 21℃) |
| PH | 11.1 (1g/l, H2O, 20℃) |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents, most common metals, strong acids. Vapours may flow over surfaces to a distant source of ignition. Can form explosive mixtures with air. |
| Explosive Limit | 0.6-6.8%(V) |
| Refractive Index | n20/D 1.417(lit.) |
| Physical and Chemical Properties | Density 0.762 melting point -62°C boiling point 159°C refractive index 1.416-1.418 flash point 39°C water-soluble 4.05g/L (25°C) |
| Use | For oil additives, rubber accelerators, mineral flotation agents, corrosion inhibitors, emulsifiers, pesticides, polymerization inhibitors and dyes |
111-92-2 - Risk and Safety
| Risk Codes | R10 - Flammable R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R35 - Causes severe burns R23 - Toxic by inhalation R21/22 - Harmful in contact with skin and if swallowed. |
| Safety Description | S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S28A - S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S23 - Do not breathe vapour. |
| UN IDs | UN 2248 8/PG 2 |
| WGK Germany | 1 |
| RTECS | HR7780000 |
| FLUKA BRAND F CODES | 10 |
| TSCA | Yes |
| HS Code | 2921 19 99 |
| Hazard Class | 8 |
| Packing Group | II |
| Toxicity | LD50 orally in rats: 550 mg/kg (Smyth) |
111-92-2 - Upstream Downstream Industry
| Raw Materials | Ammonia 1-Butanol |
| Downstream Products | Copper,bis(N,N-dibutylcarbamodithioato-kS,kS')-, (SP-4-1)- |
111-92-2 - Reference Information
| LogP | 2.1 at 23℃ |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Use | Din-butylamine is an organic synthetic raw material, which can be used to synthesize carbosulfan on pesticides, it can also be used in the production of dyes, rubber vulcanization accelerators (BZTP), anti-aging agents (NBC), POP polymerization catalysts, anti-corrosion agents, drugs and oil additives dibutyl dithiocarbamate (molybdenum, lead, antimony, zinc). used in petroleum additives, rubber accelerators, mineral flotation agents, corrosion inhibitors, emulsifiers, pesticides, polymerization inhibitors and dyes, etc. used in organic synthesis, also used as rubber vulcanization accelerators and anti-corrosion agents acting machine synthesis intermediates. Used in the production of dyes, rubber vulcanization accelerators, anti-corrosion agents, drugs, and oil additives. The product is toxic and mice take LD50550mg/kg orally. Dibutylamine is used to produce dithiocarbamate promoters. For example, zinc dibutyldithiocarbamate (promoter BZ) is obtained by replacing the promoter TP with ZnCI2. The accelerator TP (sodium dibutyldithiocarbamate) is obtained by reacting dibutylamine with carbon disulfide and sodium hydroxide. This kind of product is a super accelerator, because the scorch time is too short, generally used in latex production. The accelerator TP reacts with NiSO4 to obtain the antioxidant NBC. This product is used in natural rubber, styrene-butadiene, chloroprene and other synthetic rubber to protect against heat, ozone and weather aging. Dibutyl dithiocarbamate (molybdenum, lead, antimony), such as dibutyl lead. Used as a petroleum additive, it has the functions of anti-oxidation, anti-wear and anti-extreme pressure. The accelerator TP is oxidized with the oxidant potassium ferricyanide at less than 0°C to produce tetrabutylthiuram disulfide. It is also a superaccelerator for natural rubber and synthetic rubber, and can also be used as a vulcanizing agent. used in the production of pharmaceuticals, pesticides, dyes, mineral flotation agents, emulsifiers and intermediates of fine chemicals. Used as corrosion competent preparation, rubber accelerator, insecticide, polymerization inhibitor, etc. |
| Production method | is obtained by the reaction of n-butanol and ammonia. Starting from lime nitrogen (calcium cyanamide), dibutylamine can also be obtained by sodium hydroxide, dibutyl, and cyanamide. There are two production methods for di-n-butylamine. The n-butanol method is obtained by the interaction of n-butanol and ammonia. The reaction equation is as follows: n-C4H9OH NH3 H2 → n-C4H9NH2 (n-C4H9)2NH (n-C4H9)3N process is as follows: n-butanol, ammonia and hydrogen are controlled by a flowmeter and passed into a stainless steel reaction tower according to the ratio. The tower is filled with copper-nickel acidic clay catalyst and the reaction temperature is about 200 ℃. After the reaction, the reaction gas is condensed, and the obtained crude product contains 2% ~ 4.82% of monobutylamine, 17% ~ 26% of dibutylamine and 31% ~ 61% of tributylamine. The reaction equation of lime nitrogen (calcium cyanamide) method is as follows: CaCN[NaOH]→ Na2NCN[C4H9Br]→(C4H9)2NCN[H2O]→[H2SO4](C4H9)2NH The process is as follows: lime nitrogen is suspended in ice water, cooled sodium hydroxide solution is slowly added, the temperature is kept below 25 ℃, and the sodium cyanamide solution is obtained by stirring vigorously for 1h. Add bromobutane ethanol solution to this solution, stir and reflux for 2.5h, then carry out distillation, cool and filter the residue, wash the filter cake with ethanol, combine the filtrate and lotion, extract with benzene, dry the extract with anhydrous calcium sulfate, distill the residue under reduced pressure after distilled benzene, and collect the fraction of 147~151 ℃/4.66kPa to obtain dibutylcyanamide. Add water, concentrated sulfuric acid and dibutylcyanamide to the reactor in sequence, slowly reflux for 6 hours, cool, pour cooled sodium hydroxide solution along the wall of the reactor (flow to the bottom of the reactor without mixing with the reaction material), and separate the free amine; Then heat and evaporate the amine and water together. Add granular potassium hydroxide to the distillate, and use ice-cold to separate the amine layer, dry, distilled, and collect the 157~160 ℃ fraction to obtain the finished product. |
| category | combustible items |
| toxicity classification | highly toxic |
| acute toxicity | oral-rat LD50: 189 mg/kg; Oral-mouse LD50: 290 mg/kg |
| stimulation data | skin-rabbit 10 mg/24 hours severe; Eye-rabbit 250 micrograms severe |
| flammability hazard characteristics | Combustible in case of open flame, high temperature and strong oxidant; Combustion emits toxic nitrogen oxide smoke |
| storage and transportation characteristics | complete packaging, light loading and unloading; warehouse ventilation, away from open flames, high temperature, separate from oxidant and acid |
| fire extinguishing agent | foam, dry powder, carbon dioxide, sand |
| auto-ignition temperature | 594 °F |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-05-29 17:18:23
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Raw Materials for 111-92-2
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